Web Menu

Product Search

Language

Share

Zhejiang Qingda Rubber Co., Ltd.

Inner Tubes Factory

Home / Products / Inner Tube

Product Category

Inner Tube

The inner tube is the core component of the pneumatic tyre system. It is located inside the tyre and is mainly responsible for maintaining tyre pressure, supporting the tyre structure, and cooperating with the outer tyre to buffer road vibrations. Qingda brand inner tubes are strictly controlled in material selection and manufacturing processes. They have excellent air tightness and elasticity, can effectively prevent air leakage, and ensure the stability of tyre pressure during driving. Its good aging resistance enables the inner tube to maintain a long service life under high temperature, load and frequent deformation conditions. Under various complex road conditions, Qingda inner tubes provide vehicles with reliable support and a comfortable driving experience through stable air pressure bearing capacity and adaptability. The product is suitable for tyre systems of various models, has good compatibility and safety, and is an important component to ensure the normal inflation and operation of tyres.

  • Industrial&Agricul Tural Tractor Tube

    Industrial&Agricul Tural Tractor Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    200X50 DIN7777 120 1.20
    2.50/2.80-4
    2.50-4    		 DIN7777
    JS87P
    TR13
    TR87    		 105
    105
    110
    105    		 1.20
    1.20
    1.20
    1.20
    3.00-4 DIN7777
    TR13
    TR87    		 80
    85
    80    		 1.20
    1.20
    1.20
    3.00/3.50/4.10-4
    3.50-4
    4.00-4
    4.10/3.50-4    		 DIN7777
    TR13
    TR87    		 70
    70
    70    		 1.20
    1.20
    1.20
    3.50-5
    10x4.50-5
    3.50/4.10-5    		 DIN7777
    TR13
    TR87    		 70
    70
    70    		 1.20
    1.20
    1.20
    13x5.00-6
    13x6.50-6
    5.30/4.50-6    		 TR13
    TR87

    45
    45

    		 1.20
    1.20
    3.50-7 TR13
    TR87

    60
    60

    		 1.20
    1.20
    3.00/3.50-8
    3.25-8
    3.00-8    		 TR13
    TR4
    TR87    		 70
    70
    70    		 1.20
    1.20
    1.20
    3.50/4.00-8
    3.50-8    		 TR13
    TR6
    TR87    		 65
    65
    65    		 1.20
    1.20
    1.20
    4.00-8
    3.75/4.00/4.80-8
    15x4.59-8
    4.80/4.00-8    		 JS2
    TR13
    TR6
    TR87
    V30202    		 60
    60
    60
    60
    50    		 1.20
    1.20
    1.20
    1.20
    1.20
    4.80-8 TR13
    TR6
    TR87    		 45
    45
    45    		 1.20
    1.20
    1.20
    2.75-9
    2.75-9(2.3/4-9)    		 TR13
    TR4
    TR87    		 65
    65
    65    		 1.20
    1.20
    1.20
    4.50/5.00-10
    4.5-10    		 JS87C
    TR13
    TR6    		 40
    40
    40    		 1.20
    1.20
    1.20
    145/70-12
    4.00/4.50/4.80-12
    4.00/4.50-12
    D-12    		 JS87C-ON
    TR13
    TR6    		 40
    40
    40    		 1.20
    1.20
    1.20
    135/145-12
    135-12
    155/70-12
    4.50-12
    4.50/5.00-12    		 JS87C
    TR13    		 35
    35    		 1.20
    1.20
    5.00-12
    5.00/5.50-12    		 TR218AM 35 1.20
    4.00-13
    21×4
    110/90-13    		 JS87C
    TR13
    TR6
    V60201    		 45
    45
    45
    40    		 1.20
    1.20
    1.20
    1.20
    4.50-13 JS87C
    TR13

    40
    40

    		 1.20
    1.20
    25×8.50-14 TR13 25 1.20
    4.00/4.50-15
    125R15
    400-15    		 JS87C
    TR13
    TR15
    TR6    		 40
    40
    40
    40    		 1.20
    1.20
    1.20
    1.20
    6.50-16
    6.00/6.50-16    		 TR218AM 26 1.20
    7.50-16 TR218A 18 1.20
  • Motorcycle Tube

    Motorcycle Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    2.25/2.05-14
    2.25-14    		 Tr4 70 1.20
    2.1/2-14
    2.50/2.75-14
    2.50-14    		 TR4 65 1.20
    2.50/2.75-14.80/80-14
    2.753.00-14
    2.75-14    		 TR4 60 1.20
    3.00/3.25-14
    3.00-14
    80/100-14    		 TR4 55 1.20
    3.25/3.50-14 TR4 50 1.20
    3.50/4.00-14 TR6 45 1.20
    2.25-15 TR4 65 1.20
    2.50-15 TR4 60 1.20
    2.75-15 TR4 52 1.20
    2.00/2.25-16
    2.1/4-16
    2.25-16
    2.25/2.50-16    		 TR4 65 1.20
    2.50/2.75-16
    2.50-16    		 TR4 60 1.20
    2.3/4-16
    2.75/3.00-16
    2.75-16    		 TR4 52 1.20
    3.00-16 TR4 50 1.20
    3.25/3.50-16
    3.25-16    		 TR4 48 1.20
    3.50/4.00-16
    3.50-16    		 TR6 43 1.20
    4.00/4.25-16
    4.25-16
    4.00/4.50-16
    4.00-16
    4.25/4.50/4.60-16
    10/90-16
    4.25/4.50-16    		 TR15-ON
    TR6-ON    		 40
    40    		 1.20
    1.20
    2.00/2.25-17
    2.00-17    		 TR4 70 1.20
    2.25/2.50-17
    2.25-17    		 TR4 60 1.20
    2.50/2.75-17
    2.50-17    		 TR4 60 1.20
    2.75/3.00-17
    80/90-17
    2.75-17    		 TR4 50 1.20
    3.00/3.25/3.50-17
    3.00/3.25-17
    3.00-17    		 TR4 50 1.20
    3.25/3.50-17
    3.25-17    		 TR4 45 1.20
    3.50/4.00-17
    3.50-17
    3.75/4.00-17
    100/100-17    		 TR6 40 1.20
    30/80-17
    40/70-17
    4.50/5.00-17
    4.25/4.50/4.75-17
    4.25/4.50-17
    4.50/4.60-17
    4.50-17
    4.60-17
    20/90-17    		 TR6 36 1.20
    5.00/5.10/5.30/5.60-17
    5.00/5.10/5.30-17
    5.10/5.30-17
    5.10-17    		 Tr6-ON 30 1.20
    2.00-18 TR4 65 1.20
    2.25/2.50-18
    2.50/75-18
    2.25-18    		 TR4 60 1.20
    2.25/2.50-18
    2.50/75-18
    2.25-18    		 TR4 60 1.20
    2.50-18
    2.50/75-18    		 TR4 55 1.20
    2.75/3.00-18
    2.75-18    		 TR4 50 1.20
    3.00/3.25-18
    90/90-18
    3.00-18    		 TR4 48 1.20
    3.25/3.50-18
    3.25-18    		 TR4 43 1.20
    100/100-18
    3.50/4.00-18
    3.50-18
    3.75/4.00-18
    3.50/4.10-18
    3.50/4.00R18    		 TR4 43 1.20
    110/120/100-18
    3.75/4.25-18
    4.00/4.50-18
    4.00-18
    4.10-18
    4.00/4.25-18
    120/80-18    		 TR6 40 1.20
    120/100-18
    130/80-18
    4.00/5.10-18
    4.50-18
    4.60/5.10-18
    4.50/5.00-18
    4.60-18    		 TR6
    TR6-ON    		 35
    35    		 1.20
    1.20
    2.25/2.50-19
    2.25-19    		 TR4 60 1.20
    1.20
    2.50/2.75-19
    2.50-19    		 TR4 55 1.20
    2.75/3.00-19
    2.75-19    		 TR4 50 1.20
    3.00-19
    90/90-19
    3.00/3.25-19
    70/100-19    		 TR4 45 1.20
    3.25/3.50-19
    3.25-19
    3.25-19(3.1/4-19)    		 TR4 40 1.20
    100/90-19
    3.50-19
    3.75-19
    3.50/4.00-19
    3.60-19    		 TR6 40 1.20
    110/90-19
    120/90-19
    4.00/4.10-19
    4.00/4.50-19
    4.00-19
    110/120/90-19
    3.75/4.00/4.50-19    		 TR13-OFF
    TR13-ON
    TR15-OFF
    TR15-ON
    TR6-ON    		 35
    35
    35
    35
    35    		 1.20
    1.20
    1.20
    1.20
    1.20
    2.25-21 TR4 55 1.20
    2.50-21 TR4 55 1.20
    2.75/3.00-21
    2.75-21    		 TR4 45 1.20
    3.00/3.25-21
    3.00-21
    80/100-21
    90/90-21    		 TR4 40 1.20
    3.25/3.50-21 TR4 40 1.20
  • Scooter Tube

    Scooter Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    2.50/2.75-10
    2.75-10
    2.75/3.00-10    		 JS87C
    TR13
    TR4    		 65
    65
    65    		 1.20
    1.20
    1.20
    3.00/3.25/3.50-10
    3.00/3.25-10
    3.00/3.50-10
    3.00-10    		 JS87C
    TR13
    TR4    		 60 1.20
    1.20
    1.20
    3.50/4.00-10
    3.50-10    		 JS87C
    TR13
    TR6    		 50
    50
    50    		 1.20
    1.20
    1.20
    120/130/90-10 JS87C 50 1.20
    2.75-12
    2.75/3.00-12    		 JS87C
    TR13
    TR6    		 60
    60
    60    		 1.20
    1.20
    1.20
    3.00/3.25-12
    3.00/3.50-12
    3.00-12
    80/100-12    		 JS87C
    TR13
    TR4    		 55
    55
    55    		 1.20
    1.20
    1.20
    140/70-12 TR13-ON 35 1.20
  • Byclcle Tube

    Byclcle Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    12x1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 150
    150
    150
    150    		 1.20
    1.20
    1.20
    1.20
    12x1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 150
    150
    150
    150    		 1.20
    1.20
    1.20
    1.20
    12x1.75
    12-1/2x1.75x2-1/4
    12-1/2×2-1/4    		 AIV
    E/N
    D/V
    D/V-E/P
    F/N    		 150
    150
    150
    150
    150    		 1.20
    1.20
    1.20
    1.20
    1.20
    14x1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 150
    150
    150
    150    		 1.20
    1.20
    1.20
    1.20
    14x1.75 A/V
    D/V
    D/V-E/P
    F/N    		 130
    130
    130
    130    		 1.20
    1.20
    1.20
    1.20
    14×2.125 A/V
    D/V
    D/V-E/P
    F/N    		 120
    120
    120
    120    		 1.20
    1.20
    1.20
    1.20
    16x1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 130
    130
    130
    130    		 1.20
    1.20
    1.20
    1.20
    16x1.75/1.90
    16×2.00
    16x1.95/2.10    		 A/V
    EAD
    D/V
    D/V-E/P
    F/N    		 120
    120
    120
    120
    120    		 1.20
    1.20
    1.20
    1.20
    1.20
    16x2.125 A/V
    E/N
    D/V
    D/V-E/P
    F/N    		 115
    115
    115
    115
    115    		 1.20
    1.20
    1.20
    1.20
    1.20
    18x1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 120
    120
    120
    120    		 1.20
    1.20
    1.20
    1.20
    18×1.75 A/V
    D/V
    D/V-E/P
    F/N    		 120
    120
    120
    120    		 1.20
    1.20
    1.20
    1.20
    18×2.125 A/V
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    20×1-3/8 A/V
    D/V
    D/V-E/P
    F/N    		 120
    120
    120
    120    		 1.20
    1.20
    1.20
    1.20
    20x1.75/1.90
    20x1.90
    20×1.95/2.10    		 E/N
    D/V
    D/V-E/P
    F/N    		 110
    110
    110
    110    		 1.20
    1.20
    1.20
    1.20
    20×2×1-3/4
    20x2.125    		 A/V
    E/N
    EAV
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    22x1-3/8
    22x1-5/8x1-1/2    		 A/N
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    22×1.75 A/N
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    24×1-3/8
    24×1-5/8x1-1/2    		 A/N
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    24x1.75/1.90
    24x2.00
    24x1.95
    24×1.90
    24x1.90/2.10    		 A/N
    D/V
    D/V-E/P
    F/N    		 95
    95
    95
    95    		 1.20
    1.20
    1.20
    1.20
    24x2.125 A/N
    E/V
    EAV
    D/V-E/P
    F/N    		 85
    85
    85
    85
    85    		 1.20
    1.20
    1.20
    1.20
    1.20
    26x1-1/4
    26x1-3/8
    26×1-3/8×1-1/2
    26x1-1/2x1-5/8
    26x1-1/2    		 A/N
    EAV
    D/V
    D/V-E/P
    F/N    		 100
    100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    1.20
    26x2.125
    26x2.2    		 A/V
    E/N
    EAV
    D/N
    N-E/P    		 75
    75
    75
    75    		 1.20
    1.20
    1.20
    1.20
    26x2.25
    26×2.35    		 A/V
    D/N
    PN-E/P    		 50
    50
    50
    50    		 1.20
    1.20
    1.20
    1.20
    27×1
    27×1-1/8
    700×20C
    700×23C
    700×20/25C    		 A/V
    D/N
    F/N    		 110
    110
    110    		 1.20
    1.20
    1.20
    27×1-1/4
    700×25C
    700×28C
    28x1-5/8x1
    28x1-5/8x1-1/8    		 A/V
    E/N
    EAV
    D/N
    D/V-E/P
    F/N    		 100
    100
    100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    28×1-5/8x1-1/4(32C)
    28×1-3/8
    700×32
    700X35C
    28X1-5/8X1-3/8(35C)
    28X1-3/8X5/8    		 A/V
    E/N
    EAV
    D/N
    D/V-E/P
    F/N    		 100
    100
    100
    100
    100
    100    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    28×1-5/8×1-1/4(32C)
    700X38
    700×40C
    700×42C
    28X1.6
    28X1-1/2    		 A/V
    E/N
    EAV
    D/N
    DV-E/P
    F/N    		 95
    95
    95
    95
    95    		 1.20
    1.20
    1.20
    1.20
    1.20
    28x1.75 A/V
    EAV
    D/N
    D/V-E/P
    F/N    		 75
    75
    75
    75
    75    		 1.20
    1.20
    1.20
    1.20
    1.20
  • Passenger Car Tube

    Passenger Car Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    110/90-10
    145R10
    E-10
    ER10
    120/90-10
    130/80-10
    4.00-10
    4.00R10
    4.00/4.50-10
    145-10    		 JS87C
    TR13
    TR6    		 50
    50
    50    		 1.20
    1.20
    1.20
    120/70-12
    125R12
    125-12
    120/70R12
    130/70-12
    4.00-12    		 JS87C
    TR13
    TR6    		 45
    45
    45    		 1.20
    1.20
    1.20
    125/135-12
    DR12
    D-12
    4.00/4.40-12    		 TR13 40 1.20
    145/155-12
    155R12
    5.00-12
    E-12
    ER12
    145/155R12
    155-12
    E-12/13
    5.00/5.50-12    		 JS87C-ON
    TR13    		 35
    35    		 1.20
    1.20
    135/145-13
    135/145R13
    130/140/60-13
    E-13
    35-13
    5.60/165/65-13
    ER13    		 JS87C-ON
    TR13
    TR6-ON    		 35
    35
    35    		 1.20
    1.20
    1.20
    155/165-13
    155-165R13
    6.15-13
    5.00-13
    23×5
    155-13
    F-13
    165/65-13
    165/70-13
    FR13
    175/70R13    		 TR13
    V30219    		 33
    27    		 1.20
    1.20
    175/185-13
    175/185R13
    G-13
    GR13
    185/70-13    		 TR13 30 1.20
    155/165-14
    155/165R14
    175/70-14
    FR13/14
    6.00/6.50-14
    F-14
    FR14
    155-14
    165/175/70-14
    165/70-14
    165-14
    5.60/5.90/6.00-14
    165/175/65R14    		 TR13
    TR15    		 30
    30    		 1.20
    1.20
    175/185/6.00/6.50-14
    175/185R14
    175-14
    6.50-14
    G-14
    GR14
    175/185-14
    185-14
    6.95/175-14    		 TR13 28 1.20
    185/195-14
    195/205R14
    7.00-14
    205/70-14
    K-14
    KR14
    195/205-14
    195-14    		 TR13
    TR15    		 25 1.20
    1.20
    155/165-15
    155/165R15
    E-15
    ER15
    FR15
    165-15
    E-15
    5.00/5.50-15    		 TR13
    TR15
    TR15-ON
    TR6-OFF
    TR6-ON    		 30
    30
    30
    30
    30    		 1.20
    1.20
    1.20
    1.20
    1.20
    175/185-15
    175/185R15
    G-15
    175-15
    GR15
    185/195/65R15    		 TR13
    TR15
    TR177A
    TR75A    		 27
    27
    25
    25    		 1.20
    1.20
    1.20
    1.20
    185/195-15
    195/205R15
    K-15
    195-15
    KR15    		 TR13
    TR15
    TR177A
    TR75A
    V30305    		 23
    23
    20
    20
    20    		 1.20
    1.20
    1.20
    1.20
    1.20
    M-15
    MR-15    		 TR13 18 1.20
    195/205-15
    155/165-16
    F-16
    175/75R16
    5.50/6.00-16
    140/160/80-16    		 TR13
    TR15
    TR15-ON
    TR177A
    TR6-OFF
    TR6-ON
    TR75A    		 30
    30
    30
    28
    30
    30
    28    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    175/185-16
    175/185R16
    G-16
    175/80-16
    185/195/70-16
    185/80-16
    GR16
    6.00/6.50-16    		 TR13
    TR15
    TR150-ON
    TR177A
    TR75A    		 26
    26
    24
    24
    24    		 1.20
    1.20
    1.20
    1.20
    1.20
    185/195-16
    195/205R16
    K-16
    195/80-16
    205/80-16
    KR16
    195/205-16
    205R16
    7.00/7.50-16
    205/215/80-16    		 TR13
    TR15
    TR150-ON
    TR177A
    TR75A
    V30207
    C30305    		 22
    22
    18
    18
    18
    18
    18    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    M-16
    MR16    		 T15 18 1.20
  • Light Truck Tube

    Light Truck Tube
    Size Valve Q'TY/CTN(PCS) Dimension/CTN(CUFT)
    5.50-15
    5.50/6.00-15    		 Tr13
    TR15    		 30
    30    		 1.20
    1.20
    6.50-15
    6.50/80-15
    6.00/6.50-15
    205/70-15
    6.50/7.00-15
    6.50/7.00R15
    6.50R15
    6.00-15    		 TR13
    TR15
    TR177A
    TR75A    		 27
    27
    25
    25    		 1.20
    1.20
    1.20
    1.20
    215/75-15
    215/70R15
    225/70-15
    H78-15
    7.00/7.50-15
    215/75R15
    7.00/7.50R15
    7.00R15
    7.00-15
    GR70R15    		 TR13
    TR15
    TR177A
    TR75A
    V30207
    V30305    		 23
    23
    20
    20
    20
    20    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    215/225-15
    235/75-15
    215/225R15
    28x9-15
    235/70-15
    7.50R15
    MR15
    7.50/8.25-15
    7.50-15
    8.15-15    		 TR13
    TR15
    TR177A
    TR75A
    V30405    		 18
    18
    16
    16
    16    		 1.20
    1.20
    1.20
    1.20
    1.20
    8.15/8.25/8.50-15
    225/235R15
    235-15
    8.25-15
    8.25R15    		 TR13
    TR177A
    TR75A
    TR77A
    V30405
    V30407
    V30410
    V30601    		 13
    11
    11
    11
    11
    11
    11
    11    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    5.50-16
    5.50/6.00R16
    5.50R16
    5.75-16
    5.00/5.10-16    		 TR13
    TR15
    TR177A
    TR75A
    V30605    		 30
    30
    28
    28
    28    		 1.20
    1.20
    1.20
    1.20
    1.20
    6.00/6.50/7.00-16
    6.00/6.50-16
    6.50-16
    6.50/7.00-16    		 TR13
    TR15
    TR150-ON
    TR177A    		 26
    26
    24
    24    		 1.20
    1.20
    1.20
    1.20
    6.50/7.00R16
    6.50R16
    6.00-16    		 TR75A
    TR76A
    TR77A
    V30207
    V30410    		 24
    24
    24
    24
    24    		 1.20
    1.20
    1.20
    1.20
    1.20
    7.00R16
    7.25-16
    7.00/7.50R16
    7.00-16
    7.00/7.50-16    		 TR13
    TR15
    TR150-ON
    TR177A
    TR75A
    TR77R
    V30207
    V30305
    V30410    		 22
    22
    18
    18
    18
    18
    18
    18
    18    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    215/225-16
    215/225R16
    235/80-16
    235/85-16
    245/70-16
    255/70-16
    MR16
    215R16
    7.50/8.25-16
    7.50-16
    7.50R16    		 TR13
    TR135ON
    TR15
    TR177A
    TR75A
    TR77R
    TR78A
    V30207
    V30305
    V30402
    V30405
    V30605    		 18
    16
    18
    16
    16
    16
    16
    16
    16
    16
    16
    16    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    8.25-16
    235-16
    8.25/9.00-16
    8-16    		 TR13
    TR15
    TR177A
    TR218A
    TR75A
    TR77R
    V30405    		 12
    12
    10
    12
    10
    10
    10    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    7.50-20 Tr15
    TR177A
    TR218A
    TR75A
    TR78A
    V30207
    V30405
    V30803    		 10
    9
    10
    9
    9
    9
    9
    9    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    8.25-20 TR175A
    TR177A
    TR75A
    TR77A
    TR78A
    V30207
    V30210
    V30405
    V30605
    V30608
    V30803    		 8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    10.5/80-20
    9.00/10.00-20
    9.00R20
    285/70-19.5
    9.00-20
    9.5-20    		 TR15-OFF
    TR175A
    TR177A
    TR218A
    TR300
    TR75A
    TR78A
    V30207
    V30213
    V30405
    V30605
    V30608    		 7
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8
    8    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    2.00-20
    2.5-20
    2.00R20
    2.4-20    		 Tr15
    TR175A
    TR179A
    TR218A
    TR78A
    V30405
    V30410
    V30605
    V30608    		 6
    6
    6
    6
    6
    6
    6
    6
    6    		 1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    1.20
    0.00-22
    275/80R22.5
    0.00/11.00-22    		 TR440
    TR444
    TR78A
    V30405
    V30605    		 6
    6
    6
    6
    6    		 1.20
    1.20
    1.20
    1.20
    1.20
    BABYCARTUBE
    6X11/4 CR202-25
    70/90    		 100 0.9
    81/2X2 CR202-32
    Cr202-90/45    		 100 0.9
    10×2 CR202-32
    Cr202-90/45    		 100 0.9
    255X50 CR202-32
    90/45    		 100 0.9
    121/2×21/4 VAR32
    CR202-90/45    		 100 0.9
    280X65-230 CR202-32
    90/45    		 100 0.9
ABOUT US
33YEARS OF
EXPERIENCE
About Us

Coming From China, Marketing To The World.

Zhejiang Qingda Rubber Co., Ltd. is a professional manufacturer of rubber tires and air springs in various specifications. Founded in 1992, the company is located in Chengxi New District, Yongkang City, covering a total area of over 70,000 square meters. Its location is convenient: approximately 1.5 kilometers east of the city center, 5 kilometers west of the Jinliwen Expressway entrance, and 1 kilometer north of National Highway 330 (Jinwen Highway).

Factory Overview Certificate
Certificate Of Honor
  • High tech Enterprise Certificate
  • Provincial High tech Enterprise R&D Center
  • Advanced Unit
  • Vice President Unit
  • Model Enterprise
  • AAA Enterprise Credit Rating
  • Standardized Units
  • Advanced Enterprise
  • National High-tech Enterprise
  • Advanced Collective in Safety Production
  • Top 100 Taxpayers
  • Tax Winning Enterprise

News

Message Feedback

Industry knowledge

Inner tubes are the core sealed component of a pneumatic tire system. They are ring-shaped air bladders made of airtight elastic material, inserted into the tire and inflated to maintain tire pressure. The inner tube itself does not directly contact the road surface; instead, it forms a closed air chamber through its cooperation with the tire carcass and rim, providing cushioning, load-bearing capacity, and stability for the vehicle.

  • Wall Thickness and Structural Classification: Standard Wall: Approximately 1.0-1.5 mm thick, balancing weight and durability, the default choice for more applications.
  • Thick/Reinforced Wall: 1.5-2.5 mm thick, enhancing puncture protection and abrasion resistance, suitable for e-bikes, heavy-duty vehicles, off-road riding, and harsh road conditions. E-bikes, due to their combined weight (vehicle weight + battery + rider load) often exceeding 100 kg, and the greater stress exerted by the motor torque on the tire system, require reinforced inner tubes.
  • Lightweight/Thin Wall: Wall thickness 0.8-1.0 mm, weight reduction, suitable for racing road bikes and riders seeking speed. However, puncture protection is weaker and lifespan is shorter.

Application Scenarios: Who Purchases Inner Tubes in Bulk?

1. Motorcycle Manufacturers and Aftermarket

Global annual motorcycle production exceeds 55 million units (mainly in Asia), resulting in huge demand for inner tubes. Motorcycle inner tube sizes cover everything from scooters (3.00-10, 90/90-10) to heavy cruisers (150/80-16, MT90-16), with butyl rubber as the primary material (offering better air retention and high-temperature resistance than natural rubber).

Motorcycle inner tube valve types include: JS2 (straight valve), TR13 (curved valve), TR87 (short valve), TR177 (extended valve), etc., requiring matching with rim design and braking system layout.

2. Aftermarket for Automobiles, Trucks, and Commercial Vehicles

While tubeless tires are now widespread in passenger cars, there remains stable demand for inner tubes in the following areas:

  • Light Commercial Vehicles/Trucks: Some developing countries still use inner tube tires, in sizes such as 7.00-15, 7.50-16, and 8.25-20.
  • Trucks and Buses: Heavy-duty trucks and long-haul buses still use inner tubes in some markets, especially off-highway and inclement road conditions.
  • Agricultural Machinery: Tractors, combine harvesters, trailers, etc., use large-size inner tubes (such as 11.2-24, 12.4-28, and 14.9-30), made of natural rubber or butyl rubber, to withstand high loads and the risks of field punctures.
  • Industrial Equipment: Forklifts, loaders, airport ground support equipment, etc., use press-fit tires or solid tires, but some equipment still uses pneumatic tires with inner tubes.

3. Bicycle Dealers, Repair Shops, and Sporting Goods Retailers

This is the core channel for the inner tube aftermarket replacement market. Demand characteristics include:

  • Seasonal fluctuations: Demand surges during the spring riding season (March-May in the Northern Hemisphere), requiring advance stocking.
  • Multi-size inventory: Coverage is needed for all wheel diameters from 12-29 inches, Presta and Schrader dual-valve tires, and various wall thicknesses and materials.
  • Package sales: Tire + inner tube combinations, inner tube + tire repair kits, spare inner tube carrying cases, etc., increase the average order value.

Why Bulk Purchase from Us?

Incorrect inner tube size matching is one of the main causes of punctures and blowouts. We offer: A tire-inner tube compatibility chart based on ETRTO standards, ensuring precise matching of width range and wheel diameter.

Avoid common mistakes such as "fitting a 700×25C inner tube to a 28C tire" (too tight, to puncture) or "fitting a 700×32C inner tube to a 25C tire" (too loose, folding and breakage).

Professional material and wall thickness configurations

Recommended optimal material-wall thickness combinations based on application scenario:

  • Daily commuting/city riding: Standard butyl, 1.0-1.2mm wall thickness, balancing cost and durability
  • Road racing/time trials: Lightweight butyl (0.8-1.0mm) or latex, weight reduction and low rolling resistance
  • Mountain biking/Enduro: Reinforced butyl (1.2-1.5mm), enhancing puncture. Protection
  • Electric Bicycles/Heavy Loads: Reinforced butyl (1.2-1.5mm) or TPU, high load capacity and torque resistance
  • Spare/Portable: TPU inner tubes, extremely compact folding size for easy carrying

Frequently Asked Questions about Inner Tube Purchasing

Q1: Butyl rubber or natural rubber inner tubes, which should I choose for my product?

A: Both materials have their advantages and disadvantages; the choice depends on the application scenario and cost structure.

  • Butyl rubber is a synthetic rubber with good air retention (low air permeability), good heat and ozone resistance, slow aging, moderate flexibility, and easy repair (standard tire repair tools are sufficient). It is moderately priced and suitable for daily commuting, urban riding, standard passenger vehicles, and general industrial applications, making it the market's default choice.
  • Natural rubber is made from natural latex, offering higher elasticity, greater tensile strength, and better abrasion resistance. However, it has poorer air retention (requiring more frequent inflation), weaker high-temperature and ozone resistance, faster aging, and more volatile costs (affected by natural rubber futures prices). It is suitable for scenarios requiring extremely high elasticity or for some riders' personal preferences.

Purchasing Recommendation: Unless the customer explicitly specifies natural rubber, butyl rubber is a more reliable choice—its air retention, durability, and cost stability are all superior to natural rubber.

Q2: Are latex inner tubes and TPU inner tubes worth investing in? What markets are they suitable for?

A: Latex and TPU are choices for the high-end/racing market, but not suitable for the mass market.

  • Latex inner tubes offer significant advantages: extreme lightweight (50-100 grams lighter than butyl) and extremely low rolling resistance, making them the preferred choice for professional road racing and time trials. However, they also have significant disadvantages: they are very fragile, difficult to install, have poor air retention (requiring inflation before each ride), are difficult to repair after puncture, and pose a risk of thermal failure when used with carbon fiber rim brakes.
  • TPU inner tubes are extremely lightweight (approximately 70% lighter than butyl), very compact (easy to carry as a spare), have low rolling resistance, and offer better puncture resistance than latex. However, they are expensive (approximately 3-5 times the price of butyl), require advanced installation skills, and some products are sensitive to pump compatibility. They are suitable for road cyclists seeking extreme performance, long-distance riders (as a spare inner tube), and weight-sensitive markets.

Purchase Recommendations: For the mass market (commuter, city, children's bikes), stick with butyl rubber; for the high-end road bike market, latex or TPU options are available; for the mountain bike and e-bike markets, latex is not recommended (too fragile), while TPU can be considered a high-end option.

Q3: What is the shelf life of inner tubes? Will stored inner tubes age?

A: The shelf life of inner tubes is typically 3-5 years (unopened, protected from light, dry, and stored at room temperature). Aging manifests as rubber hardening, cracking, and decreased elasticity; they will naturally degrade even if unused.

Storage Recommendations:

  • Avoid direct sunlight (UV rays accelerate rubber aging)
  • Avoid high temperatures (>40°C accelerates oxidation)
  • Avoid contact with oils, solvents, and ozone sources (such as motors and welding equipment)
  • Keep the original packaging sealed to minimize contact with air
  • Follow the FIFO (First-In, First-Out) principle for inventory turnover

Aging Inspection: After opening, check if the rubber is sticky, hardened, or cracked; after inflation, observe whether it expands evenly and whether there are any localized weak points.

Purchasing Recommendations: When purchasing in bulk, confirm the production date to avoid receiving inventory nearing its expiration date; large fleet customers are advised to purchase in batches to avoid stockpiling too much at once and causing it to expire.

X Facebook
Products News