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Popularity of the model 13:
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Key Facts

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CST CL31



Description

The CST CL31 is a commercial summer tire designed for trailers, caravans, and light commercial vehicles requiring high load capacity and durability. Its reinforced construction utilizes steel belt reinforcement and a robust polyester casing to withstand heavy payloads without deformation. The tread pattern prioritizes stability over speed, with a focus on minimizing heat buildup during prolonged use.

Features & Benefits

  • High-Load Polyester Casing: Supports extreme weights (e.g., 2,755 lbs max load) for trailers and caravans.
  • Steel Belt Reinforcement: Enhances puncture resistance and distributes stress evenly under heavy loads.
  • Anti-Bead Separation Design: Prevents bead area damage during mounting/dismounting or abrupt lateral forces.
  • Flat-Spot Resistance: Maintains roundness during storage, ensuring smooth initial rides after periods of inactivity.
  • Heat-Resistant Tread Compound: Reduces thermal degradation during extended highway use.

Year Released

Introduced in 2014, the CL31 remains CST’s primary trailer tire in target markets.

Regions Availability

Distributed in Europe, Southeast Asia, and South Africa.

Vehicle Compatibility / Popular Vehicle Fitments

Designed for trailers and light commercial vehicles, common applications include:

  • Europe: Caravans (e.g., Bailey, Adria), utility trailers, horse boxes
  • Southeast Asia: Commercial cargo trailers, small agricultural transporters
  • South Africa: Boat trailers, overland camping trailers

Note: Confirm load ratings and fitment with a tire specialist to match specific trailer requirements.

Final Thoughts

The CL31 suits operators prioritizing payload capacity and longevity over speed or all-terrain versatility. Its construction addresses common trailer tire failures like bead separation and sidewall bulging, making it a reliable choice for heavy-duty hauling. For caravan owners or logistics fleets needing cost-effective, high-load tires, the CL31 delivers utilitarian value without premium pricing.


Detailed Information

Type and Size
Tire Model
CST / CL31
Car Type
Season
Summer
Rim Diameter
13 / 14 / 15 / 16 "
Width
165 / 175 / 185 / 195 / 205 / 215 / 225 / 235 mm
Aspect Ratio
70 / 75 / 80 / 85 %
Construction
Radial
Special Features
Runflat
No
Mud and Snow
No
Extra Load
No
Speed and Load
Speed Index
N (max 87 mph) ... S (max 112 mph)
Load Index (max load for a tire)
 

CST / CL31 Sizes & Specifications

Rim Model Size Index Features Max inflation pressure Max load Approved rim width Load range Price
R13 165/70 R13 88/86S 165/70 R13 88/86S 54 S560/D530 4.0-(5.0)-5.5 C
R13 165/80 R13 94/93R 165/80 R13 94/93R
R13 175/80 R13 97/95N 175/80 R13 97/95N
R14 175/70 R14 95/93S 175/70 R14 95/93S 54 S690/D650 4.5-(5.0)-5.5 C
R14 175/70 R14 99/98N 175/70 R14 99/98N 65 S775/D750 4.5-(5.0)-6.0 C
R14 175/75 R14 99/98S 175/75 R14 99/98S 69 S775/D750 4.5-(5.0)-5.5 C
R14 205/80 R14 109/107Q 205/80 R14 109/107Q
R14 215/75 R14 112/110Q 215/75 R14 112/110Q 69 S1120/D1060 5.5-(6.0)-7.0 C
R15 185/80 R15 103/102Q 185/80 R15 103/102Q
R15 195/70 R15 104/102S 195/70 R15 104/102S 65 S900/D850 5.0-(6.0)-6.0 C
R15 195/80 R15 106/104R 195/80 R15 106/104R
R15 205/70 R15 106/104R 205/70 R15 106/104R 65 S950/D900 5.5-(6.0)-6.5 C
R15 215/70 R15 109/107Q 215/70 R15 109/107Q 65 S1030/D975 5.5-(6.5)-7.0 C
R15 225/70 R15 112/110Q 225/70 R15 112/110Q 69 S1120/D1060 6.0-(6.5)-7.0 C
R16 195/75 R16 107/105R 195/75 R16 107/105R 69 S975/D925 5.0-(5.5)-6.5 C
R16 195/75 R16 110/108R 195/75 R16 110/108R 75 S1060/D1000 5.0-(5.5)-6.0 C
R16 205/80 R16 110/108Q 205/80 R16 110/108Q
R16 215/75 R16 113/111R 215/75 R16 113/111R 69 S1150/D1090 5.5-(6.0)-7.0 C
R16 215/75 R16 116/114R 215/75 R16 116/114R 69 S1250/D1180 5.5-(6.0)-7.0 C
R16 235/85 R16 120/116Q 235/85 R16 120/116Q 81 S1380/D1260 6.0-(6.5)-7.5

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