Comas ISIS 158mm

Product code: 14241

Thread is compatible with almost all screw-on trials freewheels!
Shorter 158mm length, ideal for junior bikes or better crank clearance!

- Great value, lightweight and tough cranks from Comas!
- Forged design for increased strength, with material removed on the rear of the crank to save weight.
- Found on select Comas complete bikes.
- ISIS fitting is compatible with a wide range of BB's.
- Shorter 158mm length, well suited to junior bikes or riders looking for better crank clearance.
- 1.37" x 24tpi thread suitable for use with any threaded sprocket or freewheel we sell (unless otherwise mentioned).
- Wide threaded section allows the use of a bash ring.
- Tough anodised black finish is complimented by stylish laser etched graphics.
- Available in 158mm length only.
- Weight: 469g
- Offset: 33mm

Ensure that your pedals are tightened to at least 310 in-lbs (35 Nm) every 5 minutes for the first few rides. Before fitting, it's also a good idea to make sure your pedal axles are clean (a wire brush works well) then greased before installation.
Similarly, always check crank bolt torque is at least 310 in-lbs (35 Nm) every 5 minutes for the first few rides, then each and every ride after that.
Failure to keep your pedals or crank bolts tight as described above is likely damage your cranks and this will not be covered under warranty.

Please note that the minimum required thread contact between crank arm and sprocket/freewheel is 7mm, and a 1.37" sprocket/freewheel with maximum internal thread diameter 33.80mm (NOT 1.375") must be used. Failure to adhere to this instruction will damage the cranks threads and this is not covered under warranty.

Please note: due to the manufacturing processes used for these cranks, there may be small variations in concentricity between the freewheel and bottom bracket interfaces. This can lead to a certain amount of run out for any freewheel, sprocket or adaptor installed on the crank arm. While this isn't an issue on trials bikes, for applications requiring much higher tolerances we cannot guarantee they will be suitable. Please get in touch if you have any questions.