Comas 108.9 Freewheel

Comas 108.9 18t Freewheel

High quality Comas 108.9 18t freewheel. 100% developed for bike trials, which prevents the freewheel from skipping. Compatible with most screw-on hubs and cranks for bike trials.

Description and materials
- Comas 108.9 freewheel for bike trials from young brand Comas, owned by Biketrials World Champion Dani Comas.
- Developed and tested by Comas team riders Sergi Llongueras, Vincent Hermance and Eloi Palau.
- Both the outer ring and body are made of high-strength Cr-Moly steel.
- Reinforced Comas springs ensure higher reliability and accuracy, preventing the freewheel from skipping while riding.
- It has 3 groups of 36 engagement points each, for a total of 108 engagement points per revolution.
- Features bearings on both sides to allow for smooth, friction-less spinning.
- Can be removed with a standard 4-prong freewheel tool.
- Standard 1.37”x24tpi thread, compatible with most screw-on cranks and rear hubs for bike trials.
- Sold individually.

Compatibility
- Compatible with both 1/8” and 3/32” chains.
- Standard 1.37”x24tpi screw-on cranks and hubs.
- Not compatible with BB30 or splined cranks or hubs.

Dimensions
- Number of teeth: 18 (18t)
- Number of pawls: 9
- Engagement points: 108

- Tooth width: 2.2mm
- Overall thickness: 17mm

Colour
- Black outer ring, silver body with white Comas logos.

Weight
- 176g

Additional Information
It is highly recommended to bed in the freewheel for a few hours before trials use to make sure any excess grease works away from the freewheel and the pawls work correctly.
If you want to speed up the process, just apply some oil between the outer teeth and the centre of the freewheel.
If you don’t bed in the freewheel before trials use, it won’t work correctly and will skip, therefore damaging the pawls and ratchet.
Damage occurred to the freewheel because of inappropriate use will void the guarantee.