* Clean aluminium jockey wheels for our chain tensioner.
* Made in high quality 7075 T6 aluminium for a great durability and strenght.
* Sealed bearings offers much more smoother rolling on the bike and will be not a problem to ride in wet conditions.
* 10 teeth instead of 11, the chain get much more integrated by cutting one link (optionally).
* Different spacers included on the wheels.
* Weight: 22g