Despite the move to narrow-wide chain rings there are still some aggressive riders who appreciate the security of a proper chain guide device.
Chain guards offer the security of knowing that you are not going to drop your chain, even under the most extreme conditions. Merlin supply chain guides from e.thirteen.
Praxis Road Chain Guide - Braze-On希望小売価格
Force Chain Guide With Bash Ring希望小売価格
Force Chain Guide希望小売価格
Wolf Tooth Gnarwolf Chainguide希望小売価格