Upgrade or refresh your Bontrager wheels. Upgrade or refresh your Bontrager wheels. Genuine replacement parts Genuine replacement parts When it's time to refresh your trusty wheelset, Trek Genuine Replacement Parts have got you covered. When it's time to refresh your trusty wheelset, Trek Genuine Replacement Parts have you covered. - Sold in packs of three for easy upgrades to 108-tooth engagement Sold in packs of three for easy upgrades to 108 tooth engagement - Use 3 pawls/springs for 54-tooth engagement Use 3 pawls/springs for 54 tooth engagement - Use 6 pawls/springs for 108-tooth engagement Use 6 pawls/springs for 108 tooth engagement - Pawls sold separately Pawls sold separately
