Detail
Drop outs (derailleur hangers) are a sacrificial component of your bike, designed to bend or break in the event of an accident - saving your frame from being damaged. Always have a spare, as the bike is un-rideable without one. This Polygon Thru-Axle MTB Direct Mount Drop Out only works with Shimano Direct Mount Rear Derailleurs. Fits: 2017 Entiat TR6 2017 Entiat TR8 2018 Polygon Xtrada 7.0 2018 Polygon Xtrada 8.0 2018 Polygon Siskiu T7 2018 Polygon Siskiu T8 2020 Siskiu D7 & D6 Bike Model Type Year Heist X5 – X7 2020