Quarq PowerTap G3 Hub End Caps 142mm Thru Axle (23974)
Quarq PowerTap G3 Hub End Caps 142mm Thru Axle (23974), The replacement PowerTap G3 Hub end caps are compatible with Gen 2 Hubs with 15mm axle and all G3 Hubs. 142mm thu axle end caps are only compatible with PowerTap G3 Disc Hubs and cannot be used to convert older hubs.