Apex 1, Rear derailleur, 11sp., Long cage, Black Mountain bikes Fits two Yepp® Easyfit baby

Fits two Yepp® Easyfit baby seats without adapter

Wolf Tooth bottom bracket sockets are tools for installation and removal of external cup bottom brackets

It’s One Bike to Rule Them All

Designed for trail and enduro riding

Apex 1, Rear derailleur, 11sp., Long cage, Black Mountain bikes Fits two Yepp® Easyfit babyLong cage 42t capacity CAGELOCK technology for easy wheel removal and installation Compatible with 10 speed and 11 speed SRAM 1x road systems Equipped with ROLLER BEARING CLUTCH X HORIZON design reduces shift force, eliminates ghost shifting and chain slap Large upper pulley offset automatically adjusts chain gap Steel cage SRAM Model ID: RD APX 1 A1