BOX Two Prime 9 Chain (144L) - Silver Description-9mm Shaft Integrated USB thumb stick

Integrated USB thumb stick

A CN (tight clearance) upper pulley bearing maximizes shifting accuracy while a C4 (loose clearance) lower pulley bearing promotes unconstrained chainline movement

TR - Tubeless Ready compatible with sealant based tubeless systems or with tubes

8mm Size 44cm Hood Width 44cm Drop Width 48

BOX Two Prime 9 Chain (144L) - Silver Description-9mm Shaft Integrated USB thumb stickPrime 9 Technology for wide range without complexity Wider chain is strong and durable 9 speed chain has outer width of normal 9 speed but a narrower inner width to match 10 11 speed narrow wide chainrings. Compatible with most 10, 11, and 12 speed chainrings as well as BMX 3 32" chainrings and cogs 8 speed chain has outer width of normal 8 speed but a narrower inner width, optimized for use with Box Four Narrow Wide chainrings Model Box Two Prime 9