BOX Two Prime 9 Chain (144L) - Silver Description-9mm Shaft Bar Tape Material Durasoft polymer

Bar Tape Material Durasoft polymer Misc 89g Color Violet Purple Primary Color Purple Self Adhesive Yes Tape Length 234cm

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

Integrated USB thumb stick

Optimized rolling resistance – the tread pattern is designed to maintain a reasonable rolling speed making it versatile across varying terrains

BOX Two Prime 9 Chain (144L) - Silver Description-9mm Shaft Bar Tape Material Durasoft polymerPrime 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