BOX Two Prime 9 Chain (126L) - Silver Brand-Truvativ Total System Efficiency (TSE) for

Total System Efficiency (TSE) for greater efficiency and reduced rolling resistance

For tires up to 42mm wide

Compatible with SRAM RED® eTap® and SRAM eTap® AXS shift/brake controls

A sturdy secure set of full-coverage fenders designed to fit more bikes than any fenders in their class

Color Black Tooth Count 34 Drivetrain Speeds 12 Chainring BCD Direct Mount Bosch Designed for ebike Yes Defined Color Black Direct Mount Type Direct Mount Bosch Gen 4

BOX Two Prime 9 Chain (126L) - Silver Brand-Truvativ Total System Efficiency (TSE) forPrime 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