- Crank Arm Length: 170mm - Interface: Square - Position: Left

- Adapts American/Pro BMX frames with a non-Threaded 51.3mm (2.02") i.d. bottom bracket shell to accept English-threaded bottom bracket & crank applications - CNC-machined aluminum with three steel connecting bolts to prevent independent rotation

- Crank Arm Length: 175mm - Interface: ISIS - Position: Left

Crank left arm, Blaze Powerspline, 175mm, pitch black

TruVativ Crank Arm Fixing Bolts - Monocoque carbon crankset with hollow-arm design - FSA Mega Tooth chainring design greatly improves chain retention - FSA BB392 compatibility allows use in nearly any frame - Bottom bracket not included

TruVativ's Stylo All Mountain Guard is all-mountain chainring protection with style. This 4mm thick aluminum guide is 4 bolt, 104 BCD compatible.