Truvativ XX 10 Sp BSA Carbon CranksetWhether you're shredding your favourite local trails with your riding buddies or exploring new mountain routes on your own, this 10 speed crankset is engineered for smooth and dependable performance, wherever your next adventure leads you. Truvativ has equipped it with two carbon crank arms, which deliver a fantastic combination of stiffness and strength, without adding any unnecessary excess weight. As a result, the crankset provides exceptional acceleration as you transfer all of your leg power to your pedals.MTB Crankset with X-Glide ChainringsBuilt for all-day epics and day-long adventures in the mountains, this crankset comes kitted out with two X-Glide chainrings for smooth and simple shifting operation. Each chainring features a tough 7075 aluminium construction that's been put through Truvativ's CNC-machining process, which shaves off any excess material while still maintaining maximum strength. This results in a superior strength-to-weight ratio as you charge from trail to trail.BSA Bottom Bracket IncludedDesigned for straightforward installation, this crankset comes complete with a BSA bottom bracket included.Features: Crank Arm Material: Carbon Chainrings Material: CNC-machined 7075 Aluminium Use: Mountain Bike (MTB) Speed: 10 speed Number of Chainrings: 2 Crank Arm Length: 175mm Chainring Tooth Count: 42/28T Bottom Bracket Type: BSA Bottom Bracket Included: YesTechnologies: X-Glide: What Makes it so fast? Traditional chainring geometry forces a compromise between up and down shift locations, none of which have ideal timing. In fact, half of the possible locations are skipped on each crank revolution. The more shift locations you try to incorporate, the worse the timing compromise will be: either your chain jams, causing chain suck, or the chain just fails to shift and runs across the top of the rings until it hits the next shift location. Those days are over with X-Glide. X-Glide is the common denominator that gives XX its unmatched shifting performance. With the X-Glide, all four upshift locations are identical and can be picked up by any outer link. The result? Up and downshift locations have perfect timing for an almost instant shift - even under load.Manufacturer's Part Numbers: 90390210005 / 5056389548195Buy Truvativ Components from Chain Reaction Cycles, the World's Largest Online Bike Store.