Race Face combined pinacle technologies to create the Next SL crankset. This exceptional crankset fuses proprietary hollow arm technology with Race Faces proven Cinch technology. The result is something exceptional. The Next SL features interchangeable spiders with endless chainring combinations, on a 30mm alloy spindle for industry-wide frame compatability. The Race Face Next SL is quite possibly the most versatilbe crankset you will ever own.FeaturesCompletely hollow carbon crank armsIndustry standard 30mm spindle, CNC machined from aluminum super alloy that is 20% stronger than AL-7050Removable spider for easy conversion between standardsSpecificationsColor: Stealth BlackIntended Use: XC/Race/TrailSpindle Diameter: 30mmSpider: Cinch Direct MountChainring: 34TCrank Arm Length: 175mmCassette Compatiblity: 10/11-SpeedBB: Includes Race Face Pressfit 92Weight: 445g (32T Cinch)New, Never Used, OEM, This item is exactly as pictured and does not include retail packaging.Race Face