The strength and beauty of carbon comes in the availability and reliability of aluminum. Easton EA90 aluminum cranks bring everything their carbon sisters do, but with a little more weight. The strength, design, workmanship and everything else has been preserved. First of all CINCH can be mounted with single gearbox or with a sleeve for double gearboxes. This gives these cranks great variability and the ability to be used on any bike. That is why the cranks are only supplied with an axle. The converter is ordered separately and assembled as a kit in a specific dream specification.designation: ROAD/CX/GRAVEL/TRI Length: 170/172.5/175mm For dual gear variants: 47/32, 46/36, 46/30 53/39, 52/36, 50/34, W/ REMOVABLE SPIDER For single gear variants: 38T, 40T, 42T, 44T, 46T, 48T, 50T Weight: 534g 172.5mm W/O RING OR BB For centre compounds: BB86, BSA 68mm, PF30 68mm, BB30 68mm, BBright, 386Evo Material: EA90 ALUMINUM Finish: MATTE BLACK ANNO