enthusiast-level aluminum wheels for xc/trail.
massively different
our unique wheel design reduces rotational inertia by redistributing mass closer to the hub. the result is improved performance, faster acceleration and deceleration. crankbrothers wheels spin up faster than traditional wheels.
the power of triangles
our twinpair spoke design forms triangulated load bearing structures, providing superior strength and lateral stiffness, with just 24 spokes per wheel.
simple to service
single spoke lengths, replaceable without removing the tire.
ride optimized and tubeless ready
cobalt rims are specifically designed around the lightweight needs and tire widths of xc/trail racers.
| rim material | 6061-t6, smooth weld joint |
| rim finish | shot peen, black anodizing |
| rim width | 21mm | | |
| rim depth | 19.5mm | | |
| spoke material | stainless steel | |
| spoke butting | 2.0 / 1.6 / 2.0 | | |
| spoke length | 166mm | | |
| spoke pins | solid 7075-t6 aluminum | |
| nipple size | 3.2 x 139mm | | |
| front hub material | cobalt, 6061-t6 | |
| front hub bearing | sealed cartridge 6804 (x2) | |
| front hub end caps | 15mm (installed), 9mm (included) |
| rear hub material | cobalt, 6061-t6 | |
| rear hub bearings | sealed cartridge 6903 (x2), 6902 (x2) |
| rear hub end caps | 12x142mm (installed), 10x135mm (included) |
| freehub | 3-pawl, 21T, steel | |
| xd driver | xd driver compatible, available separately |
| skewers | skewers not included, available separately |
| weight : 29” | 1,735g per set |
| weight : 27.5” | 1,650g per set |