A unique bottom bracket type by Octane One. This special external BB for BMX cranks is compatible with all MTB frames with threaded bottom brackets (Euro BB). This solution has similar weight to Euro BB's but offers a lot more durable Spanish BB bearings in external BB cups. Drilled crank axle, strong and light heat treated cro-mo arms. Don’t worry - the chain line is perfect for MTB!
Spec: - compatible with 19mm crank axles - external aluminium cups with two big & strong Spanish BB bearings - compatible with all MTB frames with 68mm Euro BB - weight: ~155g - colours: black
