The Pf4130 bottom bracket is press fit into 41mm diameter shells that are 86. 5mm wide and mate most cranks with a 30mm spindle to that standard. If you have a BB86 frame and want to install a 386Evo crank or rotor 30mm crank, this is the kit you need. Ceramic Speed bearings are installed in cups. The standard bearing has ceramic cu BALLS and hardened-steel races. The coated bearing has the same BALLS running on hardened-steel races with a 3-micron thick metallic coating making the races harder and smoother, increasing Service life and reducing friction.
Additional information
| Weight | 0.13 kg |
|---|---|
| brand | CeramicSpeed |
| dimensions | 18.8 x 11 x 5.8 cm; 130 Grams |