BSA-ROAD-24 for Rotor 24mm cranks This bottom bracket fits a Rotor 24mm crank on a classic BSA threaded road frame. For road bikes, choose road seals, for CX and commuter bikes, or if you frequently ride on wet roads, choose cross seals. CROSS - $199.99 ROAD - $199.99 $199.99 Add to Cart   This product is sold out.