suport zewnetrzny dartmoor euro ex pro bb ridehubThe Dartmoor Euro EX Pro BB is a high performance external bottom bracket from the Pro series, designed for cranks with a 19mm or 22mm axle. It features lightweight aluminum cups, sealed bearings for increased durability, and tapered mounting hardware that minimizes the need for additional spacers. The bottom bracket is compatible with 68mm and 73mm wide shells the kit includes appropriate sleeves. Product features: External Euro standard Compatible