suport dartmoor intro series 19mm ridehubThe Dartmoor Intro Series bottom bracket is a robust solution for BMX and MTB bikes with Euro, Spanish, or Mid size standards. Equipped with reliable bearings, aluminum cups, and steel spacers, the set includes two spacers for 68mm and 73mm wide shells. Product features: Compatible with Euro, Spanish and Mid bottom brackets Designed for 19mm diameter axles Aluminum bowls and steel washers included Two sleeves included: for 68 mm and 73 mm sleeves