It features the robust double-protection of Pro-Tech a patented external sealing ring design protecting a strong, resilient fiberglass-charged polyamide central tube from the harmful ingress of water, mud and grit. The bottom bracket mates with the external...
Bottom bracket standards might as well be a four-letter word in the bike industry. Always changing, never cross-compatible, and constantly causing headaches as we fumble through adapter cups and aftermarket pieces to try to carry your crankset from bike...
