Campagnolo Pro-Tech™ BSA Bottom Bracket S3-Size-12Spd Thin rubber undertoe

Thin rubber undertoe

J3 Bracket and J2 Bracket

BSM-11L: Guardian Large

dirt and algae without the need for a cover

You may need additional spacers depending on your brand crank

Campagnolo Pro-Tech™ BSA Bottom Bracket S3-Size-12Spd Thin rubber undertoeCAMPAGNOLO PRO TECH BSA BOTTOM BRACKET The new Ekar bottom bracket is designed specifically for the rigors of all road and gravel riding and racing. 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 stainless steel bearings which are attached to