Campagnolo ProTech bottom brackets feature a patented external sealing ring design that protects a strong, resilient fiberglass-charged polyamide central tube from the harmful ingress of water, mud and grit.
Designed specifically for gravel riding and racing to protect against water, mud & grit
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Spindle Interface Type: Campagnolo Ultra-Torque
BB Shell Width (mm): 68 , 73
Bottom Bracket Shell I.D.: 1.37
BB/Frame Interface: English
Defined Color: Black