Campagnolo Pro-Tech Bottom Bracket for BB386 86.5x46

The Campagnolo Pro-Tech Bottom Bracket for BB386 86.5x46 is built for gravel riders who want clean, consistent power transfer without sacrificing durability in demanding conditions. A fiberglass-charged polyamide central tube shields the internals against water and mud ingress — protection that matters when you're hours into a ride on unpaved roads.

External stainless steel bearings attach directly to the crankarms, keeping maintenance straightforward and reducing the need to pull apart the entire assembly at service intervals. An external sealing ring adds a further layer of protection from the elements, designed to keep contamination out where it would otherwise cause the most wear. This bottom bracket is built around the BB386 standard, fitting frames with an 86.5x46mm shell.

Campagnolo Pro-Tech Bottom Bracket Specs at a Glance

• Standard: BB386 (86.5x46mm shell)
• Bearing type: External stainless steel
• Central tube material: Fiberglass-charged polyamide
• Sealing: External sealing ring included
• Intended use: Gravel / off-road riding