CeramicSpeed ALPHA Shimano Press Fit BB86 Bottom Bracket

CeramicSpeed ALPHA Shimano Press Fit BB86

The CeramicSpeed ALPHA Shimano Press Fit BB86 bottom bracket is a premium component engineered to deliver smooth rotation, reliability and long-lasting performance. It is designed for frames using the Press Fit BB86 standard and cranksets compatible with a 24 mm axle, including compatible Shimano road cranksets.

High-performance ceramic bearings

The bearing system features grade 3 silicon nitride ceramic balls paired with hardened stainless-steel races. This combination is designed to promote smooth rotation and reduce friction while maintaining high standards of durability.

Protection against moisture and contaminants

CeramicSpeed's custom-engineered seals and precision dust covers help protect the bearings from external contaminants. The manufacturer claims up to 500% better moisture protection compared with its stated reference test conditions.

Lightweight construction and installation

The cups are made from 7075 aluminium alloy, combining strength with low weight. Compared with the previous generation, the updated design delivers a 10% weight reduction and simplifies installation through its spacer tube configuration.

Technical specifications

• Model: CeramicSpeed ALPHA
• Discipline: Road, triathlon and track
• Frame standard: Press Fit BB86
• Frame shell diameter: 41 mm
• Frame shell width: 86.5 mm
• Crank axle compatibility: 24 mm
• Bearings: Grade 3 silicon nitride ceramic balls
• Bearing races: Hardened stainless steel
• Cup material: 7075 aluminium alloy
• Manufacturer's stated weight: 78 g
• Colour: Black
• Warranty: Lifetime, subject to the manufacturer's terms and conditions

What's included

• CeramicSpeed ALPHA Shimano BB86 bottom bracket
• 5 ml UFO TECH All Round bearing grease
• CeramicSpeed decal

Check compatibility before purchasing

This bottom bracket is designed for frames with a 41 mm Press Fit BB86 bore and an 86.5 mm shell width, paired with a crankset featuring a 24 mm axle. Before purchasing, check your frame's bottom bracket standard and compatibility with your crankset.