BB86 is a press-fit standard with a 41 mm shell inner diameter and an 86.5 mm shell width for road frames. Always confirm your frame’s spec before ordering.

BB86 vs BB92 — what’s the difference?

Both use a 41 mm diameter. BB86 shell width is 86.5 mm (road); BB92 is 92 mm (mostly MTB). Measure your shell width to choose correctly.

Are these compatible with Shimano 24 mm cranks?

Yes. They are built for Shimano Hollowtech II 24 mm road cranks such as 105, Ultegra and Dura-Ace.

Which OEM models can these replace?

This subcategory targets ceramic-bearing BB86 units intended to replace Shimano SM-BB71-41B (105/Ultegra) and SM-BB92-41B (Dura-Ace). See our guide: https://www.velo-perso.com/en/content/24-bb86-bottom-bracket-replacement-sm-bb72-41b-sm-bb92-41b

Why choose ceramic bearings?

Ceramic bearings can reduce friction and improve longevity when installed and serviced correctly, with enhanced sealing on many models. This category focuses on ceramic BB86 options for Shimano 24 mm.

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BB86 Ceramic Bottom Brackets for Shimano

BB86 • Ceramic • 24 mm

BB86 Ceramic Bottom Brackets for Shimano 24 mm (Performance)

BB86 bottom brackets with ceramic bearings for Shimano Hollowtech II 24 mm cranks. Curated to replace/upgrade OEM press-fit units SM-BB71-41B (105/Ultegra) and SM-BB92-41B (Dura-Ace).

Press-fit 41 × 86.5 mm Shimano 24 mm spindle Low friction Enhanced sealing

Open the full BB86 ceramic guide (benefits, how to choose, install tips)

What is BB86?

BB86 is a press-fit standard with a 41 mm shell I.D. and 86.5 mm shell width for road frames. It’s common on performance bikes from Canyon, Giant, Scott, Lapierre, Bianchi, Cube, Ridley and BMC. Always confirm your frame before ordering.

Why ceramic?

Efficiency: reduced friction when installed cleanly with proper lubrication.
Longevity: high-grade races and cages; stable at higher speeds.
Sealing: brand-specific seals optimised for intensive road use.

Compatibility & use

Built for road Shimano Hollowtech II 24 mm cranks (105, Ultegra, Dura-Ace). If your frame is the wider MTB shell (often called BB92 at 41 × 92), verify the shell width first.

Replace / step-up

SM-BB71-41B — 105 / Ultegra level (24 mm, press-fit BB86) → moving to ceramic = efficiency upgrade.
SM-BB92-41B — Dura-Ace level (24 mm, press-fit BB86) → ceramic focuses on performance/longevity.

For the technical context and alternatives, see: BB86 bottom bracket replacement (SM-BB71-41B / SM-BB92-41B) .

How to choose

Frame: BB86 road = 41 × 86.5 mm; BB92 (MTB) = 41 × 92 mm.
Crank: Shimano Hollowtech II with a 24 mm spindle.
Conditions: for frequent rain/mud, prioritise versions with reinforced seals and plan routine service.