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

BB86 vs BB92 — what’s the difference?

BB92 uses the same 41 mm diameter but a 92 mm shell width (mostly MTB). Measure shell width: BB86 = 86.5 mm (road), BB92 = 92 mm (MTB).

Which Shimano cranks are compatible?

Shimano Hollowtech II 24 mm road cranks, such as 105, Ultegra and Dura-Ace.

Which OEM models do these replace?

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

Steel vs ceramic — which should I choose?

Steel bearings offer the best price-to-value and robust daily use. Ceramic targets lower friction and race-focused efficiency at a higher price. This category focuses on steel options.

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BB86 Steel Bottom Brackets for Shimano

BB86 • Steel • 24 mm

BB86 Steel Bottom Brackets for Shimano 24 mm (Budget Range)

Affordable BB86 bottom brackets with steel bearings for Shimano Hollowtech II 24 mm cranks. Curated to replace OEM press-fit units SM-BB71-41B (105/Ultegra) and SM-BB92-41B (Dura-Ace) at similar or slightly higher price points.

Press-fit 41 × 86.5 mm Shimano 24 mm spindle Daily-use durability Great value

Open the full BB86 guide (what it is, 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 measure your frame or check the manufacturer’s spec before ordering.

Designed for Shimano 24 mm cranks

These bottom brackets are built for Shimano Hollowtech II 24 mm road cranks (105, Ultegra, Dura-Ace). If you need the wider MTB shell (often called BB92 at 41 × 92), verify the shell width first.

Budget-friendly steel bearings

Great value: OEM-style pricing with reliable sealing and durability.
Everyday performance: smooth running for commuting, training and long mileage.
Upgrade path: start with steel; move to ceramic later if you chase marginal gains.

Replacing Shimano references

This category curates steel-bearing BB86 units positioned to replace the following Shimano press-fit models:

SM-BB71-41B — 105 / Ultegra press-fit BB86 (24 mm spindle).
SM-BB92-41B — Dura-Ace press-fit BB86 (24 mm spindle).

For a broader technical overview and pros/cons versus OEM cups, read our guide: BB86 bottom bracket replacement (SM-BB71-41B / SM-BB92-41B) .

How to choose

Confirm your frame: BB86 road = 41 × 86.5 mm. (MTB shells are wider.)
Confirm your crank: Shimano Hollowtech II with a 24 mm spindle.
Conditions: for wet/muddy use, prioritise sealing and serviceability.

Installation tips

Use quality press tools, clean the shell thoroughly, lightly grease or apply the specified retaining compound, and torque the crank to spec. Proper prep is the best defence against creaks.