Refined rotation
Bearings designed for low drag. Real-world savings depend on seals, grease, load and the condition of the bottom bracket being replaced.
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BB86 Ceramic Bottom Brackets for Shimano
BB86 / PressFit 41 · Shimano 24 mm · Ceramic
A widely used setup.
A widely used setup.
A ceramic upgrade rarely fitted as standard.
BB86 frames paired with Shimano Hollowtech II cranksets remain a very common road-bike setup. Yet production bikes usually come with steel-bearing bottom brackets. Upgrading to a well-designed ceramic unit is a targeted improvement that keeps your existing crankset in place.
CyclingCeramic BB86 41/24 · 2026 range product photo
Ø 41 mmFrame shell inner diameter
86,5 mmRoad frame shell width
24 mmShimano Hollowtech II spindle
Why upgrade from steel to ceramic on BB86?
Most original-equipment steel bearings are selected for their cost, reliability and protection. A premium ceramic bottom bracket puts more emphasis on rotational quality and construction, provided the frame and installation are in good condition.
More than ceramic balls
Machined cups, protective sleeves and assembly quality all contribute. Bearing material alone does not determine performance.
Keep your crankset
Retain your Shimano 105, Ultegra or Dura-Ace crankset and BB86 frame. Choose the correct 41/24 bottom bracket.
Three ways to upgrade a Shimano BB86 to ceramic
Three products currently listed in this category. Two illustrated premium options plus a more accessible Rotor alternative. Prices and availability are shown on the product pages.
Our performance benchmark · 2026 range
CyclingCeramic BB86 41/24
Machined alloy cups, ceramic bearings, a central protective sleeve and a serviceable design. A well-rounded upgrade for performance and sustained smooth running.
Explore CyclingCeramic →
Premium fit and sealing
Bikone DCTech BB86-92 Ceramic
Dual Cup architecture, hybrid ceramic bearings and carefully engineered seals. For riders prioritising precision and protection; our sample weighed 98 g.
Explore Bikone →Shimano BB86: two dimensions must match
BB86 describes the frame shell, not the groupset on the bike. This range requires a PressFit frame shell with a 41 mm internal diameter, 86.5 mm road shell width and a straight 24 mm crank spindle.
Compatible road cranksets
- Shimano 105 R7000 / R7100, Ultegra R8000 / R8100 and Dura-Ace R9100 / R9200 (24 mm spindle).
- Other compatible Shimano Hollowtech II road cranksets with a 24 mm spindle on a BB86 frame.
- Rotor ALDHU 24 / VEGAST 24, only when configured with the 24 mm spindle.
Do not mix these up
SRAM DUB (28.99 mm) and Rotor 30 mm spindles require specific bottom brackets for the same BB86 frame. A BSA or T47 frame is not BB86, even if it uses a Shimano crankset.
If unsure, use the compatibility finder. Even premium bearings cannot fix a frame shell that is damaged, out of tolerance or incorrectly prepared.
Open the bottom bracket finder →Other BB86 configurations
This page is exclusively for ceramic BB86 bottom brackets with Shimano 24 mm cranks. Other spindle types need different models; dedicated categories can be linked here as the catalogue grows.
A sensible choice for everyday riding, mileage and budget.
Compare steel options →For the 28.99 mm DUB spindle, select a dedicated 41/29 unit, not this 41/24.
See DUB models →For Rotor cranksets with a 30 mm spindle, select a dedicated 41/30 unit.
See 30 mm models →Answers before you buy
Is BB86 still widely used in 2026?
Yes. It remains common on road bikes across many generations. Some newer frames use different standards, so verify your exact bike model and year.
Can it replace Shimano SM-BB72-41B or SM-BB92-41B?
Yes, on a compatible road BB86 41 × 86.5 mm frame with a Shimano 24 mm spindle. Always confirm your frame dimensions rather than relying solely on the original part number.
Will ceramic bearings always save 2 watts?
No. There is no fixed gain: it depends on the bearings compared, seals, lubricant, installation and riding conditions. Ceramic is a quality-focused upgrade, not a universal watt-saving guarantee.
Will ceramic bearings eliminate creaking?
Not necessarily. Creaking can originate at the shell-cup interface, from misalignment or from unrelated components. Clean preparation and correct press fitting are essential.
