Monocrome Screw-Fit 41 mm Bottom Bracket for replacement and upgrade of press-fit BB86 and BB92 bottom brackets.  Designed and engineered by Shockcraft to solve fitment, creaking and bearing life issues.

Fits Shimano, RaceFace, FSA etc 24 mm crank spindles.
Fits SRAM/Truvative GXP with optional "Engagement Ring" adapter set.
FIts Mountain Bike frames with 92 mm BB Shell width (incl 89.5 mm with 2.5 mm spacer - purchase spacer separately here).
Fits Road & Cyclocross frames with 86 mm BB Shell width by removing internal spacer.

Installs and removes with an IceToolz 11D3 tool, Park BBT-18 tool or equivalent used for ISIS bottom brackets and crank spiders.

Optional extras (purchased separately):
Installation tools - IceToolz 11D3 tool or Park BBT-18 tool
2.5 mm spacer (for MTB frames with 89.5 mm shell width)

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Heavy duty tool for installing and removing all eight-notch bottom bracket cups, including Monocrome SF41 & SF46, Shimano, ISIS Drive, ISIS Overdrive
Also fits Shimano crankset lockrings
Fits a 32 mm hex socket so a torque wrench can be used

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Heavy duty tool for installing and removing all eight-notch bottom bracket cups, including Monocrome SF41 & SF46, Shimano, ISIS Drive, ISIS Overdrive
Due to this tool having 8 sides instead of 6 it is not possible to use with a socket and a torque wrench

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Replacement bearings and plastic caps for Monocrome Bottom Brackets Also fits BB90/95 & Hope External Bottom Brackets Learn More

Replacement bearings and plastic caps for Monocrome Bottom Brackets Also fits BB90/95 & Hope External Bottom Brackets Learn More

Replacement bearings and plastic caps for Monocrome Bottom Brackets Also fits BB90/95 & Hope External Bottom Brackets Learn More

Application: Monocrome Bottom Brackets ID: 24 mm, OD: 37 mm, W: 7 mm Learn More

Replacement "Top Hat" bearing cover pair for your Monocrome External Bottom Bracket.
These can also be used to fit 6805 bearings into Trek BB90 and BB95 internal bottom brackets.
This allows greater bearing choice.
Fits BSA external MCEBB001, MCEBB101 and MCEBB201.
Fits Screw-Fit 41mm also.

This version is tighter fit to remove any play or knock on worn crank spindles.  It will be tight to install with new cranks.

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2.5 mm spacer for 41 mm press-fit (and Screw-Fit 41) bottom brackets (BB92 & SRAM)
This spacer is required for any frames with an 89.5 mm wide BB shell, unless using a 2.5 mm wide chain guide or BB mount derailleur

ID: 41.3 mm, OD: 44.3 mm, W: 2.5 mm

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