Bicycle Bottom Bracket Tools
From CoMakingSpace Wiki
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| ToolInfoBox Bicycle Bottom Bracket Tools | |
|---|---|
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| Synonyms: | DE:Fahrrad-Innenlagerwerkzeuge |
| Location: | Bike Lounge |
Overview: Bicycle Bottom Bracket Tools
Below is a technical breakdown of the three specialized bicycle bottom bracket tools shown on the image, organized from left to right as a reference guide for the workshop wiki.
1. FAG Bottom Bracket Tool
- Image Position: Left side (Silver, wide flanged funnel shape)
- Function: Used for the installation and removal of older FAG, Thun, Campagnolo, and SKF cartridge bottom brackets that utilize plastic or nylon cups.
- Technical Details: Features a specific multi-notched pattern that interlocks precisely with the external teeth of FAG-style non-drive and drive-side cups. It is typically operated using a 28 mm open-end wrench or box wrench on its rear hex flats.
2. Shimano & ISIS Drive Splined Bottom Bracket Tool (Black)
- Image Position: Center (Black finish, 20-tooth splined socket)
- Function: Designed to install and remove traditional 20-tooth internal splined cartridge bottom brackets, including standard Shimano, ISIS Drive, Truvativ, and Race Face systems.
- Technical Details: Features a durable black oxide finish and a 20-tooth configuration that slides into the splines of the bottom bracket cup. The rear end is machined with a heavy-duty hexagonal drive, allowing operation via a crescent wrench, socket, or an adjustable spanner.
3. Shimano & ISIS Drive Splined Bottom Bracket Tool (Chrome)
- Image Position: Right side (Chrome finish, 20-tooth splined socket)
- Function: Serves the exact same primary function as the center black tool, acting as a workshop socket for 20-tooth splined Shimano and ISIS Drive cartridge bottom bracket cups.
- Technical Details: Features a polished chrome finish for enhanced corrosion resistance and easy cleaning in workshop environments. It is identical in its interface mechanics to the center tool, providing the exact same universal 20-tooth internal footprint but configured with a different external hex base style.
