Adjustable Cup Bottom Bracket Remover Tool

thingiverse

Adjustable-Cup Bottom Bracket Remover Tool ==================== ### for vintage bicycles ranging from ~1980´s to mid-1990's This set of tools is designed to extract the adjustable-cup side (with or without spindle in place) of an old-style bottom bracket usually found in bicycles from the 80´s and 90's. These types of bottom brackets can be a pain to remove, especially when corroded. ### Tool Design v1: 1/2" socket & 36mm open-end wrench compatible v2: 36mm open-end wrench compatible with round hole for spindle This design uses standard 2.2mm (9/100") diameter steel nails found in most hardware shops as contact points with the extraction holes of the bottom bracket cup. Due to the small surface area of the extraction holes, steel nails are required as they take up most of the forces and distribute them throughout the printed material. Minimal assembly and cutting is required. **Disclaimer: Wear eye-protection. I am not liable for any potential injuries or material damages while assembling or using the tool in any way, shape or form. Use on your own risk.** ### Assembly 1. Source 6 2.2mm (9/100") steel nails 2. Slide them into the holes. Heat them with a lighter if necessary to push them in. If they are a loose fit, use some glue to keep them in place. 3. Cut the nails evenly ~3mm from the top of the tool. 4. Test fit the remover tool to your bottom bracket and sand the nails down if necessary. 5. Remove your old Bottom Bracket ;)