Crankset and Bottom Bracket Removal Tool — easy, reliable tool for home bike repairs and shop use Key benefits Simple, fast crank arm removal: designed for straightforward removal of crank arms from the bottom bracket, saving time during routine maintenance or upgrades. Protects crank threads: the tool’s reinforced head is designed not to damage crank threads during extraction. Broad compatibility with splined systems: fits 20-tooth splined type bottom brackets commonly used on bikes with a chainset. Convenient for home and shop use: compact and easy to operate for DIY maintenance or professional service. What it does Crank arm removal: removes crank arms cleanly and reliably for inspection, replacement, or service. Bottom bracket access: pulls the crankset clear of the bottom bracket to allow removal or servicing of the bottom bracket and chainset. Thread-safe crank puller: the tool head is built to resist wear and avoid thread damage during repeated use. Key specifications and attributes Compatibility: suitable for any 20-tooth splined bottom bracket standard (the common splined type used with chainsets). Function: crank arm remover, crank puller, and bottom bracket access tool in one. Performance: engineered for dependable extraction without marring threads or crank fittings. Operation: simple to use for both occasional home repairs and frequent shop work. Practical use scenarios Replace chainset: quickly remove crank arms to swap a worn chainset for a new unit. Bottom bracket service: pull crank arms to access and service or replace the bottom bracket bearings and seals. Travel or storage maintenance: remove crank arms for compact transport or to protect components during long-term storage. Basic use steps 1. Secure the bike and remove any dust caps or bolts from the crank as needed. 2. Thread the tool into the crank’s splined interface until seated. 3. Operate the tool per its threaded action to extract the crank arm away from the bottom bracket. 4. Inspect threads and components; proceed with the needed repair or replacement. This tool is intended for 20-tooth splined crank systems and for users performing crankset or bottom bracket work at home or in a workshop.