Bicycle Bottom Bracket Adjustment Tool for Thun BSA Zumba
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This tool is used for adjusting an eccentric bottom bracket on a belt-drive bicycle. Loosen the bolts on the bike first!
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Model information
- Source
- Printables
- Category
- Outdoor Sports
- License
- GNU General Public License v3.0
This serves the same purpose as SPA-1 Pin Spanner. It fits:
Canyon Commuter 5 w/Thun BSA Zumba eccentric bottom bracket.
Of course, you must loosen the bolts on the bike that secure the bottom bracket before you can adjust it.
It uses a 6mm screwdriver to add leverage and 5mm bolts to withstand the force. I printed it in PETG and it didn't show signs of breaking
You can see my OnShape design document here: https://cad.onshape.com/documents/e6690e4cadccfed3286bbe54/w/8f8ef8cd0fabcd1f6ecbcdb4/e/4b3d5f209572a244a71a1e61?renderMode=0&uiState=66b53293c8d8d0694dbe513a
You can see the video of how it's used here: