Töffli / Mofa Ritzel Hinten - Bohr-Schablone

Old chain sprocket on old mopeds need to be replace, this little hepler allows drilling the holes very precisely. 

The problem is that the original sprockets are welded, the replacement parts are usually screwed. This means that we need to drill some holes very precisely in order to mount the new sprockets very precisely on the center of the wheel axis.

This little pattern helps with that, put it on the wheel and drill through the holes.

If you need other versions, let me know. This is the file-name pattern:
“ChainSprocket_BoltCircle_HubDiameter_HoleNumber_HoleDiameter_Version.3mf”
“ChainSprocket_Lochkreis_TrommelDurchmesser_Löcher_LochDurchmesser_Version.3mf”