26th-Apr-23, 03:59 PM
Since my last post I created a little gear calculator with 24.5mm as a fixed size then various 18mm dia spurs to give me the required pinion for 2.6:1 ratio...if anyone else may find this useful
Life is like a box of Slot cars...

![[+]](https://slotracer.online/community/images/bootbb/collapse_collapsed.png)