Damn, you were right about being 110% sure. I was 90% sure I had a 10 tooth drive gear and it turns out I have a 13 tooth drive gear.
Which would require a (nonexistent) 36 tooth driven gear. So I have to change the drive gear anyway. After it only took 10 minutes to swap the driven gear, I knew this couldn't be that simple!
Which would require a (nonexistent) 36 tooth driven gear. So I have to change the drive gear anyway. After it only took 10 minutes to swap the driven gear, I knew this couldn't be that simple!