Hi All,
Still strugling with this, as I have no clue what my internal ratio is, and it seems like I'm not going to find out, I'm working on tyres fitted to my Tractor (L4630).
I have the following: Turff Tyres Front: Bridgestone 29 x 12,00 - 15 R/C: 86 Inches; Rear: Bridgestone 475/6/D20 R/C...