Red90· Super Moderator
This is why there are 5 gears.... You can choose..... Needing to shift to 4th is not a reason to change final drive ratios.1.2 flatland, 1.4 hills and mountains
There should be two tests.
1) Can you start on a "normal" hill in 1st without undue clutch slippage?
2) Can you use 5th on a flat road?