Aprilia SR50 (Minarelli Engine)
Athena Zuma Gears
$ 109.99
Athena Zuma gears - straight cut, and available in 14/42 and 15/50
Fits all two stroke zumas 1989 all the way to 2011
15 x 50 is a 22% gearing increase!
14 x 42 is a 33% gearing increase!