Gear Up Kit 15/41 Malossi Spline 125-180cc 2T
£80.00
Earlier gearboxes usually spline fit such as early typhoon, skipper and hexagon.
15/41 on 125 primaries is about the best all round gearbox in my opinion. Its a bit taller than 180 gearing. 12-13' wheels capable of 100mph easily with the right setup and tune. While 10' wheels tend to need more gearing, 180 primary with 15/41 secondary is my favourite.