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1:1 ratio competition straight cut evolution drop gear set for 1275cc engines using A+ gearboxes.


If you are looking for the ultimate for your competition Mini's drivetrain loo no further. The drop gear system is normally a weakpoint of the transverse A-series, and helical cut gears can genrate lots of sideload issues with hard use. The use of a straight cut gear system eliminates sideload and with the upgraded materials used on these gears they are even stronger than factory helical gears! 


This set includes a 23 tooth primary gear complete with new bushes, 30 tooth A+ idler gear, and 24 tooth input gear. These together create a standard 1:1 ratio.


Please note that the primary gear may need to be reamed as the bushings are new and need to be sized to crankshaft. 

Evolution Straight Cut Drop Gear Set - 1:1 Ratio (A+ 1275)


All manual A+ 1275cc engines.

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