Malossi straight cut (standard ratio) secondary gears for Piaggio NRG/ Typhoon, Gilera Runner/ Ice/ Stalker, Vespa Primavera/ Sprint 50cc 2-stroke scooters.

All Piaggio/ Gilera mopeds other than the Zip already use 13/48 teeth as standard so this will have no effect on the gearing: The straight cut gears reduce frictional losses in the gearbox, at the cost of the straight cut gears being louder than the standard helical gears.

When used on a Piaggio Zip/ Vespa ET/LX: This gear kit is essentially a 'gear down' kit so it will lower top speed on Piaggio Zip whilst giving quick revving acceleration which is the opposite of what a gear-up kit is normally bought for. On a Piaggio Zip the gearing will be reduced by 13%.

Not suitable for Gilera DNA, Aprilia SR Motard/ Piaggio Typhoon (2011-)

13/48 teeth

See here for further reading.

Malossi 679966