Engine Cases (Pair, Long, Big Bore, Custom); GY6 short screen 5 x 10 inner tube

5 x 10 inner tube with 90-degree stem fits large frame vintage Vespa scooters and other 10" bikes that use a 3

edge-trimmed

Brand Common Compatible Models Wolf Brand Scooters Blaze II

This racing clutch is not compatible with the stock Honda pulley shaft

Also available in chrome

Engine Cases (Pair, Long, Big Bore, Custom); GY6 short screen 5 x 10 inner tubeScooterworks offers our exclusive pair of Custom Big Bore Engine Cases for GY6 long engines. We machine these in matched pairs ourselves, and we bore them up to 63mm, big enough to fit a 63mm performance cylinder kit. Go big! Pick up a new crankcase gasket while you're at it. Specifications: Matched right and left sides Stamped serial numbers ensure you have a matched set Dimensions: 10"L x 10"W x 4"H Compatibility: 157QMJ based 125cc 150cc 169cc