Huasheng 139F 39CC 4 stroke OHV Engine Ride on Lawn Mower ESKY Scooter Bike Bugg thumpstar 1cm (81mm) Diameter of Centre

1cm (81mm) Diameter of Centre Hole approx 2

Brand New 10 X BPT L7T Spark Plugs Fit 49cc 2 Stroke Engine Mini Kids Dirt Monkey PIT Bike Quad ATV Pocket Rocket Chopper Bike

Brand New Angle 42mm Foam Air Filter Cleaner Fit PIT PRO PIT Bike Trail Bike Dirt Bike Thumpstar RED

250 r/min Idle speed 1500 r/min

11mm SPECIFICATION of LARGE GEAR   21T / 61T

Huasheng 139F 39CC 4 stroke OHV Engine Ride on Lawn Mower ESKY Scooter Bike Bugg thumpstar 1cm (81mm) Diameter of CentreSKU: ENGINE 139F Brand New 4 stroke 39cc 139F OHV Engine for Motorised Push Bike Gokart Ride on ESKY Scooter DISTANCE BETWEEN NEAREST MOUNT HOLES(centre hole to centre hole) approx 70. 05mm DISTANCE BETWEEN CROSSING MOUNT HOLES(centre hole to centre hole) PCD approx 99. 39mm