13 | Rotax Water Pump Pinion Engine Oil this helmet's smaller stature alleviates

this helmet's smaller stature alleviates interference with head and neck devices on the smallest of drivers

which is more than enough fuel for most kart engines

complete in neat packaging

970mm axle width allows for maximum track width while still using narrow Kid Kart hubs and wheels

Note: As of 02/02/2021 each ceramic bearing will come with (1) set of replacement dust covers in case you want to service your bearings

13 | Rotax Water Pump Pinion Engine Oil this helmet's smaller stature alleviatesWater Pump Pinion by Rotax Max Engines. This pinion gear drives the water pump impeller to cycle water through the crankcase. Noted as part 13 in the diagram, this plastic gear is very important for properly driving the water pump. Made out of plastic, this gear can break from time to time in cold weather.