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

The MyChron is one of the best tools a kart racer can use to find your laptimes

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

Ideal for Briggs Mini 91 XL Motor

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.