What are the rules for racing an e-mountain bike?

Question

Accepted Answer

From the 2026 AusCycling Mountain Bike Technical Regulations, Section 7: Who: E-Mountain Bike events are open to riders aged 19 and over and include Masters categories. Formats: cross-country and Enduro formats only, with the details set in each event's technical guide. Motor: an engine of maximum 250 watts, assisting up to 25km/h, with pedalling assistance only. Start-up assistance of up to 6km/h without pedalling is allowed. Bikes must be commercially available and of mid (crank) motor format only. Wheels and gearing: wheels at least 26 inches, and a maximum gearing roll out of 9.0 metres. Cut-off: assistance must cut off when the rider stops pedalling forward, with a cut-off distance of no more than two metres. Weight: the drive unit's maximum weight is 3.1kg, and the battery's maximum weight is 4.5kg and must conform with UN3480. Battery: riders can only use the battery in place on their bike and cannot carry an additional battery during the competition.