During last weekend's Motegi MotoGP round, the Grand Prix Commission - Carmelo Ezpeleta (Dorna), Ignacio Verneda (FIM), Herve Poncharal (IRTA) and Takanao Tsubouchi (MSMA) - agreed upon the following technical regulations for the new Moto3 class.
Moto3, which will feature 250cc four-stroke motorcycles, is to replace the 125cc (two-stroke) World Championship from 2012.
The full regulations run to seven pages, but a summary is shown below
• 4-stroke reciprocating piston engines only.
• Engine capacity: maximum 250cc.
• Single cylinder only.
• Maximum bore size: 81mm. Oval pistons are not permitted.
• Engines must be normally aspirated. No turbo-charging, no super-charging.
• Crankshaft speed limited to maximum: 14,000 rpm.
• Pneumatic and/or hydraulic valve systems are not permitted.
• Valve timing system drive must be by one chain.
• Variable valve timing and/or variable valve lift systems are not permitted.
• The engine is defined as the complete engine including intake system (throttle body, injectors), and one complete transmission.
• The maximum price of the engine must not exceed 12,000 Euros. No optional parts or service contracts may be used to circumvent this price limit.
• If the engine is sold as a base unit plus 'tuning kit' then the total price of original engine & kit must not be more than 12,000 Euros. The base unit manufacturer is considered as the engine manufacturer.
• In order to ensure this price limit, any Team competing in the race will be granted the right to buy the engine used in the race from another Team, at the end of the race for a fixed price of 12,000 Euros (details TBA).
• Each engine manufacturer must undertake to supply sufficient engines and spare parts to supply 15 riders per season, if requested, and is responsible that the same amount of tuning kits (if any) are available, regardless where the tuning kit comes from.
• For a manufacturer entering the Moto3 championship for the first time, the minimum engine supply requirement will be 8 riders during that first season only.
• The minimum supply number may be comprised of complete motorcycles or separate engines.
• This minimum supply applies to each separate engine specification offered by the manufacturer.
• Each engine manufacturer must submit a price and lead-time list of all the parts of the engine (which are considered the 'stock' parts) for the season for approval by the Organiser and may not charge more than these published prices. Approval is based on the prices and lead-times being in line with current market norms for these parts and technologies.
• In the event of engine updates or upgraded parts being developed, these must be made available to all customers at the same time, and respecting the price limits described.
Inlet, Fuel System & Lubricant
• Variable-length inlet tract systems are not permitted.