KTM revealed its new 250cc four-stroke engine that will be used in the Moto3 World Championship which is set to replace the 125cc class in 2012.
The single cylinder engine is all new and not a repurposed motor from KTM‘s 250cc offroad engine portfolio and is said to weigh just 55 pounds.
Official specs were not released, but Moto3 regulations dictate a maximum bore of 81mm, a rev limit of 14,000rpm. Pneumatic or hydraulic valve systems are not allowed and the valve timing system must be chain driven. Continue Reading »