hi everyone im new here the site and forums look great. like most you here i am a two stroke nut. anyways i was wondering if there are any physical differences between the mc28 and mc21 engines. also i was wondering if anyone has one of these engines for sale as i am looking to buy one to start my supermoto project. anyhow what do you guys think of say an nsr300 supermoto 70bhp and 105kg anyone yum yum.

cheers juan...