Would a gilera runnner 180 with a 172 malossi head be faster than gilera runner 125 with 172 malossi head ???
Re: Whats faster ? You can't fit a 172 head on a 125.. Do you mean cylinder kit? Please make the title of your topic relevant.
Re: Whats faster ? The 180's have longer gearing as standard so the 180 would be able to get to a higher speed. A 172 on a 125 would produce more power however as the 125's have more primary compression due to the 180 cases being bored out slightly to fit a 180 kit.