Triad

Hello! New member here, so please be patient 😅 I've got a few months ago my first trial bike, a 2007 Beta Rev 270. After a few weeks I started having fun on it, but I kinda crashed against a few "limits" of the bike: speed and power. Of course they're not made to be "fast", but I always have to front some km on the road to reach nice places to have fun... and the bike is too slow, to the point of being dangerous. My bike has a Mikuni carb that I'm dying to swap, as it always needs the air screw to be adjusted... and I always hated Mikuni, even when I had KTM supermotos. Anyway, I'd need to make the bike a bit faster/more powerful to not be crushed by cars on the road. Since I want to swap the carb anyway for a PWK 28... would it make sense to get a 30mm instead? I guess I'd lose some throttle response down low but should get some power up top. I already swapped the front sprocket to a Z12... but the bike is slow and there aren't bigger sprockets available on the market (or smaller rear sprocket, 41 is the smallest available). As you can guess, I don't want to turn it into an MX bike, mind you... I have a lot of fun on the bike as is but for "commuting" between home and the nice places, the trip is awful and dangerous. I also tried to ride with more air in the tyres... didn't make much difference, but was worth a try! 😛 Before you ask: the bike is in good conditions, clean air filter, clean carb, good compression. Usually starts with the first kick. Thanks in advance!

Gotta be honest, I have the same bike/year and I really hate this carb. Mine doesn't leak, mind you, but I gotta set the air screw everyday. Carburation, expecially down low, is extremely sensible. I'm considering a few options... Polini makes pretty good PWK clones, a 28mm one would be a perfect match as the 2008 Rev had the Keihin PWK 28 and it was much better than ours thanks to that upgrade.