Hey. Good to hear that you like trials and want to get a trials bike. www.tartybikes.co.uk www.selectbikes.com www.trialmarkt.de - german site, good parts, very very good service, not so expensive either I starded out on a 26" bike and loved it very much. I don't know if you have been doing some street/dirt/freeride biking before, but I think that a short 26" frame will fit you pretty good. The Onza T-Rex is a really good starter bike. Not to expensive and you get pretty much for your money. I used to ride street before i started with trials. The 26" bike I've been riding lately is a BT Ninja 365 (awefull bike ). One I tried a Onza Zoot (24") and that's the best bike I've ever been on. I don't know how the 20" bikes are like because I've never tried one, but I believe that they would be too short. Then you got the Echo Control (short). Best bike ever. Not very cheap, but insanely good If I should recomend a bike for you it has to be the Echo Control, but that's pretty expensive. The 24" Onza Zoot is also a bike you could think about. That one is even better than the Control, but I like 26" better so I stick with the Control. Hope this helps As ash-kennard says: Don't ask on a public forum. People are so different and have very different oppinions. The best way is mabye to ask some people to have a test ride on their bikes or go to a good bikestore and try some bikes there and ask them for advide. Again, Hope this helps