If you want to try out trials ,i wouldnt throw £400 straight in. I think a well set up secound hand onza t-pro would do the job well.(which should only cost £150-£200) But on the other hand a second hand bike could have a bad history, dont know if its bodged and worth £2.50. so a secound hand t-pro or a brand new onza t-bird ,i think would be the way to go , hope this helps. adam