i'm riding 30 miles a week on my roadie and doing 2 nights in the gym every week, has had to real benefit to my riding what so ever although i am a bit more aggressive with riding, it's hard to tell with strength if it's making a difference, or your just pushing your ability cause you want it to seem like it's making a difference. i don't ride enough to actually know though. i seem to be going bigger more often, but usually i'm put off by the fear than my abilities. trials isn't just athletics, you could be as strong, light and flexible as f**k, but if your not comited or afraid of pushing yourself, or learning new moves, you'll be shit.