JB - You've made me wonder about the difference between a 4T and a 2T for trials. Both your bikes are 250s, in what conditions would you prefer one to the other, and why?
TIA.
Well Paul
The Yamaha is a 1990's bike, so 30 years old and not as svelte as the modern Beta in post#1 and weighs a bit more
However the same Yamaha engine was used up until 2010/11 in the Scorpa, so the engine is great with a big flywheel and loads of grunt/torque and will pull from tickover, whilst finding grip in mud or rocks
The TYZ induction roar, is like no other trials bike and it's seductive
I guess it's favourite terrain is rocky stream gullies and big climbs, it's a bit wide for nadgery, tight going and although 30 years old, they still ride TYZ's in the Scottish, even up to present day, last year (there were 2 in an entry of over 250)
Suspension is excellent, even compared to today's bikes and it's only 5 kg heavier than the Honda and weighs in at 79kg
I love riding it, although I have upgraded the rear shock to an Ohlins and fitted a better front AJP caliper, to the front brake
Forks are stock and are air/oil
The Montesa/Honda 4RT is altogether a different beast, mine's a 2007/8 250cc, but the bike is virtually unchanged barring a 260cc and 300cc engine in today's bikes and slight variation to suspension brands
It's a beautiful bike to own, quality build etc and is pretty trick in components/technology - efi and no battery etc
However it's not easy to ride in mud and it takes a 'committed' technique to ride them and will easily 'spin out' on muddy climbs, plenty of revs and burn through stuff, but it's not easy to master to get on with
I can't get the best out of it, as i don't ride it enough to learn/master it - I guess again it's happy in streams and rocks, where I find it easiest to ride, as the suspension is one of the best, on any Trials bike
I do get better results on the Yam 2t though, as it's easiest to ride for me...........but I wouldn't sell the 4RT as I have had it from nearly new and it's ace