hi all. i have had my 4rt for 3 years now and i must say its the best bike ive ever had, brilliant fun totally reliable and puts a smile on my face every time i use it. never had a problem finding grip as the addict says the irc tyre seems to work well with the 4rt in muddy conditions and a michelins great for rocky streams and in the dry. the biggest problem i had was stalling the bike when it was new ha ask the addict as he was there to watch my nice trips over the bars. a change of gearing 9/42 or 43 and faster tickover cured the problem. my bike has been used twice a week sometimes more if im in the good books since new and each session a min of 4 hours, the engine is as strong now as it was new which is more than can be said for any two stroke. while on the subject of 2ts i recently tried my friends beta evo,s a 250 and 290 on a muddy climb the mont i could wheelie out the top of the climb the beta,s i failed miserably each time, had to give them back in the end before they got damaged. im not dishing the beta in any way just trying to say if i ever went back to a 2t i would have to change my riding style to suit. WIEGHT PROBLEM with showa suspension front and rear the best on any trials bike i really dont notice the bike is any heavier to ride compared to any thing else although putting the bike in the van or stand at the end of the day its a bit of a lump conpared to my lads 300 gasser. RELIABLE in the 3 years i have owned bike no problems replaced rear suspension bushes once and just the usual pads chain sprockets etc + oil and filters. NOISE fitted mitani silencer bike runs even better less engine braking and softer quieter noise. as you can probably tell i am a montesa 4rt fan through and through i agree they are to exspensive but not looking so bad now when you look at new gasser racing