martyd Posted December 12, 2013 Report Share Posted December 12, 2013 Before I jump in What in the opinion on a 300cc 4rt? Thanks Quote Link to comment Share on other sites More sharing options...
shercoben12 Posted December 12, 2013 Report Share Posted December 12, 2013 well you wont get any grip with it in mud lmao Quote Link to comment Share on other sites More sharing options...
jj65 Posted December 12, 2013 Report Share Posted December 12, 2013 Make sure it's got a bigger radiator, they run hot. 1 Quote Link to comment Share on other sites More sharing options...
martyd Posted December 13, 2013 Author Report Share Posted December 13, 2013 Thanks Shercoben do you no this from experience? jj65 is that right they run hot? The guy that has the kit said only on a long hard road run this happens Dont think i want to buy a rad aswell The 280cc kit seems to be ok? Marty Quote Link to comment Share on other sites More sharing options...
shedracer Posted December 13, 2013 Report Share Posted December 13, 2013 Don't know if you already know, but 300 kits normally require crankcase modification, which is why most people go for a 280 kit. 280 is much quicker and easier to fit, less hassle. Quote Link to comment Share on other sites More sharing options...
jj65 Posted December 13, 2013 Report Share Posted December 13, 2013 Why do you want, need the 300 kit, are you a very good expert or better? I know a very good expert rider that rides a standard engined 4rt and wins most often at club level, on a standard 250. But if you wanted to go bigger, the 280 kit would be more than suffient, without the need to modify the crank cases (which is what I believe you have to do with a 300 kit). Future sell a bigger rad for reason ;0). I'm no expert on this subject, but I know quite a lot 4rt owners, but don't know anyone who has done a 300 kit. (Munch on here is your man, for info) No Grip in mud, well that's debateable, depends on what setup there running really, there are bikes that are a bit better, but if they were c###, no one would be riding them, would they, there are plenty of good clubmen riding them. (It's a shame there isn't someone like Sam Connor or Dan Thorpe riding one next year, as they would show what the bikes really capable of). Is it a bike your buying, or are you moding one you own already? The best mod on an older 4rt is a dual map throttle body, but if you can afford a new bike, buy the new 260, you won't regret it ;0). 1 Quote Link to comment Share on other sites More sharing options...
warby beta Posted December 13, 2013 Report Share Posted December 13, 2013 As a 6'7" 20st decent clubman rider I don't feel I need any more power than my 280 is giving. The only time it is lacking is usually due to having to haul me around. A 250 is much flatter and I wouldn't be confident on some good clubman sections, again that's probably due to my size more than anything. Quote Link to comment Share on other sites More sharing options...
martyd Posted December 13, 2013 Author Report Share Posted December 13, 2013 Thanks for the replies jj65 I'm a avg clubman Just fancied the bling factor more than anything I have just bought a 06repsol used only 3 times since new As you say a 2 stage throttle might be a first option Alougth a 300 cc kit is cheaper lol The temptation of all these upgradable parts is amazing !! Warby beta your 280 what else have you done? Exhausts etc? Thanks Men Marty Quote Link to comment Share on other sites More sharing options...
jj65 Posted December 13, 2013 Report Share Posted December 13, 2013 DMTB is the first thing with a Laia Sanz map, change the gearing to 42/9 or 43/9, put a mitani titanium front header pipe 27mm and mitani titanium silencer (saves over a kg and better smoother power, especially with a DMTB and a 280 kit, oh, and I know where there's a mint set up for sale, if your interested). As it's an 06, you might want to put a mitani clutch in to get a smoother action. Quote Link to comment Share on other sites More sharing options...
warby beta Posted December 13, 2013 Report Share Posted December 13, 2013 I have an s3 ti front pipe and a single map throttle body. Don't know what map is on it, whatever pidcocks supplied with their 280's. Quote Link to comment Share on other sites More sharing options...
martyd Posted December 14, 2013 Author Report Share Posted December 14, 2013 I have an s3 ti front pipe and a single map throttle body. Don't know what map is on it, whatever pidcocks supplied with their 280's. Thanks Warby i have a mitani front pipe and a programmable single stage throttle body Marty Quote Link to comment Share on other sites More sharing options...
martin 305 Posted December 15, 2013 Report Share Posted December 15, 2013 Hi Martyd I have an 06 4rt and have ridden it for about a year and loved it , it has a mitani tit pipe , s3 tit front pipe and a single programable body on it running a soft map and I found it ok . I them found a s3 280 kit on eBay Quote Link to comment Share on other sites More sharing options...
martin 305 Posted December 15, 2013 Report Share Posted December 15, 2013 Hi Martyd I have an 06 4rt and have ridden it for about a year and loved it , it has a mitani tit pipe , s3 tit front pipe and a single programable body on it running a soft map and I found it ok . I them found a s3 280 kit on eBay £160 so it's now fitted !! Wow what a difference bike sounds awesome really deep tone , bottem end seems much smoother less snappy at low revs , at about half to three quater throttle it bites !!!! . I find if you plant your ass over the back gently feed it in it grips better than the standard bike did it's now running a beginner map , but I think the key is the ability to try a map that suits. Your style . I normaly ride easy / clubman so don't need extra power but it had to be done forgot to say am running 41 /9 gearing and I also have mitani clutch , I find I use second gear mostly only first in the tight bits Quote Link to comment Share on other sites More sharing options...
martyd Posted December 15, 2013 Author Report Share Posted December 15, 2013 Hi Martyd I have an 06 4rt and have ridden it for about a year and loved it , it has a mitani tit pipe , s3 tit front pipe and a single programable body on it running a soft map and I found it ok . I them found a s3 280 kit on eBay £160 so it's now fitted !! Wow what a difference bike sounds awesome really deep tone , bottem end seems much smoother less snappy at low revs , at about half to three quater throttle it bites !!!! . I find if you plant your ass over the back gently feed it in it grips better than the standard bike did it's now running a beginner map , but I think the key is the ability to try a map that suits. Your style . I normaly ride easy / clubman so don't need extra power but it had to be done forgot to say am running 41 /9 gearing and I also have mitani clutch , I find I use second gear mostly only first in the tight bits Thanks looking like a 280 kit will be the one Will be hard work to try and find a used one like you !!! I'm on 9/42 Marty Quote Link to comment Share on other sites More sharing options...
warby beta Posted December 15, 2013 Report Share Posted December 15, 2013 Trial enduro direct sell the s3 big bore kits new at quite a reasonable price.. http://www.trialendurodirect.com/products/2_12/S3_MONTESA_4RT_Big_Bore_Kit__471.html 1 Quote Link to comment Share on other sites More sharing options...
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