booma

Why wreck a good air cooled mono, after all there is a class for them to ride in

I used a gasgas tubeless rear wheel for my ty175 but was using the original hub which is 36 spokes (see fun in the garage yam forum)Malc Simmons from Southern wheels is building Honda tlr hubs with excel tubeless rims, these rims have the flange in the middle like the montesa 4rt rear wheel, I assume you are using the mono rear hub with "Z" spokes

Welcome aboard, twinshock trials are great fun to compete in so many to do around the country hope you have great fun restoring your bike and have just as much fun in riding it

Hi Mate, welcome aboard the trials central forums, hope your Fantic is taking shape and your riding is feet up in 2012, what part of the world are you from

looks like a standard ty175 frame with modifications, rear shock top mounts moved, lower frame rails removed (hard to tell from pictures)the tank and seat unit is a Sammy Miller one

Evil Knievel seat cover !!!! I have been called a stunt rider before, well at least I thought that's what he called me but my hearings not great these day's and my eyesight is pretty poor to but then you can guess that by my choice of colours, no work has been done on the engine and the rear rim is a tubeless from a gasgas,the seat is original just recovered looked much smaller when it was black I will probably make a smaller one, I never rode the bike before I done the work so will have to see how it performs, had one years ago and was pleased how that went so this should be ok to, I only ride the twinshock routes down south eastern centre and the Sunn Inn 3 day trial was thinking about riding the Miller rounds next year so maybe the big seat will be comfy on the road

cheers mate, hope your ty 250 turns out as you imagined it, its great fun doing up old bikes, i've had at least 500 views but only 3 replys, what a bunch of ****ers

Yep, complete front end from a Montesa 247

in the beginning and almost finished, still a little more to do as the eagle eyed will notice

I have now found a supplier in the UK at an excellent price also spoke to Birketts and they do a plastic carbon copy 1 as well for

excellent many thanks for your quick response now where can I buy 1 in the UK

does anybody else sell these other than Mr Birkett, I know the ones he sells are real carbon fibre thats why they are

Hi Cliff, did you get an entry ?? if not speak to Les Matton from the Gravesend Eagles as 1 of the guy's has dropped out from this years event so their is a spare place in the van and a warm hotel room to stay in at the Crown pub\hotel his details are on the nktc site if you haven't got them already or if your riding our trial on sunday 28/03/10 @ Betchworth speak to him their

Just like to say thanks for all the positive comments on my recent project their will always be bits'n'bobs to improve on as time goes by, I hope that this has sparked a few of you to build something similar or re-kindle a dorment project, good luck to you all Booma ps if anybody wishes to use\save the photo's for any reason then you have my full permission

no idea of the weight feels similar to my old Yamaha ty250 twinshock as for the gearing it has a 10 tooth front and a 48 tooth rear running a 520 chain, being a Montesa rear wheel it seems its either a 44 tooth or 48 tooth or have 1 made special, I found the the gearing very low which is how I like it, 1st gear would be good for very tight full lock sections in dry conditions, 2nd was good all day in the very wet/slippery conditions perferct for the nadge and then give it some throttle for a short or long climb, the engine pulls 3rd from standstill for open sections and also good for very long climbs, I have extended the clutch arm by 10mm giving a very light feel, the bike is happy running on tickover clutch out in 1st or 2nd gear, its been about 3 years since I last rode a 4 stroke (honda tlr200) having changed to a Yamaha ty250 and now riding a Fantic 200 so it will only take a short time for me to re-adjust to the 4 stroke riding style, on the whole I am very pleased the way the bike looks and rides the power is nice brakes\suspension\handling is excellent and the exhuast note is perferct very similar to a Montesa 4rt

took it out today for its 1st outing to Betchworth quarry in Surrey, a wet practise day but the bike gripped really well, I am really pleased the way its turned out and its rides and sounds excellent, I built the bike because I have own 3 Honda tlr's over the years and now riding a Fantic 200 but fancied going back to 4 stroke but not Honda so I came up with this idea, its a standard Montesa 247 rolling chassis fitted with a 1978 Kawasaki Kl250 engine the geometry is standard, I can see no reason why I could not ride it in any twinshock round its not a tricked up bike just a Montesa with a different engine from 1978

a pic from the other side the stand I made from the old handlebars oh and the exhaust doesn't blow on my leg

no mods to the engine other than lighten the clutch by extending the arm will take some better pics with a real camera when I give her(KT) its 1st outing, will be riding down here in the south of England most of the time gonna give the exmoor 3 day trial a miss this year but might try some Miller rounds for the 1st time hope to do the 2 day Scarboro trial begining of July a favorite of mine and the Sun inn 3 day trial if its still running

Well its like this, the engine is from a 1978 KL250 trail bike and the rolling chassis is a 1973 Montesa cota 247, after fitting the engine in the frame I then had to make a new alloy petrol tank and airbox, stainless steel front pipe made from a selection of bends silencer is a bought item but modified to fit frame, its sounds excellent not hollow like the Honda tlr more like 4RT, the engine is using the original carb keeping things simple, I cut the fibreglass petrol tank out leaving me with an outercover which I have painted and had decals made then I flattened it all down then lacquered it,I made a new seat base then glued on some foam then glued on the vinyl cover, the frame is powder coated gloss black, the footrests are control type lowered and moved back the rear brake is now on the right side, and the swingarm has been modified for the chain to run down the lefthand side, the kickstart has been reworked to wrap around the engine case giving clearance when kick starting to miss the footrest, its been great fun doing this project and looking forward to riding it very soon

well what can I say hmmm thought I would leave the comments from you guys

Nice 1 bo, the genuine ones are the best,

To Honda pants, sorry to hear your pc went tits up, I copied and pasted the link in from the photbucket website, my laptop works fine here but I always feel that somebody is spying on us all !!!!! did you see the pic of my Yam ?? or gave up the hunt because of the problem Just change the link hope this has resolved the problem

Yes its very nice but I like to look at mine at least once a day

check out this picture of my modified ty250

I fitted a KTM 200 kickstart on my TY250 I had to weld it on to the Yamaha knucle so far it has been trouble free would post pic but I think trials central has changed the way you insert photo's