Aircooled Monoshocks

As the a/c mon shock forum has gone a bit shall i say boring am hoping this will spark off some fun.. what was the first mono shock trials bike, not a ridgid, was it the legendary ty 250 mono or the JCM 323 or was there other pre production bikes. What year did the ty mono did development I know pre 1984 as one N Berkett was a develepment rider but in 1983 was on a jcm so was the ty all done and off to the next challenge??? we are talking months days not to sure what do you lot think.pretty sure 1984 was the year....I have 323 that was made on the 17th aug 1983 that i think is the first production bike...as th ssdt was the challeng for a bike what was there???

i'm very slowly getting my JCM SR 240 up and running again with a view to eventually selling it, to raise funds for another project for information- i used to ride it in the early 90's and it hasnt been started since then, before my dad died he started rebuilding it , the frame was powder coated, the fibre glass tank seat cover has been repainted, new JCM piston found and installed and new stickers made, unfortunately he became ill and never finished it. its by no means immaculate but doesnt look to shabby!! its now running (thanks to a friend) and i'm going to try it out this week......very excited!!!! does anyone have any idea how much oil should be in the forks, my…

I bought an original 1986 Gas Gas Halley on tinternet. Matey said it was complete......but it wasnt, the silencer was missing I need to fabricate another one to match the original exactly. The body of the silencer will be hard anough to replicate the original . I also need to source some internal baffle pipe which i can run through the centre of the silencer. Does anyone know of a company or person selling any ? Is it available ? It would save me drilling hundreds of holes in a bit of pipe which would be pretty grim Ta

Hi, I have just been looking at a Titanium Front pipe and Carbon Fibre Leg Guard combo for Gas Gas Randonne on the Mitani Website , does anybody know of any Agents in the U.K. or an easier way of getting hold of one without dealing with Mitani direct,Cheers Nick

Hi everyone,Does anyone know where i can get front brake shoes for jcm leleu drums? Measure 120 x 20mm

Hello Does anyone have any idea of the length of an original TY Mono side stand? Any large diagrams/pictures would help as im looking at getting one made Cheers!

Hi, Was NVT175 sold as a trials- or a MX bike? http://cgi.ebay.co.uk/Norton-Villiers-Triu...=item2c535b8901 cheers,

Does any body have any information on the 175 Chapman-BSA which was produced in a small batch, and used the Yamaha DT175mx engine.?Any help would be very much apricaiated, i know there where only around 25 made in total. jh

. have a look at this its bang on a bike up the Eiffel tower we should try this on Blackpool tower. The planing office would have a fitt a bike up the tower oh no no no.I remember this on mornining tv do you lot??? some top names C Cortard works jcm rider and J Correy, the man behind jcm.. Seth 29

Hello all I have just bought an '85 TY250 and want to fit lights. The bike has both coils, but all I can see in terms of powered wiring is one wire that is on the right hand side of the air box. This is giving out 6v, but is the only wire that is available with power. The kill switch and wiring is present, but I cannot find any other wires to power the front light etc. Any ideas?

Hi , just finished the Ilkley Classic trial, which has 85 miles of road work , on my 1990 gas gas 325 air cooled mono . When I was on the road and inbetween sections and stood up the riding position is very uncomfortable because I have to put too much weight on my arms and the only way to take weight off is to ride with bent knees but I find this impossble to maintain for any distance , anybody got any cures? Nick

Hummm I just picked up a ty mono 350 1986 that need tlc ( and love ) but I'm not sure I made the right decision to go for that 350, it seem's that a 250 would have been the way to go. Any advise, I'm very confuse. Guy

I did a bit of trials in the 80's on 70's twinshocks as they were all I could afford at the time and I've not ridden trials since but have done plenty of green laning and the odd enduro. I realise that a very modern bike would probably be the best bet for ease of use but I have no desire to own one.......I just like aircooled traditional looking bikes so will stick with twinshock or aircooled mono class. Would I notice much of a difference between riding an aircooled mono and a 70's/80's twinshock if both bikes were well maintained and sorted? Will I make it easier on myself with a 90's mono bike or is the overall technology between the 80's & 90's bikes not that m…

Hi All. I have just bought one of these. Is there a difference between a TLM 200R and a TLM 200 (do they both exist?)?. The guy I bought it off ran it pre mix at 40:1. What is factory ratio? I run my other bikes at 50:1 - would the TLM be OK at this ratio? It would save me having two batches around. Are there any good websites for info on this bike? I'd like to find out about any potential problems/issues and any easy, cheap worthwhile mods. I'm used to a TY175 and this thing has enormous instant grunt compared to the Yam. Should be interesting. Should I have posted in the Honda section (it did seem to be all about TLR version in there)? Thanks in advance for any h…

Dont quite know how i came to be involved in this one but do you have a Pre95 Air Cooled Monoshock ? We are looking for owners who would like to come along to a test day somewhere to be decided in Derbyshire on June 10th. Your bike will be ridden and appraised by none other than Magical Mick Andrews and hopefully Nigel Birkett and the words and pictures will feature in Classic Dirt Bike Magazine. That is assuming we can get enough variety of bikes to test. So if you have a Air Cooled Gas Gas, Beta, Aprillia, Ty Yamaha, Montesa, Honda, Merlin etc etc etc please please pm me and i will try to collate everybodys details and arrange things. I do let myself in for things LO…

A friend's father has a can-am mono that he might sell. I don't know the year of it. Can anyone one give me any advice when looking at it. He says he has not started it in a couple of yrs. and it has sat most of the last 15-20 yrs. Only starting occasionally. Any problems with the mono can-am's. All I know about them is that they were made by Armstrong in England until 1987 and they had a Rotax motors. I know chassis parts will be difficult to find. Are these bikes competetive with other mono's of the day. Also, what size rotax motors were in these bikes? Thanks for any info you can give me. Cheers, Fergie.

Are all the cables the same for all air cooled yamaha mono's?

I will be possibly looking at a fantic 403 monoshock aircooled drum brakes, as a beginner could I get through a few years of trials, and ridding with the locals and maybe at my first couple of events with this bike. Or is it hard to compete with the older bikes and a waste of time and money (tight) should I save for longer and get a newer bike or if it is in good shape go for it? Do any of you compete with your bikes and do OK? Dan

i have just bought a frame for my ty250 mono it is the later type R frame without all the extra lugs and has the cradle for the rear shock remote. i have noticed the footrest brackets are different on this frame does anyone know where i can obtain some decent wide footrests for this model. Alan

Can you help i have an old jcm 323 trial bike with the TI engine fitted. the clutch is slipping and not able to ride out of 3rd gear, as the bike is one of the first 35 bikes made it has a different clutch fitted the friction plates are more like a rear sprocket than a friction plate, there is a sureflex make on the plate but unable to find a listing for the bike or engine, have contacted them and no answer... have spoken to Joel in france but have no parts left and no part no. I think the bike has been run on car engine oil which has a slip agent in it so will mess up the best friction plates in the world. So have been messing around with spacers on the spring new spri…