Twinshock

I was doing some research, on something else, in the attic but came across this. I assume somebody's wife was called Susan but can't recall what year this would have been - has anyone any recollection of the history of these machines? Described as "competitive" but, strangely, the twinshock class is not awash with them now

First round for 2018 is this weekend at PlasOnn Farm Selatyn , run by Aqueducts, thought I might have a day out and go and have a look, suss it all out So if you see a slightly over weight old git with a silly hat on, its probably me

How might the Montesa 348 compare to a similar period Bultaco, is the 348 a good bike to own and ride?

I believe that the forks fitted to Bultaco, Montesa and OSSA were made by either Betor or Telesco but which suspension company supplied each bike maker does anyone know?

Hi guys, I'm after some advice on anodizing wheel rims. I've got a pair of good condition old rims off a early Gas Gas I believe, the rear is tubeless but is the older type with the spoke nipples through the rim. The rims were a dull silver colour as common on most bike of that era. I took them to a small local Anodizing company who reversed the anodizing process so I could get the rims polished. They now are nice and shiny with no scratches. I took them back to the anodizing company to have them done black, I asked the knowledgeable gentleman to HARD anodize them but he was very reluctant and advised against it due to a high copper content of the…

How easy is it to fit a C15 rear shinging arm to a Cub? Or another way to change the rear end to take a 400 tyre.. Thanks

Never rode all twinshocks , just curious what is the best twinshock bike frame geometry/handling wise.. Yamaha TY Suzuki Beamish Fantic 200 Kawasaki KT Bultaco Montesa Cota Ossa MAR Honda TL may be more. you can suggest . Regards

Three weeks ago, while practicing on my newly minted TY, I managed to bottom out the forks. My first thought was that I've been eating too many mince pies, but then I figured it's time to sort the front end so off to the Majesty website I went ... One week later I tackled the same spot (moderate downhill with a 18" drop, then more downhill), and the difference is night and day! It felt like I was being gently lowered down the drop by little cherubs. Now, this was during a trial, and over all the bike felt far more ballanced with the Rock Shocks on the back and it did have a big positive effect on my confidence. Less stodgy, but harder to wheelie for some reason. …

Both the TY and Cota throttle cables are a little shorter than optimal (ie. route them tidily and you get some revs at right lock - is there anywhere I can shop for cables by length? Or am I stuck using a universal cable kit? IIRC the TY250 throttle cable is longer than the 175, but I don't know be how much - it only needs one more inch

So, the Cota has a 28mm OKO carb on it (the original carb came in a bix of bits, and has a big chunk missing out of it), and I have a couple of questions ... Where can I find a rebuild kit for it? What's a good starting position for the idle screw? Where sould I route the tube that comes out of the float bowl? I seems to get pretty full of fuel for some reason, so I'm guessing the float is stuck (?) I'd really appreciate help with this so I'm not chasing my tail unnecessarily

Has anyone tried riding trials on a KT250 using only three of the six clutch springs? I've done this with a couple of TY250 twinshocks and it works out very nicely. Before I try it on my KT, has anyone already tried it?

Rides like a tractor, great fun! :)

Returning to this site after long time,but same bike lingers in same barn, Norman B4/Villiers 8e moded somewhat. What I need is a running proper trials bike. My nostalgic favourites appear to be Montesa Cota 247, or as I never got to buy one in the day,a Fantic 200,though I have not ridden one of these. My local French club keep asking when will i roll . I've seen latter for not a lot of money, any opinions? Thanks.

Which do people recommend ??

Theres is a Matchless G5 for sale locally, the erm 'lightweight' series.... Anyone trialed one, or even know anything about them? I could just use it as a roadbike if it's a complete non-starter...in the trials sense. Bit of a curio thing, pudding basin, goggles , white scarf 'n glass of milk. 1960 350cc single....the fake unit engine one...you know, the one with big bulbous engine cases...similar (same as, bar name tags!) AJS model 8. Or a G2 250cc with 350 AJS 8 engine if you wish.

Has anyone had any luck with the cheaper levers on eBay? Or are they a waist of money ??

After a long lay off I've come back to trials and realised that at 40 years of age club level expert route is doable just not enjoyable for me (some sections a bit dodgy for my age!!) where I am from the expert class is a big jump up from Clubman so riding a modern bike at Clubman level isn't very challenging, I've bought a very nice Fantic 240 to ride at clubman level so trying to get it as competitive as possible, what's the best rear shocks on the market and where can I get them from?

Montesa 247C with Amal mk2 Concentric. Now the bike starts n rides fine but for this odd issue. Even when hot, stop the bike, restart after say a minute and ride off, just off idle and she dies after 10 yards....keep the gas up for say 30 secs longer and ride her on just off idle and she gets thru this and is ok again and will be...until stopped again. It's annoying as it means I either keep her running in the queue for a section or restart her and give her some beans before the section to get over this 'blip'....not good if you have any mechanical sympathy. Now from what I read Amals can be a little quirky. My thoughts are she is running slightly weak…

Never owned anything that's needed things like cases and forks etc polishing. What's the form on getting a good finish, send them off to a pro, buy an Ebay polishing kit for my bench grinder or hours spent with Solvol Autosol? .....or easy clean ali' coloured powder coating...my local powder coaters do a very good fake ali finish.

The old boy I ride with tells me the idle mixture adjuster screw is an air screw on this Amal...yet I've always thought if the screw is engine side of the slide, it must be a fuel screw? So who is correct? Fuel screw...wind out for more fuel Air screw...wind out for more air Bike is a Montesa 247C 1978 but an Amal is an Amal I guess? cheers guys