Twinshock

After a LONG time out of competitive trials, I coming back to have a go at twinshock. My era was 72 - 84 Ive trawled the usual markets in a search for a Fantic 240 / Mont 349 / Maj 320 (ebay, trials central, biketrader) but can anyone suggest other good places to look for such bikes for sale ont'internet or elsewhere........

I am trying to rebuild a pair of betor dampers which I think came from a late Bultaco 340. Does anyone know the amount of oil and viscosity, and if there is any chance of getting new seals?

i have a ty175 and i am considering modifying the fork caps to air valves. has anyone had any experience of this? specifically, what valves to use? how to fit ? pressure in the fork? is it a benifit? any advice will be greatly appreciated. paul.

Hi all It was raining tonight so i took my bike down the woods - as i knew there wouldnt be many kids/dogs about. I started it up- put it in gear and let out the clutch. The bike went backwards. I put it back into neutral and tried again and it went backwards again. i thought great a TY175 WITH REVERSE! 2 more shots and the bike went forward. I was out for over an hour and the gearbox and everything else seems fine now. Has this happened to anyone else before. Is my gearbox about to crash Thanks William

old fantic 125/200 with pitted forks.. 35mm. Anyone know if a fork tube from another bike will fit? will it be cheaper then re-plating as ive had a price of about

Had an interesting experience that I would not recommend. When taking off for a ride I had to ride through a small 5 acre paddock that my wife has taped off with electric fence tape to keep her horse in. Normally it isn't turned on - but you guessed it... I rode up as usual running the front wheel under the tape intending to lift it over my head and proceed. But as soon as my Cota's aluminium front guard touched the tape I started to receive a whack from the electric fence unit. These things crank out short high powered zaps - we are talking thousands of volts. In my panic I grabbed the tape and tried to flick it over my head so I could get away but the tape snagged…

hi me and the old man have an old rtx twinshock in the garage but it wont start it wil if you bump start it but wont tick over and it wont kick either it has a new piston and rings and the carb is fine everything seems to be fine but we just cant seem to get it going anyone got any tips

Got a sherpa 340 199b. the crome brake linnings are chipping off. Ive been living with it for quite a few years, but I think I would like to do something about it now. Does anyone know of someone state side that can fix this and possibly improve the design to give better preformance.

Hi, I was just wondering how a 200cota compares to the likes of a fantic 200 or a ty175 for power, rideability, reliability etc, any issues with them or are they a decent bike? Cheers.

Hi PASTED IN FROM CLASSIC SECTION Well I have got the new Mikuni VM26 set up with a 150 main and 30 pilot. Starts pretty good, and runs cleanly but it is now missing when it gets hot. I am running it on 33-1 and with the air screw by 1.5 turns out. Rubber inlet hose in good condition with no leaks. Looking at the plug I have noted that the NGK BP-7ES look pretty hot (ie no hint of soot, and a copper hue). Could this be the problem. Any thoughts of the next step to get the bike running cleanly. Is it worth changing the plug (to what type?), revert back to 25-1, or backing out the airscrew. Or all of the above! Thanks in advance Chris Posted 13 September 2011 - …

Hoping someone can help me on this? My fantic has developed a problem! It will start ok, run then die like the kill button is pressed, some times it will run for a few seconds other times a few minutes Disconnected kill switch completely Check earth and all connections, good Cleaned carb with airline all good, Stator was rewound after the new year Spark is good, Replaced plug, cap and HT lead Top coil is 12 month old dans tyoe, Fault started after a couple of sections of trial, it was running great 5 weeks earlier on the last outing.

My swingarm looks bent in where the axle goes through, and the axle was showing quite a few threads outside of the nut after it's tightened down. The right side plate where the axle goes through is definitle at an angle to the tubular part. I'm wondering if I have the correct spacers. Could anybody out there give me some measurements? Axle length? Swingarm width (at axle)? Spacer width?

this is on e-bay at the moment,starting bid

Evening all, managed to blow a fork seal at the Bath trial today.I'll get some new ones on order from Hirsts in the morning but I wondered if anyone has any views on what is the best grade of oil for the forks - I "load" the bike with a slender 14st ! My first ride of the A route in the Bath trials excellent trial,just looked at the results,they make interesting reading.(not mine)BTW what happened to Maj man 340 ?

I was curious how rare SWM, Majesy's and some other vintage bikes are in the US? I've only seen a few of these around.

I have a pair of Rear Shocks for my SWM that I'm not able to identify (see pic.) Each have a hose fitted on it of about 150mm in length. The end of the hose is plugged. There seems to be no pressure in the hose. Does anyone know these schoks and what these hoses are good for? (if of no use I would like to remove them)

A time ago I was at a kawasaki dealer in the Netherlands looking at some dakar bikes he had collecting dust and noticed a kawa trial. Are there many of those around?

I have a ty250d project bike i'm working on, frame has had headstock steepened & peg mounts moved with modern pegs by previous rider. I've just gotten the parts to rebuild the foxshox(trials type) that were already fitted, had to reposition mounts to bring bike back to level. Now for the big question, are there any worthwhile mods that can be done to the forks while they're apart for seals, ie possibly remake damper rods in alloy with any suggested alterations to hole size & position. I know they'll never feel anything like a set of modern forks but if they can be improved why shouldn't i do it?

Can anyone advise me of the correct colour, or even remember what sort of yellow it was. Light dark sickly stc

Hi all Just purchased a 1982 gripper 350, came with a mikuni 28 mm on it, can anyone provide me with jetting that works well for them? cheers bob