Twinshock

I have a 247 cota. does anybody know a part number for the main crank shaft bearings, and if they are a specific to Montesa, or can be ordered through a bearing company ?

21M25425 Has some different stuff from my '74 which is also a 21M. Clutch arm on top, different engine covers, Amal carb... The guy I got it from tied it down to bring it home and when he took the straps off, the forks stayed collapsed. Any Ideas. The seat/tank is a WRECK. What are we doing with these things these days? I still figure I did OK. Buying bikes from rednecks is interesting. He took $375 and a 30-pack of Busch.

Anyone on here heard of a lion rapide rigid trials before. i found this gem on ebay Lion rapide

I am starting to restore a 1974 Ossa 250 MAR and wanted to identify the frame. It is nickel plated, has a built in oil reservoir and metering screw for the chain in the s.a and Dzeus fasteners for the side panels and bash plate. There is no tab for a side stand. I cannot find any numbers marked on the frame, have already had the tip that it is unlikely to be a standard Ossa frame, more likely a Whitlock. Are there any other options ?

Whats a ty 250 twinshock worth these days?? It's a friends bike, nice engine still running the autolube and has it's stand, but no lighting kit! Think it's a 78' or 79 model tank has the blue striping...

Hi guys ... has anyone tried changing from an Amal ... or similar carb ... to the OKO ? I'm running a 24 year old Amal carb on my Armstrong and can't get the carb. just right ... old age probably ... the carb ... not me...! I'm led to believe some of the better twinshock riders are using OKO on Honda and Fantic. Any info. would be gratefull.

http://www.korallin.us/wbb2/attachment.php?attachmentid=7247 http://www.korallin.us/wbb2/attachment.php?attachmentid=7246 http://www.korallin.us/wbb2/attachment.php?attachmentid=7245 thought you may be interested. Its on a for sale ad over here...no not mine and no friend. were they sold in the UK? Lee

hi i have an original 82 majesty 200 witch i need some info on. The fly wheel and crank are both scored pretty bad and keep sheering the key. From my understanding they both differ from a ty 175 so what did they use and where can i source parts. Is the piston the same as the 200 kits for the 175 if not what is it and where can i get one (i heard its a 250 piston with skirt cut down) the swing arm axle is striped i have a 175 one in there thats spaced out but gets in the way. i guess i could thread it down and cut it shorter but if i want to put the 175 back together i kind of need it And if theres any other usefully info about this bike i would like to know about i…

Can anyone out there tell me what size bearings should be used in the rear wheel of a TLR200E? The complete NTN 6201 LU bearing on the drum brake side fell out when I took the brake drum off. The hub looks ok - there's no crack in it so I'm wondering if the bearing is the right one. TIA, Pete

Has anyone on here used Maxton shocks on their Twin Shock Trials bike ? I'm curious what people know of them and are they worth the expense. Cheers.

I was wondering if any of you guys could point me in the right direction regarding a 78 349 Cota I have. Firstly the front brake is poor, new cables, new shoes but still the lever feels very spongy and will touch the bars. The brake does work but won`t lockup, doesn`t inspire confidence ! Secondly, the front forks have air valves on the top, is this for assisting the damping with air or for letting air out, get different reports from different people. I have never had a Mont before so can`t tell if it is a quirk of the model ?. Thanks

Ive got a 320 majesty, the engine has recently been rebuilt so everything that matters is new, this work was carried out by someone who knows what they are doing. It has got the electronic ignition that craig mawlem sells. I have opened up the standard TY air box by removing the seat for the origional filter that restricts the air flow and fitted a TY mono filter to the top of the air box. It has a WES exhaust and a standard TY 250 Mikuni carb with larger jets, but after all this Im still having problems getting it set up to run ok. Its great in the sections but as soon as you get it out into the open fields and try to open it up it starts to pink and knock. The only thi…

On a Amal Carb if you start the bike and it run for about 1min on tick over and it then stops, what would be the problem? If i tickle it again it will start, it's as if the fuel reservoir is emptying, is the float jamming or is there a hole blocked somewhere

Anyone know where i can find steering bearing no's for the armstrong hiro, as i need to replace sum and i dont have the old one's, think its a 310/320 one, I saw on here it was a common enough bearing but be good to put a no to it? any help be much appreciated thanks

I have been offered this nice looking garelli for a good price. The bike is 700kms from me, in italy. Trouble is, the kikstart doesnt work. i may need the gear, or shaft or how knows whatelse. Any sorces on spares out there? Thanks

Just came across this on Charlies site. Obviously the B25 is not a Pre 65 and falls into the Twinshock category unless your club has a Pre 70 class like the BMCA. This is vid number 1. there are follow ups.

my shocks are blown on my beamish, any recomendations for replacements?

check this dude out on you tube!! http://uk.youtube.com/watch?v=h7FxknaVQ0A

Hi Just a thought has anyone on the forum ever done a front disc conversion on a 348/349/350 - I have seen a picture of one on a local SA auction site - Looks like they used a Japanese front end. It would upset the authenticty of the bike, but would certainly make long descents less hair raising than with std Montesa brakes. Ian

Sprite! I think this model may be called a Goldfinger but I could be wrong. I'm a real sucker for these British kit bikes