Pre-65 Bikes

Hi Guys. Need some advice. I'm going to use the Electrex CDI unit on my Cub. I'd like to use the earlier pre points in the side sidecover. After taking out all the non used stuff (points plate, points and advance unit) what will I have to do besides putting the earlier side cover on. Thanks in advance.

Retired to France a few years back. Kept my old TES Greeves in the belief that I might one day ride again. Maybe the Talmag. Maybe the Scottish Pre-65. Maybe some classic French trial. Didn't happen though. Sold the bike and reluctantly accepted that my trials-riding days were over. Since then, as one does, I've been trawling the sales ads for interesting pre-65 and twinshock bikes, just out of curiosity. Seems that there are less and less good 'uns available, so more and more must be mothballed in old blokes' (and lassies') garages. And, crikey, how the prices have steadily risen over the last decade or two! Eight grand for a Cub. Ten grand for a 350 CCM. Fifteen grand f…

I have been asked by a French chum, who is building a Trifield, if I could find out the gear box ratios, and also the sprocket sizes that people in the UK use. Also once found, who could furnish such items. Appriciate any help as he hope to ride in Scotland next year, after struggling a little on his big Terrot. Merci.

This is a photo of me on my uncle Richards bike,(1968 to 1970) can anyone have a guess as to what the machine was? We had my his funeral on tuesday 11th July 2017, he was a biker all his life, without him and my dad i don`t think i would be riding a motorbike today. Steve Bisby.

A friend of mine is selling a 250 BSA in street trim.How much work and money would it take to turn it into a trials mount? Can the frame and engine be used in standard trim?

Hi members. will someone tell me the best spark plug to use in a bantam 175 for trials use? and the best petroil mix using fully synthetic 2 stroke oil? ???ml per 5 litres petrol. Paul

What Size front and rear sprockets for cub, recommended.

Hi chaps, when I bought the Cub (200cc, R cam, largely standard) I was advised that the Cotton PW22 carb went straight on and was positively the bees knees. So I bought one. It doesn't go straight on, I can find nothing on the internet about it and have had no response from the seller. Does anybody know anything about it? Does anybody know where to get a manifold to fit? Thanks chaps.

Hi all. I have a very non-trick Cub and no immediate desire to make it super competitive, because my riding isn't anyway. It would be fun, however, for the brakes to make a noticeable difference to the speed of the bike. What can be done, retaining the standard hubs, to improve matters. I'm really not planning to replace or rebuild the wheels in the near future. Cheers

Hi , as above my cub has one of Petes clutches .Question is does anybody else run one these with an Armac lightener ?, I can't seem to be able to get the action right ,if I adjust so as the bike will kick start ok this results in there not being enough leverage to disengage properly . Iam having doubts that this type of clutch will work with the said llightener . Any feedback or help would be great . Thanks .

What Spark Plugs are people using in their Ariels ?

I'm about to start doing my cub engine and will opt for an electronic ignition. Does anyone know where I can get the pillars welded for a PVL or HPI? While I'm at it, the bike was my old mans and he was going to do the window mod to access the drive sprocket. I believe Ray Small did this mod. If he still operating?

Hi guys, i'm about to fit my clutch plates - using an eight plate clutch upgrade. My experience with more modern bikes is to soak the plates before fitting. As my engine is likely to sit on the bench for some time as i'm keen to do this. Consequently, i'm seeking advice on what oil to use? I'm not too fussed about price i'd rather run with something that doesn't encourage slippage. QM

Hi guys, i'm fast reaching a point where i need to decided what to do next on my rebuild. I've got the primary chain on but not the clutch plates etc. I haven't fitted the cylinder yet so opted to fit the pvl ignition i brought from sammy miller products a year ago. I've brought a case that serco have machined so my pillars are in place. ive had a look in the bag that the pvl kit was sent in and i have a back plate, large washer, plug cap, a rotor and coil type thing (?). I also have various instructions that refer to a 'large diameter alloy spacer' and '1/4'' bore spacers'? I have none of the latter items but on reference to SM Products parts list they are shown in …

Hi guys, i'm new to this site and to rebuilding/ building engines, Consequently this may be the first of many posts! My cub is a '61 with an oval head. I've done quite a bit of work to it with more enthusiasm than skill! I've started to put it back together and will be fitting a pvl ignition - purchased from Sammy Miller. I also purchases a case that had pillars machined by serco (?). My query relates to the distributor and i perhaps should have posted this query before i fitted the inner case! I'm assuming that the distributor on my model (sat on top of engine) is now redundant? Thinking this is didn't fit the clamp between the inner cases? What advise can an…

Hello all I now own a sprite trials bike and looking for more info on the bike. I think it is one of the earlier models but im unsure. The bike seems to be in very original condition even with the original fuel tank i think. Any info would be great.

Out of my area of expertise, but a friend of mine is thinking of buying this bike, it's got a Triumph tank on it with what he thinks is a BSA C15 engine but the sellers not sure what to class it as. He asked me knowing I have trials bikes but my knowledge is Spanish Twin shocks so I said I'd ask on his behalf. Can anyone help him out. Thanks lads.

Hi Guys I am getting my hands on DOT frame. thinking of Greeve new engine might be good for it. Are they eligible for Pre-65 with older frame. price looks reasonable. if build engine professionally it cost similar or more http://www.greevesmotorcyclesltd.com/engine.html Any ideas ? Thanks & Regards

Hi, I'm rebuilding my Cub engine and notice that the Cam Followers have 2 small blind holes in each Follower presumably for lubrication. Do these face the back or the front of the engine, or doesn't it matter? My Haynes Manual doesn't mention rotation. I'm currently thinking towards the back to trap oil in them. I'm also fitting a blind outer Camshaft Bush. I presume I can now take the blanking screw out of the end of my side points Camshaft. The timed breather will also be redundant and I will drill a small hole from the oil return chamber into the blind bush to lube the camshaft. Any advice appreciated. Bruce.

Anyone got a pic of an HT ( their bike ?) with an Avery Products- Terry Weedy tank? They're quite a bit cheaper than the Holtworks ones so just wanted to get an idea. Thanks