Pre-65 Bikes

I am looking for the following programes etc. * 1964 ISDT, Erfurt, East Germany. * 1965 ISDT, Isle of Man. * 1966 ISDT, Villingsberg, Sweeden. Any body out there have a copy. Pat Slinn

Does anyone know if there is a modified or purpose made swing arm and rear sub frame for the C15 / B40 trials available anywhere?

Hi, I'm new to bantams and are looking for a bit of advice. I have a bantam b175 trials bike that I have just bought as a non runner,I started by checking the points and timing, I could not get the timing correct and took off the points cam as it seemed to be in the wrong position to get the timing correct. The cam fits on a taper but there does not seem to be any way of holding it in the right place, there is a small groove in the back of the cam but nothing on the crank for it to slot on. Should there be a peg or something for it to fit on? I would be grateful if anyone could offer any help. Thanks Alan.

What compression ratio should be targeted for a C15 intended for trials? It is a 1960 C15S. The available range seems to go from 6.5 to 10:1. It looks like early C15T had 6.5:1 and later models had 8:1.

hi, i have a 1967 greeves that came with a 2t engine in it. it was not untill my dad and his mate don (morley) confirmed it as an anglian. the G. R. A said it came from a dealer in leeds called whylde, has anyone come across this dealer? also i need a 37a engine , 161/f/c971 was the one fitted from new. any info would be great

Hi I have a problem with my B40 trials, I went to fit a pvl ignition and found the primary chain had been rubbing the crank seal. Is this common and how can I sort it? I also need to get more ground clearance from a c15 frame b40 engine . Been having problems with getting hung up all the time. Are there any common mods that were done? Also how easy is it to replace the conical hub with a cub hub, I have b50 front forks four studs Any help would be much appreciated

hi im building up a dot white stregnth trials bike with a 32 a bottom end parkingson square barrell 250cc and im looking for pointers on the carb settings ive opted for a 26mm concentric using a round filter what size main jet,piliot jet ,needle and slide would be a good starting point and whats the differnce betwen a 2 stroke jet tube and a 4 stroke one ?. and fork angle on the dot as the frame was origionally a mtx bike with leading link forks the wheel base with ceraini forks is 54 inches any ideas for a good wheelbase and fork angle and good methods for obtaining it ie cutting the frame cheers jim

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Hi while assembling the gearbox components I fitted a new camplate spring, second hand camplate (identical) because point at 3rd gear postion on trackway was not worn on the spare I found in a box. Spring was set at correct height, when depressed, in relation to cam pivot and all seemed well. Assembled the cases to check and found that the camplate makes a definate clunk against the bottom of the housing when selecting 4th. Viewing with a bright light spring is engaged in camplate correctly. Looked at the old camplate and there was no wear mark at the spring/camplate location to indicate that the cam was being held out of place by the lowest point of the camplate meetin…

Where can I get the best deal, and which are the best currently available at a sensible price in the UK. (Tube type)

I recently purchase BSA 441 Victor as a basket case at a garage sale. The bike appears to be about 90% complete but at some time has had some modifications to use as a scrambler. I would like to build it back as a trials bike to use in pre-65 competitions. The frame is appears to be stock and it has a 19' front wheel. Any suggestions on frame or other mods and sources for BSA parts would be appreciated.

Is there anybody manufacturing replica hubs ? Any info would be appreaciated. Ross

hi. i have got a villiers engine which i have been running but the cylinder head is scored. is it the spark plug do you think. thanks charlie

Not too far from finishing the build of my C15, never done a trial before, used to do modern enduro`s so ok (ish) on the mud. I`ve done the usual mods but funds don`t yet run to fiddle forks, so have some old Betors with the outboard triple clamp bolts. I`m in B`ham so looking to ride around Midlands, and I`m sure I won`t be gracing any podiums in the foreseeable.... Which clubs will turn a blind eye (if any?) and would I be eligable to go in Specials class in Sammy Miller series next year? ( P.S for Charlie; after seeking advice from you and others, I eventually widened the swingarm by an inch by simply cutting it in half then inserting extra metal to make up t…

Pre65 Entry Form 2009 from SSDT Site Vinnie 2009_P65_Form.pdf

Chain / tyre clearance on my B40 is minimal, I dont think the rear whel can be dished enought to give adequate clearance. Has anybody put a spacer between the sprocket and hub, then made new axel spacers to effectivly move the wheel away from the chain by a corresponding amount ? There is plenty of clearance to the right of he tyre. While I'me picking your brains, I've noticed that if I leave the bike with piston at TDC that it doesn't wet sump as quickly, is this something to do with where the oil pump positon in its stroke ?Thanks in advance for any thoughs / observations. Ross

I'm in the process of disassembling a C15 that has been sitting for some time and is somewhat rusty. I can remove the nut from the fastener that holds the kicker on .....but even a sharp hit with a hammer will not drive it out. (the opposite end is round and looks like the end of a dowel pin) Does anyone know how to get this out? Does the fastener have some flat sides that keep it from spinning? While on the subject, the motor is also locked up. I have the head off and got the cyliner moved up about 1/16" but that is as far as it will go. The piston is not at TDC so even if it is the frozen piece, the cylinder should move farther. Are there any recommendations on…

Never worked on one of these bikes before and I need to take out the kickstart shaft to see what is wrong with it. Are there any pit falls when stripping it or tips on how to go about it. Will I be able to get it out by just removing the casings or do I have to split the motor ! Thought it might be an idea to ask before getting the tools out. Any info would be great.

Hi Everybody I'm after a Villiers folding kickstart (to clear the trials footrest). I am told the way to go is to graft a Gas Gas folding section onto the Villiers splined boss. Can anyone outline the procedure and specify the Gas Gas kickstart to use? Many Thanks. Regards Sparks2

Further to my posting on this forum, i was put in contact with Ian roberts of SERCO, he looks like he came up with all the goods i need for the new Cub build the new engine will be ready at the end of this month question is, has anyone else got a SERCO engined cub here, and whats the best gearing to use with the 250cc engine (i'd ask Ian but hes away on his holidays for 2 weeks !!) and has anyone done a full serco bike with a standard ish frame, i'm looking for some photos of finished bikes.