Pre-65 Bikes

Got the Sprite and had a first ride on it yesterday. Feels surprisingly modern. The frame has obviously been quite well modified to alter the steering angle, it does steer very well. The engine feels lively and it seems to find grip pretty well. I'm surprised how light it is.I'm quite chuffed.

Can anyone give details for this event, classes etc? When and where?

Hi, Can anyone explain how to set up my bantam b175 so that it does not need a battery for the engine to run.It is used for trials so does not have lights etc,I am trying to make it as simple as possible without spending a fortune on electronic ignition, can the alternator be connected straight to the coil so I can remove the battery and regulator? Also does anyone know of a source for buying a tucked in high level exhaust or the right size of silencer required or is it just guess work? Thanks for any info replied.

Does anyone know what size clutch hub puller (extractor) is needed for a BSA C15? It looks like a 7/8-20 thread but that does not seem to meet any standard.

Is there an old foundry knocking out Rickman hubs, because I received some pics today of some front hubs up for sale at a not-very-pre65 price, and they don`t look pre05 to be honest?

I have just bought a pre 65 BSA C15 that will need some serious reviving to be ridable. Wheel and fork replacement may be easier than working with what is there. The AHRMA rules seem to allow any pre 1975 forks and wheels? Is this correct? Does this mean I could use early 70's Japanese or Spanish forks and wheels? If nothing else, it would allow me to ride while I revive the original parts.

Has anyone tryied the B40 alloy silencers advertised on this e-bay site ? http://stores.ebay.co.uk/Race-Supplies-Dir...5QQftidZ2QQtZkm

Hi All, Does anyone make longer spindles for the front hub of a D14 Bantam? I've got a set of MP600 forks I want to fit instead of the BSA 'Cub' ones and the spindles are about an inch short each side. Thanks in advance!

I am reconditioning my Cub Head, i have everything out of head, i need to clean the exhaust port, get rid of carbon etc. is there any sure fire method of cleaning, i.e. costic soda, or is it just petrol and elbow grease Vinnie

Would anyone have a pic of the above, as I need to order some hopefully this weekend and SM don`t have any pics on their site. Also would be grateful of other recommendations? cheers

Hi Guy's, This is the frame I have just finished to take our Tiger Cub engine. It is based on the design of Pat Slinn's BSA frame that he built in the competition department in 1964. Here are the pics at last, sorry for the wait. Regards Charlie.

I have recently purchased a used peco style silencer box in steel, to adapt for my B175 and would like to know how much baffle is required for trials use. The reason I ask, is that the box at present, whilst packed, is straight through. I have located a small removable baffle which is available for quietening 4 stroke pipes on road bikes and wonder if it would fit the bill, or is it necessary to have the tailpipe offset from the inlet on the box on a stroker. I admit to having no real knowledge of silencers on trials machines and would appreciate comments please on the subject. Thanks. Steve

After a year of trying to get my cub to run properly,199cc Dellorto 22mm, (its always felt flat at the bottom and never felt like it would rev out),but after trying different carbs playing with and checking the PVL system i finaly got hold of an 'R' cam to try. On stripping the right side casing down to replace the cam i discoverd the problem, the cam timing was out by 3 teeth! the cam gear was lined up with a scratch mark and not the punch mark. I would presume that in this setting the valves were getting a bit close to the piston and this would explain the poor running(black plug,having to run strange carb settings to get it to run ok'ish) i am an average mechanic and s…

I am unable to source a folding kickstart lever for my Bantam B175 engine (large splined shaft) and would like to know if anyone has found a lever from another machine that fits. The smaller splined D14 lever is available as a folding item, but it is rather bulky and costs

I removed top end to find source of rattle (bent push rod) and while checking conrod this piston was revealed. I am wondering is this a stock item or has it been machined specifically (for what purpose). The numbers are AE 16945 413 IL82 GI and top is marked STD 5LL. I have tried looking up web for catalogues to no avail as I would like to replace rings. Any Ideas as to where I can source these.

Hi, on stripping C15D engine with timing side bush, bush was seriously shot. Phosphur/bronze bush had either spun or been fitted incorrectly as the oil feed visible (pointing to anti sump valve) had closed to a eclipse equally about 10% of throughway. After removing bronze bush to replace I noticed that even though the steel case insert has machined faces to locate it vertically when fitted in case, the oil feed holes here do not align correctly. There is a devience of a few degrees. To open the oilway fully I would have to enlarge one side of the oil feed holes (in the case I would have thought preferable). Which of the two is less likely to cause a problem, opening the …

Hi all. I am rebiulding a new Trialsbits WM1 21ins 40 hole non-valanced alloy rim, onto a standard Bantam front hub and would appreciate help with the spoke lengths I require, if anyone has the info available. I believe they are 10swg, but am not sure of the length and the hub was not in a wheel when the project was purchased, so I cant even have a stab at it The nipple holes on the rim are 7mm and i'd like to use stainless spokes if they are available. I hope to lace it myself, as I have rebuilt plenty of British iron, but never done my own wheels. I will have it trued by someone professional just to be safe, but I'm determined to have a bash at it. Thanks. Steve

the mag on my 350 is playing up when hot,not wishing to throw good money after bad i am toying with buying a new electronic mag from BTH. is any one useing one of these, if so are they worth the

Just looking at the results for the Westmoland Trial and it seems a shame that it had so few riders. 18 pre 65 and 22 Twin Shocks( i had enterd but an injury prevented me from riding) i would have thought being in the area it was there would have been quite a large entry given that the north of england must have loads of pre 65 and T/s riders. What happens to the hoards that enter or get turned away from the scottish? why are they not riding/supporting these trials? Are they all turning out for the next trial run by Ilkley & District? I wonder(like others, i am sure) just where the pre 65 scene is heading? Although the Reliance trial had about 120 riders! Why is the M…

Hi, I'm told there is a two day pre-65 trial in the lake district during August or September, but can't find any info. Any info / pointers appreaciated. Ross