Pre-65 Bikes

does anybody know who supplies magicals fork springs now please.

So, in an attempt to make sure I've got the correct mixture I keep on checking the plug and after a few changes this is what it looks like I think it's looking pretty good, thoughts please?

I have an Ariel that since the engine was rebuilt many moons ago run on castrol R. It has to come out for a last minute trial on Sunday and I have no Castrol, will it harm it to just mix whats left in the oil tank with a normal 10/40, or do I need to drain it all out, or does it need to flushed / cleaned throughout before I add another type of OIL. I am sure I read somewhere that it could damage the engine if care wasn t taken when changing from Castrol R. Thanks.

.... bring on the Guy Fawkes trial. Might even try to get it painted before Sunday, am thinking black, with Silver coach lines and the obligatory flying 'M'.

Hey I'm building a c15/b40 trials bike and I've just picked up some mz forks 35mm however there is no bushes??? The stantion seem to wobble a bit in the seals just wondered if these forks were supposed to have bushes or if this is normal? Cheers luke

How's this for a great looking Triumph?

Does anyone know if Norton Villiers are still going, I’ve sent a couple of emails with no reply? I keep meaning to ring but its not always easy when I’m working!

So, still got the metal on metal noise after the bike has run for around 10 minutes. I sat looking at the engine tonight waiting for a eureka moment and maybe I had one. Have a look at the picture, could it be that as the oil heats up it just flows downhill to the inlet rocker and doesn't bother to flow uphill to the exhaust rocker? The oil starvation from the exhaust rocker then creates the noise.

Hi all, does anyone know of any Mick Mills type frames out there for sale?

Hi everyone, I've just bought my first AMC bike which is an AJS 16 that's been built as a trials (style) bike. A fair bit has been done to it but there is also a lot I need to sort out and improve upon. The plan is to use it for some road trials like the Arbuthnot, some rides out with my local VMCC sections and a bit of playing around at my trials club's local practice ground. I'm not looking to use it for serious pre-65 competition use. From what I can tell so far, it's quite a bit of a bitsa. I believe the frame is a 1959 but the engine may be earlier as it has a pressed steel primary chaincase and magneto with manual retard control. I was also told that the crankca…

When checking machine eligibility do scrutineers check the year of manufacture on a V5 document? There are clearly plenty of D14 engined 4 speed Bantams being ridden in Pre 65 trials, when those bikes were originally 1968 or later. So how is this trick pulled off? By putting a later engine in an earlier donor bike, who's V5 is of the appropriate year? I am not so concerned in this post about parts eligibility so much as ensuring the machine's documentation is in order.

is there anyone out there that can id my frame number for my Dot

I have a knackered big end, not sure how bad it is as I’ve not had the engine running (it has about 0.001” – 0.002” play) Do I need to replace the crank pin and con rod or is there an inner & outer race? And can I split the crank with a 5 Tonne press?

anybody know where i can get my italjet t350 hubs re-lined with a new steel liner and any idea of cost.

Whats the best length shocks for a bantam D7 Trials?

Has anyone got any advice regards cam followers on a B25, I'm pretty sure I've got one sticking that releases then drops making a metal on metal sound, or they're touching each other, the noise is only there when the engine gets hot.

I’ve checked the gear ratios on my Villiers 32a motor and it has standard set (As opposed to the wide ratios), does this mean it’s a road bike gearbox or the standard fitted to trials bikes? Also I have a 20T primary drive sprocket and a 15T gearbox sprocket, what would be the best size for the rear sprocket?

Any recommendations for best spark plug to use with a C15, PVL Ignition?

Hi all any advise on fitting the later type primary inner and outer cases to a 32A ? Looking at it it seems you have to trim the crank case up with a dremel ? Got to be better than the massive rugby ball type case that's on there !! Would this make it in eligible for the Scottish p65 ? Your thoughts please Cheers

What would be a reasonable amount of ground clearance for a pre65 bike I’ve just measured my frame and I’m getting about 10 to 11” with 360mm shocks