Pre-65 Bikes

Hello All, long time reader first time poster 😀 I own a pre65 Triumph cub with an original swing arm. I am wanting to run a modern trials tyre however things are tight down there 🤣 I understand that Feked do a trials swing arm to give more clearance however i was wanting to hear from those that have modified the original swing arm quite sucessfully without going down the feked path. Many thanks

Hi Has anyone got a good base suggestion for fork oil weight and the amount for Cub heavyweight (earlier internal spring type) forks? Haynes manual says 150ml SAE 30. Cheers Jon

Am thinking of adding a return line oil filter to my Triumph Cub trials bike, any recommendations of a kit or supplier anyone?

Oil Tank under the petrol tank, or, in the conventional place on the right hand side of bike, one better or one worse anybody have any feelings, for or against. Vinnie

Not that i need one yet,but i hear talk that a lot of people when getting a rebore are opting for a kawasaki piston. What piston is it and what bike was it originally used on,just for future reference as i believe it will come in hondy for future reference. Regards Dan

Hi Guy's Just about to mount a PVL ignition stator to my Cub crankcases. Now I have thought of several ways to mount the stator including a plate between the chaincase joints etc. But have come back to the conventional pole or stud (BSA) set up. Now do you think, it is better to mount the crankcase on a rotary table, on a milling machine, and scribe a 81mm circle (pitch Cirle diameter), then spot machine three pads, and then machine and tap three alloy or steel poles, then drill and thread the crankcases to exept these poles, then machine them level to exept the PVL stator plate. Or should you make up three poles and drill and countersink the crankcase from inside an…

What is legal for Cubs suspension wise? Can Ceriani / Betors be used and if so how late of styles? I am new and want to stay legal but see lots of Cubs with later model suspension. How loose is the "period mods" adhered to by AHRMA? Any advice welcomed. Same questions for aluminum rims, tanks, bars etc...Thanks, Ted

My 199 Cub is fitted with the R cam, it always has had this cam so I have no comparison but at a trial today I rode a 199cc Cub with similar engine set up to my bike but with the std Cub camshaft. Now I realise that bike set up is subjective and it could have been the 'new broom' thing but the std cam seemed to provide as much power at the bottom end but possibly a more controllable and steadier pick up. The R cam really makes the motor go once off tick over but having ridden the alternative set up I now am thinking might this be the way to go? In most trials you simply do not require loads of power, a smooth engine seems better so what cam is most widely used in the li…

Hi I have brought a tiger cub trials bike as a project I have had it running before I stripe the bike for a frame rebuild. The engine has been in a frame on my bench on refitting it back in the frame I can not get oil too return from the engine when it is running I am sure I have fitted the oil feed pipes correctly any adivce

Trying to find a folding gear lever for a Triumph 500 unit twin. Anyone know a supplier Needed to fit my TRIBSA

Here's something just a little different. One of our Club members John Cart, has just finsihed rebuilding a Triumph Metisse, it is a 1963 bike which was fitted from new with a 1953 alloy barrel 500 twin motor. Here is a video of it's first ride in well over 15 years. John tells me that it is the exact model as used in the Great Escape film, he plans to use it at Red Marley on Easter Monday.

Hello, Fortunately, I noticed my Mountain Cub (1965?) trials conversion bike stopped pumping oil before it got too hot. I assumed it had a bad oil pump. I found a new NOS pump for $50, so I went ahead and bought it and installed it (not a fun job). Unfortunately, my bike still isn't pumping oil. Although I'm not a triumph cub engine expert, I have rebuilt, from the crank up, three motors and they have ran great after my rebuild, so I do know my way around the motor. I was very careful to install the pump correctly and it was spotless when I installed it. Could the "dry" sump not have enough oil in it? If so, how would I add some oil? To note, I haven't pulled…

Hi: Somebody knows RAL or code for this Triumph

I'm trying to source a T100 pre unit engine for a mate, if anyone has or knows of one for sale can you please give me a shout? If you PM with your number I call you back. Cheers

Tri Terrier cylnider head and cylinder are on US ebay now. $20 and less. k

i just putting my tiger crankcase together shims crankshaft I have got one shim on primery side is there spose to on other side as well been looking books cant see any shims

hi I am new be to trials central I have points in side engine in bit and early bush distributor in bit all mixed up so don't know what gears belongs to what are they all the same inter change if anybody put right thank you

I would like to convert a Triumph Tiger Cub for trials. I have two Triumph Tiger Cubs basket cases. I would like to know what should be done. What forks to use? What motor mods should I do? What aftermarket trials parts are there for a cub? One of them somebody had started to convert already it is a roller.

can anybody tell me what forks and top/bottom clamps will fit straight into my triumph cub thanks

I am rebuilding point in the side cub engine my original crankshaft has wear on the oil feed side so got another crank off flebay and that one same wear on the shaft where the oil feed is anything to worry about or do I need to split crank buy new shaft