Pre-65 Bikes

Anyone got any news of Wassell's copy of Amal Concentric Mk1 ? Also a mate of mine has been told that Gas Gas clutch oil will cure his slipping clutch on his Bantam-any opinions?

Hi Guys I currently have my Panther geared right down to about 30 to 1 for trialling. I am planning to do the Arbuthnot trial in sept on it and there is a far bit of road work. So today I fitted my speedo and went out for a blast. I am getting about 25 MPH on the current gearing. I have a 66 tooth rear sprocket fitted at the moment. But have a 60 tooth one in the garage. Would fitting the 60 tooth make that much difference or do I need a even smaller one?. I wouldn't mind about a 40 MPH top speed. I do understand that I will be raising the gearing up all through the range but I am not to worried about the sections in the trial. I

Whats the best length shocks for a bantam D7 Trials?

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.

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

Hi Im building a 500 Bullet / Crusader trials bike. I would like some advice please on gearing for trials. engine sprocket? gearbox sprocket? rear sprocket? or Hitchcocks low ratio gearset? thanks in advance

Does anyone know the best trials set up for a tiger cub, i have some 3ta forks but need softer springs......what about twin shocker stauchions? Regards Christy

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

Hi Guys, Is the Talmag trial still on this sunday at Hungry Hill, Aldershot. Last year it was cancelled, if so its a good day out, especially the sidcars bouncing valves up the climbs!! triton

I’ve just acquired a bantam D7 bottom end (everything accept a barrel piston & head) I would like to fit a D14 top end, I presume it’s a straight fit. But did the D14 have any difference to the crankshaft, crankcase volume or transfer port alignment? Basically what I want to know is, will I get the same power output as a D14?

Hello I have a nice rear wheel built on a D10 half width hub that I used to run in a C15 frame and swinging arm. I was thinking about using it in a B40 WD frame and swinging arm I have for a vintage Mx build. The spindle is obviously a little short in the B40 WD swinging arm, are there any other longer spindles that fit the Bantam hub to help with this?

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 Guy

IVE JUST REBUILT A 1964 TIGER CUB AND ITS HAD THE ALTERATION TO THE FRAME WHERE A MILLER CYLINDRICAL OIL TANK IS FITTED. I KNOW THE TIGER IS A WET SUMP ENGINE BUT CAN ANYONE TELL ME HOW MUCH OIL GOES IN THE TANK. A SET AMOUNT OR FULL. THANKS

These are some tips collected and tried during many decades of fooling with bikes, particularly Cubs. I wish to write them down while I still can, and pass them on to newbies, so they don't have to reinvent the wheel multiple times without end, and perhaps to recall some of them for us oldies. Litew8cub's 29 Tips. 1) To properly get a good solid purchase and avoid slipping and damaging very thin nuts as found on top of fork tubes, steering stems, clutch hubs, gearbox output sprockets, etc, I have found it very helpful to grind away the ends of my sockets, removing nearly all of the radius leading to the nut cavity, so more of the socket and nut flats are in good conta…

how long should these be to properly mount the ignition, either pvl or electrixworld thanks

there is a cub bottom end for parts on US ebay. I cannot post a link, system is down. k

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

Hi, Im confused.. reading at a well known classic trials dealers site..their default recommendation is 18" x 1.85" rim for e.g. Cub rear assembly. Are you satisfied with rear end trials set up: 4-5psi, 1.85" ally rim and available 4.00? (well, people did use 1.6" x 19" rear for trials and scrambler back in the days.........and agriculture vehicles did perform with none "rubbered wheels" at driven axles in an other century... ) cheers,

Hi, just bought a HT and not sure whats what. Originally it was a `57 500 reg. and has scruiteneering marks at the bottom of the forks The bike was rebuilt around 2000in Scotland but the guy I bought it off bought it on a whim and prefers modern stuff and was pretty clueless.A letter with the bike states that the swing-arm, sumpguard,oil tank,front end, and 19"rear rim were on it at the SSDT.