trialsrfun

Hi Westyfield was it you riding the Cheetah who had a spot of chain bother on Cheeks Hill if so it was me who helped you with it.

At Hawkstone can we have Martins comments to Dougie sent down the PA ??? three inches back, half a tyre right, perfect, big effort now no radio, no instructions, no minders and no stopping that has got to be the way trials must go to help the sport grow.

Thank you all for the pictures & info, I could not make it to the trial so it is good to see the bikes that won, the Cub appears to have a very special oil tank/air box assembly and maybe the subframe has been lowered by curving down the horizontal top tubes to give a lower seat height ? in contrast the Bantam looks very std but as ever it is the rider that counts.

Is anyone able to post any picures of the Triumph Cub that Tony Calvert rode to win the recent P65 Scottish.

Bloody well kept secret

Come on then any news who is doing the business, any pics as well>

Thank you all for your ideas it sounds as though the crankcase breather is definitely the way to go.

My initial choice of breather was the one on the top of the crankcases but I am concerned that the pumping effect from the underside of the piston might send oil up the pipe and out to atmosphere a sort of total loss system if you follow me, Is there any likelyhood of this occuring.

Has this topic had the biggest ever response here on T/C, I cannot remember anything with more pages/views etc.

Which is the best type of crankcase breather for a Trials Cub, some people leave the original with the small hole inside the r/h engine case. Another method blocks this off and then a pipe is fitted from the screw in bung on top of the crankcases, I am told that one can also be fitted on to the head but I have yet to see this type. So which method works the best.

Amal Concentric carbs are different for 2-stroke & 4-stroke though they can be easily changed. The needle you have with the two rings around the top is definitely for a 2-stroke, the tapers differ on 4-stroke needles. It is widely accepted that 199cc Cubs do not run well on the Amal carb & this is why many clubs Yorks Classic etc do not insist on them being used. When a Cub is overbored 230cc/250cc etc then they seem to run well on the Concentric carb. Contact Surrey Cycles or Hitchcocks for advice on carb parts either one will be really helpful.

Thank you for the help guys but I am still not sure what the correct length of TY 175 shocks really was, some lists say 12.5 others 13.4. Does any one have what they KNOW are original TY 175 shocks to measure please. ScottT I think you are right at 12.5 centre to centre do you know for sure if the shocks you have were the originals, The 13.4s make the back of the bike very high and the fork angle then looks all wrong.

It has been suggested to me that the rear-shocks originally fitted to this bike were taken fron the TY175. Doesd any one know the correct length of original TY175 shocks please.

Does any one know the correct length (centre to centre) for the rear shocks on a 175 Mini-Majesty the one with the chrome Godden frame.

I understand what Andy means but adding pictures still sounds b####y complicated. Is there not a simple explanation as to how it is done.

Can any one please tell me just how do you get pictures onto trials central. Keep it simple though with a full explanation at every step.

Amal pancake air filter is the only one to use in my opinion. Centre hole type screws straight onto the inlet of your carb, offset type is fastened with a hose clip and requires a screw on bush (Amal part) on to the Amal carb. the adavantage with this is you can rotate the filter to best fit. Two types of filter element are available paper (chuck it when dirty) & washable gauze which requires spraying with a filter oil.

Just that really has any one tried these shocks yet, what do you think of them.

Thanks Subira I now have it running well, there seemed to be some debris within the carb but the airline has dealt with it.

Nearly there with the Cub have had it running but it is not right. It is fitted with the Del-Orto carb but to start it needs the throttle open with the choke on, when the choke is released the engine dies. Can any one tell me have you had to change to any different jet sizes etc in these carbs or alter anything, also what jets, cutaway etc did your carb come with. Thank you in advance for any help.

Had a (several) good looks at it at the show yesterday and to my eye it makes all of the other currently available four stroke trialers look big and heavy by comparison. Beta have certainly done some serious work to bring out this bike it will be interesting to see one in action. Steve Saunders says he cannot wait to get his one and try it out.

Picked one up yesterday at the show so have only had time to glimpse through and look at some pics, what do I think of it well in a word SUPERB. Good luck to all involved with it maintain the quality of this first issue and I think you are on to a winner.

Graham Jarvis on the Sherco could ride up a vertical ice rink floor (if we could find him one) but I think Neo is right not enough riding time, not enough forward motion & too little determination after all on a good day if you think you can clean something you will. It is all in the head ??? Graham Jarvis on the Sherco could ride up a vertical ice rink floor (if we could find him one) but I think Neo is right not enough riding time, not enough forward motion & too little determination after all on a good day if you think you can clean something you will. It is all in the head ???

Interesting topic this one and without wanting to start the 2t/4t arguement I do wonder where Honda might have finished in the WTC this last couple of years had they not had the top riders Doug/Fuji & Laia. I also think that at world level the sport needs Yamaha with their Scorpa connection as well as Suzuki & Kawasaki. Going back to the HRC trials bikes the 4RT does seem to be much nearer the production bike you or I can buy than anything Honda supplied to their works riders previously be it two or four stroke.

Thank you Big John & Greeves for the information it looks like Frontera footrests are the way to go. Greeves to lower the footrests the existing brackets must be removed and replaced but is there enough space to move them rearwards as well, do you please have a photo of the new footrest bracket that you could put on here. Off topic but did you see the information regarding the Villiers gearing in P65.