trickymicky

Yorkshire classic is still on..

It looks like theres a TY 80 briefly at around 2:10.

The difference is huge.Sticky tyres were not round in 1975 but they were in 1982.

Thanks! Well i reckon not having a sidestand on a new bike would be irritating to say the least.

I'm trying to make the advantages of not having a stand outweigh the disadvantages,but i'm not doing very well. Can someone help?

Just found a clip of plod giving chase.. http://www.youtube.com/watch?v=3PrXIm58GWQ&NR=1

According to their website,as of May this year,they had orders for 24. However,at the launch, in Sammy Miller's car park last month,the fiqure quoted was 20.

I think they are trying to locate the bike,not the handler of stolen goods.

They have a website of a similar standard http://www.greevesmotorsport.co.uk/diary.html I think the rider is Billy Wightman...

Your overall bottom gear ratio at the moment is 21.9:1 assuming you have a road box fitted with an internal bottom gear ratio of about 2.8:1. Using a 17T engine sprocket instead will give an overall bottom gear ratio of 23.25:1 Assuming its a 350cc,you really need a ratio nearer 32:1- some may disagree it needs to be that low,but its certainly overgeared even with a 17T sprocket. Calculating bottom gear ratio is quite easy- the drive train comprises 3 ratios, Primary,Gearbox internal and final drive. The overall ratio is arrived at by multiplying all 3 together. In your case-40/18=2.22:1(primary)x 2.8 (g/box internal)x 60/17=3.53:1 (Final Drive)= 21.95:1Overall With the above,you can substitute different teeth numbers,then re calculate to check the effect.

Its British'ish and deserves encouragement if it is better than the competition and is of a quality which befits its price tag,but take a look at this- My guess is that it will endure another couple of days at the Telford classic show,amid plenty of back slapping and hand shaking,no doubt,then quietly disappear.

Join the queue-it starts in the van.

Its a road bike chassis.(It could be an HS scrambles frame,but v unlikely) The engine is a 1952 VHA 499cc,fitted with a later,post 1955 cyl head. The timing cover is an NH (350cc) item which has had the letter T added at a later date.

Thanks,still wont work for me,must be a prob here..

I've not been able to get the TMX News website up lately. Anyone else had the same prob? - or know if its still going?

The bike sold on e bay a year or so ago. Then i saw it at an autojumble about 6 weeks ago. It could be a Parkinson barrel-looks very similar to the one on my Butler trials bike

They were on when i checked this morning,and again when i checked just now.

The new classes always were going to cause problems, and its a shame its come to a head at this event which,in my opinion is the best in the series. My guess is that before the start of the event,the club were probably not aware of the negative impact the changes would have,even though relatively few people are affected by them, now it is dominated by Trail bikes and Twinshocks. If the rules remain,perhaps the club should consider continuing without help from the series sponsor in the future,reverting to classes which encourage the bikes that the event was started for in the first place. More importantly,someone (or commitee if you want to share the blame) dreamt up the class changes,and despite my earlier post,nobody has responded,which to me has all the hallmarks of the ACU. The changes were done for a reason, and the only one that comes to mind,was to discourage some of the pre unit entrants.

1979 was the first year-it was a closed circuit trial in those days at Camp and Warren. There were only 3 classes- Pre 65 Four stroke under 340cc Pre 65 Four stroke over 340cc Pre 65 Two stroke I seem to remember that the classes were not too popular, as it allowed BSA B40's (at 343cc) into the big capacity four stroke class,not what was intended. So,a couple of years later,1981,the capacity threshold was raised to 345cc. All the bikes were pretty standard. On the Ariels,Ariel Leader hubs were about it.. I think Trail bikes started in 1992.

There were 7 Pre units on the hard route last year,admittedly a lot short of the 32 at the first event in 1979,followed by 37 the following year.

They have got it wrong Charlie, and i suspect we will never find out whose bright idea it was, unlike when they get things right, and subsequently crawl out of the woodwork to take the credit. I know that you,along with others spectate at this event, and i'm sure its the pre units (on the hard route) in particular which you go to see. Good luck with the Stoneleigh event, by the way, i'm sure its going to be a big success, i cant get,but i will make sure the Ariel is there!

That sums things up exactly. This event has always suited Pre units even on the main route, with sections pretty much as they were in the day,so its a shame that a class which is diminishing year on year anyway,has been further discouraged by the new rules.

Its certainly confused me, and is why i didnt enter on a pre unit. The regs for the Sammy Miller series say Pre Units on the hard route go in the British Replica's class, yet now,after the closing date there seems to be a class on the hard route for Pre Unit bikes?

No, That is easy route. The only way to get a ride on the hard route with a pre unit springer is to go in the british replica's class. The Sam Cooper has always kept the severity of sections on the sensible/easy side, and pre unit springers have often posted best performance of the day over the years. I'm sure Dennis Bridges never envisaged a day when there wasnt even a class for them.

There isnt a class specifically for pre unit springers on the hard route anymore,which is a shame.