totalshell, on 19 February 2012 - 09:50 PM, said:
massive twin shocks entry at todays red rode trial.. fascinating collection of bikes including merlin fantic yamaha honda montesa bultaco swm suzuki. the pre65 still largely out numbered the twin shocks 46 v 26.
peformance wise in the hard route the pre 65 bikes out shone the twinshocks easily in pre 65 you had to drop less than 20 to be top ten or 36 to be top 15 in the twin shocks you could drop 27 and 55 respectaively to achive the same place finish
the difference was even more marked but the result was the same in the clubman class, the best placed clubman twinshock would have been 9th in the pre65 class!!
overwhelmingly the majority of the pre65 stuff was specialist gear whilst in the twinshocks mods were few and far between with most bikes stock the only exceptions being forks.. 38mm is the route being taken with a mix of modern monoshock folks and yolks been used under an argument discussed above.. why pay money to have stuff as good as it was in 1980 when you can spend 100 quid at telford and get a complete front end from a recent mono shock.. a bit of alloy welding for the brake plate etc and job done..
Just had a look at the results and the two riders who tied for first Pre65 (and overall) are hardly mugs.... they are in the top few Pre65 riders in the country so the result isn't really a surprise.
Their bikes are more competitive than most pre80 standard twinshocks but not later bikes like 200/240/300 Fantic, late model SWM, Armstrong, Aprilia etc. Having said that, the event was a low scoring one for the winners in each class and the result would be more a test of concentration as opposed to who had the better bike. A set of 38mm forks on a twinshock wouldn't offer any advantage.
To illustrate (and this is the only reason I mention it) I came out top overall on the B route of a modern trial at the weekend on my Bultaco. Obviously all the modern bikes have at least 38mm forks, more power, better rear suspension, brakes etc. However, the sections were within the capabilities of the Bultaco, consequently the superior performance of the other bikes made no difference. The sections weren't hard enough to exploit the difference. Had I ridden the A route - different matter...
I lost 9 marks, and 5 of those (not a 5) were down to an erratic and sticking front brake. The remaining 3 and 1 were down to my mistakes. The bike (dodgy front brake excepted) could have cleaned the trial. Had I had discs, or at least a front disc, I would have halved my score.
Out of all the modern mods you can make to a twinshock, discs would be by far the biggest advantage, way more than modern forks. I don't like them personally and prefer them not fitted, but 38mm forks add virtually nothing in terms of performance advantage in the standard of events the bikes are ridden in.
Discs however, would and thankfully they are banned.
And in reality - how many of those twinshocks actually had 38mm forks?