True there is no reason to train but it does help.
Last one SSUK07 was a three lap affair over red and black graded old school trails, all mud/tree roots/steep inclines of which I only achieved 1 lap before extreme knackerednous and self preservation kicked in. Admittedly I was riding a 1970's steel racer with cyclo-x tyres rescued out of a skip two weeks previously, which won me the Shonkiest bike prize but it was still a technical riding extreme challenge of a race.
A bit of trainning would be a good idea including a spot of running as in cyclo-x you do spend a period of the race either pushing the bike or shouldering it. Also some practice of technical riding skills is useful as I'm not at all good with drop offs or jumping obstacles such as rocks or roots !
On many levels SSUK is not a serious race but on others it certainly is and those that win are among the best athletic sports people in the country if not the world !!!!!!!!!!!!!!!
Plus for 2009 I'd like not to have to rebuild my bike by the trailside having totally failed to miss a tree everyone else avoided
Also it would be nice not to collapse as a shaking ball of unfit rubbish after only 2 laps of SSUK04's 3 x laps
I think the Tunnocks Jerseys are available from that company that does many special edition tops such as our own Retrobike ones