This is a trial which celebrates Yamaha TY trials bikes (the twinshock and air-cooled monoshock series).
It is also a normal Mototrial so there will also be modern bikes competing.
There will be TYs competing against modern bikes in many of the normal grades as well as the usual TYs competing against other twinshock bikes in twinshock class. There may be some interesting results.
More details and Supp Regs can be found on the trials.com.au website
Undullah is a few km west of Cedar Grove (between Brisbane and Beaudesert)
I'll be on a standard-looking TY250A
David Lahey