With three wins and a second out of the first four events, reigning champion Donal Griffin leads the Dunlop Hillclimb Championship. Griffin aims to break the 12-year-old record of 40 seconds held by Shaw Lawless for the Curragh hill in the Pine Forest area of the Dublin mountains.
However, the 80-odd starters in tomorrow's event face a bumpier road surface.
Griffin holds the record for the Laragh Hill, near Glendalough, and given good weather the record could well be broken again on Sunday.
Griffin's biggest challenge will come from Karl Cleary in a Metro 6R4, former champion Ronnie Maybin in a two-litre Delta, another previous champion, Jenny Kennedy, in a Crossle 33F and Padraig Forde in the mighty Scott V8 climber.
Sunday's motorcycle races at Mondello are the second combined Irish and Clubman Championship rounds in all classes. The 18-race programme will feature an invitation grand final for the day's fastest riders.
The April meeting had over 200 starters, and Sunday's meeting will include all the leading clubmen - Victor Gilmore, Seamus Greene, Roddy Hayes, Dermot Birdy, Geoff McMullan, Marshall Neill and Sean McCrory.
Simon Byrne is looking good to take the 200cc championship. The young Tallaght man has shown well so far this season on a Honda.
A full line-up of top riders will compete in Sunday's Motocross at Gormanstown. The main championship contenders are Mark Mooney and Dylan Nally on Hondas, Graeme Vigors (Suzuki), Mark Norton (Kawasaki), David Coates (TM) and Mossie Drennan (Husaberg).
