Seventeen-year-old Mirfield trials rider Jon Chambers gave Gomersal expert John Hillam a tough challenge at Harden Moor on Saturday where the Spen Valley club ran the opening round of the Redhouse Construction trials championship series.

Chambers, fresh from the national youth ranks, completed the course with a loss of just seven marks, five more that winner Hillam who lost a single mark on sections four and six.

Leeds youngster Chris Hunt won the youth class riding his Gas Gas machine and finished fifth overall in the hard course class.

Sixty-five riders contested the opening event in the Redhouse series.

l Dan and Ben Hemingway headed the Wetherby trial results at Bayliss Gap Farm on Sunday ahead of Haworth rider Wayne Braybrook.

Only 55 riders competed in the annual Filtrate Trophy trial covering a 14-sections three-lap course.

Boston Spa rider Martin Wilson won the clubman class by a single mark from Skipton's James Moorhouse.

Cullingworth's Phil Disney held off Cross Hills' Nathan Wrigglesworth and Skipton's Aran Drachenberg for a top six result.

Silsden's Danielle Whitham struggled around the tough woodland course to finish second to Sam Yeadon in the clubman youth class. Danielle had 146 penalties out of a possible 210 in the tough event.

l Dougie Lampkin of Silsden swings into action on his new factory prepared Beta trials machine on Friday night in Marseille in what will be his first ride on the Italian two-stroke machine.

Naturally Lampkin has chosen the hardest event on the world indoor trials championship calendar; the opening round of the series.

It would be understatement to say that many eyes in the motor sport world will be focused on the Silsden multi-world champion.

Repsol Montesa HRC will be in a huddle wondering whether they should have retained the British and world trials star.