22st annual race at Mackay - August 5, 2006 Intermountain Orthopaedics White Knob Challenge A Knobby Tire Series Race

Intermountain Orthopaedics again sponsors the 22nd Annual White Knob Challenge in Mackay, Idaho. This is the longest-running mountain bike race in the Northwest and a designated NORBA Classic.

This NORBA classic cross-country race returns Saturday August 5.

Racers take off from Main Street on a 9-mile ascent that features 2,300 feet in elevation gain, followed by a rip-roaring roller coaster descent to the valley floor.

Start time: High noon

Prizes and White Knob challenge medals for the top three will be awarded to finishers in the more than 30 race categories.

Cross Country racers get points towards the Knobby Tire Series Championship

The White Knob Challenge Sunday Exploration

Entry Fee and Information

Register online at www.sportsbaseonline.com or send entry fee with a standard NORBA release -- $30 for pros and $25 for all others to: LRC, 1516 Hays, Boise, ID 83702 or contact Kurt Holzer (208) 890-3118 or by email at lrc_board@lycos.com ($10 late fee for day of race sign-up)

Free camping is available in the Mackay Tourist park.
Race fee includes a free meal ticket for the race picnic on Saturday.

The Intermountain Orthopaedics White Knob Challenge supports and the White Knob Historical Preservation Society

USA Cycling/NORBA permit 2006-749

Knobby tire Series information is available at www.knobbytireseries.com

Lost River Cycling information is available at www.lostrivercycling.org

Special thanks to the residents of Mackay for their long support of the White Knob Challenge.