Chino Grinder course

What is the Chino Grinder?​

The Chino Grinder is a 106 mile-long bicycling endurance challenge on the Perkinsville Road, consisting of a 42 mile paved section and a 61 mile gravel section from Chino Valley, Arizona (12 miles north of Prescott) to Elk Ridge Ski Area near Williams and back to Chino Valley.

Who can participate in the Chino Grinder?

The Chino Grinder is an event for the experienced and well-trained endurance bicyclist. Although not technical, this is a challenging course with 9700 feet of climbing. If you have not completed a century ride in the past you should consider signing up for the 42 mile course or the relay the first year to be able to gauge your level of fitness. This will be an annual event so you will have the opportunity to try the 106 miles the next year.

What kind of bike will I need?

Almost any type of bicycle can be ridden on gravel roads. You could definitely do it on a roadbike but the skinnier tires would be more prone to flats and the road bike calipers limit mud/debris clearance in case of wet weather (not likely in Arizona but something to consider). A Cyclocross bike would be a good choice, tough enough for the gravel and light for when you hit the pavement. A mountain bike would be the most comfortable but you will pay a price for the weight, especially on the 22 mile climb from the Verde River up to Williams. There are also bikes made specifically for gravel racing.

What is the course like?

The course is comprised of two county maintained roads. It is an out and back course 106 miles in length. Going out the first 30 miles is gravel and the next 23 pavement (short section of gravel leading to the ski area). The gravel section varies between smooth hardpack and some areas of washboard, there a number of wash crossings but generally speaking they do not slow you down.

Will the course be marked?

Yes. This website contains a detailed map that you should checkout before the event. Major crossroads will be signed. Aid Stations will be located near the Verde River Bridge (21 miles from start, also the 42 mile turnaround) and at the Elk Ridge Ski Area near Williams (53 miles, also the turnaround). Aid Stations will be stocked with water and refreshments. A SAG vehicle will follow the last rider on the course. (Tip: The restaurant at the Ski Area will be open for this event, bring some cash.)

Am I allowed to receive any outside assistance during the event?

No, outside support at any point other than official checkpoints will result in disqualification. Riders may assist other riders by any means and at any time.

What equipment should I carry on the Chino Grinder?

Outside support (except from other riders) is prohibited other than at official check points located at the the aid stations. You should plan on being as self-reliant as possible. Here are some suggested items to carry when riding the Chino Grinder.

– master chain link
– spare tubes (2)
– multi tool
– chain break tool
– warm gear (course goes above 7500 ft at highest point)
– tire levers
– pump/ CO2
– cell phone
– sun screen
– patch kit

May I have a support crew follow me along the route?

NO. Support crews are not allowed on course. We will provide a SAG vehicle that will provide assistance if a mechanical issue causes you to abandon the event. Additional vehicles on the course will compromise the event for the participants, especially the dirt section. If a support crew is found to be on course, that rider will be immediately disqualified from the event.

How many different classifications will be offered?

We will have eight competitive classifications for the 100 mile Course and two each for the 42 mile and 53 mile… Plus the Relay.

106 Mile Men

  • 39 & Under
  • 40 to 49
  • 50 to 59
  • 60+
      106 Mile Women

  • Open Women–39 & Under
  • 40 to 49
  • 50 to 59
  • 60+
Two Person Relay

  • Coed Duo
  • Male Duo
  • Female Duo
      42 Mile & 53 Mile

  • Open Men
  • Open Women


 If I bring my family, will they have anything to do?

Yes. The Chino Grinder is a family run event aimed at entertaining entire families! Follow us on Facebook for more information.

Is lodging/camping available in the area?

You betcha, in addition to the hotels in Chino within riding distance to the Start/Finish there are numerous hotels in the town of Prescott located 25 minutes from the start line.

Dry camping will be available at Old Home Manor Park Friday and Saturday for a $5 donation to the Chino Valley Mountain Bike Club. The park will open at noon at Friday May 2nd.

Primrose Inn and Rv
1304 Arizona 89
Chino Valley, AZ 86323
(928) 636-2894

Days Inn Chino Valley
688 Fletcher Ct,
Chino Valley, AZ 86323
(928) 636-0311