An epic ride to support an amazing cause.

Come spend a day in the saddle and ride one of the best gravel routes in the greater Boise area! The Jackass Grinder brings friends and family together to ride for an amazing cause. Two course lengths and a free kids ride offer something for everyone. In true Idaho fashion, a loaded potato bar is included with your entry. The raffle is over the top with all kinds of great prizes, including a chance to win a Corvette. This is the inaugural year for the Jackass Grinder which promises to become a Boise classic!

All proceeds for this ride go directly to the Juvenile Diabetes Research Foundation!

How is this possible? With your participation and Sponsors (please be sure to thank them!).



Riding the jackass is no joke! This course has all the challenges for those looking to push themselves. The course starts off at a trot and once you are good and warmed up, really starts to buck at mile 33. Four fully supported aid stations allow for rest and replenishment along the way (don't want to get saddle sore...) At the end of the day, you can proudly say you rode the jackass!!!

Start Time
54 miles
5,000+ ft
Aid Stations


Looking for a tamer, shorter ride? Than the burro is for you. With just enough of a kick, the burro will make time in the saddle worth it. One fully stocked aid station will replenish you before you head back to the barn!

Start Time
14+ miles
1200 ft
Aid Stations


The burrito is the perfect way for kids to get a taste of the gravel scene. One loop around the expo and they will be hungry for more!


Another way you can help raise money for JDRF is to buy raffle tickets. We've got some amazing stuff to give away, here are just a few of them...

Every item has been donated, so:

Every dollar spent on raffle tickets goes directly to JDRF.

  • Hat Ranch Winery
    Wine Tasting - $500 value
    2 Hour Wine Tasting for 20 People


Friday - June 21st
5:00pm - 7:00pm Packet Pickup
Saturday - June 22nd
7:00am - 1:30pm Registration / Packet Pickup
7:00am - 4:00pm Expo
8:00am Jackass Ride start
10:00am Burro Ride start
11:00am - 4:00pm Spuds
1:30pm Burrito Ride start
2:00pm Raffle


Show me the map

In true gravel fashion, the start/finish doesn't even have a proper address. But don't worry, it's easy to get to.

We'll be along Willow Creek Rd, Eagle, ID 83616.

3.4 miles north of Eagle Rd and Beacon Light Rd.

Eagle Rd becomes Willow Creek Rd.

To Benefit

JDRF is the leading global organization funding Type 1 diabetes (T1D) research. Founded more than 45 years ago by parents determined to find a cure for their children, today JDRF exists for the millions of people affected by this disease. JDRF supports the best researchers doing the most promising, cutting-edge science to cure, prevent and treat T1D.


These great sponsors help to pay for the event, so that every dollar you spend goes to JDRF.