Check out the newest ride in the Cannondale On. Gravel Series, Grand River Gravel Ride in support of Water Cycles.
A little longer, a little less rowdy, a lot of fun, and butter tarts for sale at the finish line.
Course
Featuring an 110k and 50k epic lap with lots of rolling gravel and beautiful views.
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GPS route coming soon.
2026 map coming soon
Schedule
8:00am
Parking / Sign-In open
9:00am
Sign-In closes
10:00am
100k race starts
10:15am
50k race starts
Post Race/Ride Activities
Registration Information
100k
December 1 - December 24 $85
December 25 - July 17 $100
July 18 - August 1 $120
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50k
December 1 - December 24 $65
December 25 - July 17 $75
July 18 - August 1 $95
What do you get?
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Olway Performance Drink on course
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Drop bags brought to the aid station for you. (Don’t drop things that are valuable! The bins will be coming back after the last rider goes past!)
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Finisher pint glass
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A killer course with a lot of different types of "gravel"
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Professional first aid by Odyssey Medical
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"Over-marked" course so you can enjoy the day without worrying about getting lost
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Inclusive and encouraging vibe
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GPS track to follow so you are super confident
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Wicked draw prizes!
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Aid station on course
Important!
Highway Traffic Act
The Highway Traffic Act applies. The roads are not closed. You are expected to follow all traffic laws.
If you are caught breaking them you will be disqualified. There is a lot of climbing and rough surface and challenging roads. You will not win or lose the race by running a stop sign, so don’t!
Hand-ups/Feeds
All hand-ups/feeds must happen in the aid stations. If you take help outside the aid stations you risk disqualification.
For safety and to keep it fair for all riders you are NOT ALLOWED to receive assistance from non-racers or bottle/food hand ups outside the aid stations. We want a level playing field so that everyone KNOWS how awesome you were and no one wonders if it was the friend handing you bottles at the top of the climbs that helped. We also want to keep non-essential traffic off the course to keep riders safe.
Riders can help others participating. So if someone crashes or has a mechanical, please do stop and help.
Signage
There will be lots of signs on course. Our arrows are orange UCI-shaped arrows on a white background. We also have an X for when you miss a turn.
These are used at our discretion and are not at every turn, so keep your head up, or use your GPS.
Odyssey Medical
Odyssey Medical will be on site to take care of any first aid issues. If you or a rider near you is injured during the race call Odyssey Medical (on number plate) or report to one of the Aid Stations.
What bike can I ride?
Anything you want as long as it is safe!
Since Cannondale is our title sponsor, let’s say this course would be great on a Topstone. It would be super fast on a Super Six EVO SE. And it would be a butter-smooth, yet fast ride on a Topstone Lefty. Make sense?
Or you can be like Team Colin and ride 33mm tires no matter what and have a great time. You can ride a mountain bike, or even a fat bike! As long as you have fun.
Substance Projects' Weather Guarantee
Weather is always challenging and can completely change a race. So we developed the Substance Projects 100% Weather Guarantee: We guarantee that 100% of the course will have weather.
If any section doesn’t have weather we will refund you that percentage of your entry fee upon proof there was no weather.
Whining Policy
We have a strict "No Whining" policy. If it was all easy and downhill then it wouldn’t feel like you accomplished anything!
Inclusive Race
These are races for everyone! In the spirit of equity and inclusion we celebrate difference and especially encourage those who have historically been excluded from sport.
See our Inclusion Statement on our About Us page.
Cancellation / Refunds
There are NO REFUNDS for those who can’t make it on race day or for cancellation of the event for any reason.
If the event cannot proceed, registrants will have their entry carried over to the re-scheduled date or have credit for another Substance Projects Event.
