Bike event · 8:00am start
100K Gravel Enduro Rally
Party pace, 4 timed segments, 100% fun. Ride at a chill pace with your crew, then give it your all on the timed segments. Each one tests a different skill and your combined segment time is your result.
How an enduro works
Chill between. Send it on the clock.
Unlike a normal race, the transfer sections are not timed. Roll with friends, stop for photos, hit the aid stations. When you get to a timed segment, the chip does the rest. Your four segment times are added up and that is your result.
Prizes for top 3 M/F/NB in each segment and overall. Party pace riders are just as welcome as the pointy end.
4
timed segments
10:30am
cut off at Rowena (mile 24)
100km
gravel, dirt and pavement
The course
Four timed sections, each for a different skill
Note: 10:30am time cut off at the entrance to Rowena, mile 24. Reach it later and you turn around and head down Lefthand Canyon.
100K Gravel Enduro route
Open in Ride with GPS →
Segment 1
Riding blind
We will not reveal the first section until you ride it on race day. It will not be technical, but it will take some focus.
Segment 2
Singletrack: take on Rowena
This slightly uphill historic gold mining road is a fun and adventurous connection between Lefthand and Sunshine Canyon.
Segment 3
Rolling hills
Test your climbing and descending. Both climbs are paved, there is one gravel descent and one paved descent.
Segment 4
All out speed
The final challenge is a flat paved charge into Lyons. Be sure to save some energy for this one.
Sorry, the schedule does not allow it. They start too close together. The Run / Bike Combo pairs the 5 mile run with the 50K ride instead.
Yes. There is an 11:30am cut off at the entrance to Rowena for the 100K Gravel Enduro. If you reach this point after the cut off, you turn around and head down Lefthand Canyon.
Most riders finish the 50K gravel course in 1.5 to 3 hours. The 100K gravel course takes 3.5 to 7 hours. The 56.5 mile Road Rally takes 3.5 to 5 hours. The 5 mile run takes 30 minutes to 1 hour, and you are welcome to walk it.
You will see everything from road bikes to mountain bikes. Because the course has gravel, we recommend tires at least 25mm wide. Knobby tread helps with traction. Gravel and cyclocross bikes are the most common, but on a dry day a road bike with wide tires might be faster. You will get the most high fives on a fat bike.
Yes, you are welcome to ride an ebike, but your time will not be eligible for prizes. You also cannot use an ebike to help another rider get a better time.
Other ways to earn the party
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11:00am start32 miles · 1,189ft climbing
50K Gravel Rally
The classic Boulder County loop. Half gravel, half pavement, all fun.
from $109
Details
9:00am + 11:00am start5 mile run + 50K ride
Run / Bike Combo
Run two laps at 9, recover, then roll out on the 50K gravel course at 11.
from $129
DetailsRide 100km. Party like you rode 200.
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