Who’s Ready For 4 hrs of Iowa Singletrack?

We’re Ready!

As we move into warmer weather and our 2nd marathon race of the year, remember to check out the full schedule of events HERE! We have a full summer of great trails and awesome rides. Do not miss our mid-year celebration at the Liberty Bell Cup on Saturday, July 7, 2018 at the Whiterock Conservancy which is also our Iowa State Mountain Bike Championships!

See updates from the ICORR group below. Remember – online registration ends Friday, May 18.

S3: Sugar Cubed Marathon

Get ready for the Sugar Cubed Marathon, the second of five 2018 IMBCS Marathon Events. This separate Marathon-Only event allows Marathon Riders to experience everything that Sugar Bottom has to offer – 12 miles of classic Iowa singletrack, 1400’ elevation gain – three times. S3: Sugar, Cubed.
This year we will again run the race in the normal direction of travel and will cap the laps at three, you’ll be scored for completing anywhere from one to three laps.

S5: Single Speeds Scored Semi-Separately (race within a race)

Along with the Open Mens and Womens IMBCS Categories, we will again recognize the intrepid Single Speed riders. We’ll score SS with the main field, but there will be some special awards for the top three SS riders in the field.

Post Race Food Provided

Thanks to Geoff’s Bike and Ski for once again providing post race eats! They will have the grills fired up for burgers and brats again – a perfect post race meal.
Hope to see you there!

Get Registered

Pre-registration available at USA Cycling.

Event Website