The 2025 edition of the One Speed Open will take place on March 29th, 2025.
The OSO is the OG NoCo gravel event, first taking place in 2005. V1 was a fundraiser so the legend Rafael Millan-Garcia could return to Mexico to visit his ailing father. The lowkey grassroots gravel race has happened more or less every year since.
OSO Info:
- March 29th, 2025, from Lee Martinez Park. Start time 9am. Show up at 8:30 to sign waiver and prove reg.
- Registration: Suggest minimum $20 donation to EITHER
- Friends of FoCo Fondo OR Alianza Norco
- Registration is complete with your confirmation of donation. Register whenever you want. Mark category entering, Men, Women, Non-Binary
- If you’d like to volunteer, email kristenarnold6@gmail.com
- The one and only course for 2025 – 60 miles, 80% unpaved – Course will be released the day before race day via a cue sheet at race start and a Strava link here. 1 aid station on course that riders will hit twice.
- Prizes for each category fast finishers and best costumes. Engrave winners cup for each category post race at Brave New Wheel.
- Bring your own T- Shirt for on-site screen printing – $5.
- Post race party at Brave New Wheel.
- OSO Instagram
The Rules:
- Your bike must only have one usable gear. See how-to video here
- To be scored for prizes, you must follow the course. If you’re just looking to have a fun day out at party pace, register, and do as much of the course you want!
- Time Bonuses – Maximum 4 minute time bonuses. Bonuses are only awarded at the aid station. Time bonus for nasty ingestibles and feats of strength will be updated closer to event day. Snacks and water will be provided at the aid station.
- The roads are open, this is an underground event, use good judgment while riding on open roads, look out for each other. Be mindful of traffic and road crossings.
- Don’t be a dick
- Neutral Roll out from Lee Martinez park at 9am. Course is neutral until Vine and Lemay stoplight. Course finish line is just before the west gate on Richards Lake B road. Take a selfie picture with the clock at the finish location to prove your finish time.
Historical texts:
Alianza NORCO is a non-profit organization formed largely by immigrants from our northern Colorado community. In partnership with multi-ethnic allies and pro-immigrant groups, our goal is to uplift our immigrant families both newcomers and established and mixed-status communities, creating pathways to opportunity, self-determination, and meaningful social progress through collective action and mutual support.
Friends of FoCo Fondo believe that the world is better when we have access to bikes. Whether you want to use them for transportation, exercise, competition, or just sheer joy, bikes are transformative. They are a three-way hex wrench for connection, self-belief, and reveal the power in choice…and they are just really f***ing fun.
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