Hedgehog best fit for riders with an inseam of 17" to 21". First time riders feel safest with their bottom on the saddle and their feet flat on the ground. That's how a child with an 18" inseam will fit the Hedgehog with the seat post dropped as low as possible. Once kids get more comfortable on two wheels, they'll want to sit on the saddle with the balls of their feet on the ground. Thus, a confident rider with a 17" inseam and a first-time rider with a 19" inseam will each ride with about the same seat height.




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"Working Hard to Stay Small"
From the minds behind BMC and Cervelo
Andy and Gerard created Open in search of a more pure mission: Design bikes they want to ride, build them with high quality materials in small batches, and sell them to other people looking for a great bike, great rides, and great service.
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The Open U.P. is designed to use road, road plus, and even mountain wheels with uniform handling.
- 2.1" wide tires on mountain wheels
- 47mm tires on 650b wheels
The Open U.P. can be configured in a variety of ways for confident, fast, rides on all surfaces.