Open Bikes
OPEN may be small by design, but its influence on modern gravel and all-road cycling is anything but. Founded by industry veterans Gerard Vroomen (Cervélo) and Andy Kessler (BMC, Cervélo), the brand helped ignite the gravel movement with genre-defining bikes that blend wide tire clearance, minimalist design, and precision-tuned geometry for unmatched versatility. Today, OPEN continues to refine that formula with updated versions of its beloved frames, including the OPEN UP (gravel endurance), the ultralight UPPER (gravel race), the more aggressive WIDE (gravel adventure), and the road-oriented MIND—all engineered to disappear beneath you, so nothing stands between rider and road, or trail. Whether you're chasing smooth tarmac, zipping along champagne gravel, or navigating chunky backroads, OPEN delivers a ride that’s fast, clean, and radically simple.
The brand that started it all to ride all roads
From its roots in gravel innovation to its newest all-road and road offerings, Contender is thrilled to offer OPEN’s complete lineup, which reflects an obsession with qualities of simplicity, versatility, and performance. Every frame is stripped down to the essentials, free from gimmicks but loaded with thoughtful engineering, from ultra-wide tire clearance to dropped chainstays and refined carbon layups. Whether you're planning a multi-day bikepacking trip, chasing fast miles on mixed terrain, or just looking for one bike that does it all, there’s an OPEN model designed to seamlessly support your ambitions, enabling the ride to take center stage.
- OPEN MIND (All-Road): the MIND is OPEN’s answer to the modern road bike—a minimalist carbon frame built for riders who value handling, responsiveness, and clean aesthetics. With clearance for up to 32mm tires, it blurs the line between endurance road and light all-road, making it ideal for smooth tarmac, broken pavement, and everything in between. Internal routing, subtle shaping, and balanced geometry give it a composed, confident feel at high speed or during long days in the saddle.
- OPEN UP (Gravel Endurance): the bike that started it all, the UP set the standard for modern gravel bikes with its groundbreaking geometry and dual-wheel compatibility. New for 2025, with models delivering by year-end, the OPEN has optimized the UP for long-haul comfort and go-anywhere versatility, with the ability to fit 700c or 650b wheels and tires up to 2.1". Whether you're linking forest service roads or just veering off the beaten path, the UP offers an unmatched blend of comfort, stability, and efficiency.
- OPEN UPPER (Gravel Race): a lighter, racier sibling to the UP, the UPPER uses high-modulus carbon to trim grams while maintaining the same proven geometry. Also revamped for 2025, with models delivering this summer, OPEN designed the UPPER for gravel riders and racers who want every edge: climbing speed, snappy handling, and compliance where it counts. With clearance for big tires and the same wheel-size flexibility as the UP, the UPPER is equally at home on race courses or long-distance, mixed-surface rides.
- OPEN UPPER CONCEPT (Gravel Race, Limited Edition): new for 2025 and limited to just 250 bikes worldwide, the UPPER CONCEPT is OPEN’s equivalent of a concept car: a no-compromise gravel race bike, built not for mass production, but to showcase what's possible when design, materials, and manufacturing are pushed to the limit. Delivering now, the UPPER CONCEPT features the same fast, ultra-capable geometry as the standard UPPER, but is built entirely in Portugal using a new high-precision carbon layup for improved stiffness, reduced weight, and tighter manufacturing tolerances. Highlights include a lighter 0.9K carbon weave, a fully integrated headset, and a matte/gloss paint scheme exclusive to the CONCEPT. A feat of engineering, the UPPER CONCEPT is designed to push boundaries, and to deliver dream rides.
- OPEN WIDE (Gravel Adventure): the WIDE pushes OPEN’s gravel concept even further, with clearance for massive, 2.4" tires while preserving the brand’s hallmark agility and efficiency. The WIDE is built for extreme off-road and adventure riders who seek out the roughest terrain, from high-alpine trails to remote desert tracks, without compromising speed. Short chainstays, a dropped drive-side stay, and progressive geometry make the WIDE a true all-conditions adventure machine, poised for single track and bike packing alike.
The OPEN U.P. is a high-speed bike that embraces a versatile "go anywhere" attitude. It thrives on mixed surfaces and dirt, encouraging riders not to be deterred from pursuing thrilling adventures. With its exceptional performance and capability, the U.P. is ready to conquer any terrain you encounter, from smooth roads to rugged off-road paths. Embrace the spirit of exploration and unleash your adventurous side with the OPEN U.P.
The OPEN WIDE is where high-quality carbon fiber meets chunky tires, resulting in a bike that craves to conquer gravel paths. Designed for comfortable speed and extended adventures, this bike offers the perfect balance between performance and endurance. With its wide tire clearance and robust construction, the OPEN WIDE is ready to handle diverse terrains with ease. Embrace the joy of exploring the great outdoors with the OPEN WIDE, as it opens up new possibilities for thrilling rides and unforgettable experiences.
At its core, the OPEN MIND frame is a high-performance road bike engineered with efficient tube shaping. This design prioritizes elements such as high strength, optimal power transfer, and exceptional ride quality. The result is a bike that delivers outstanding performance for road enthusiasts. The OPEN MIND frame seamlessly combines cutting-edge technology and thoughtful engineering to provide riders with an unparalleled riding experience. Experience the perfect blend of strength, efficiency, and comfort with the OPEN MIND road bike.
The Open U.P.P.E.R takes the category that Open helped create to new heights, weighing approximately 180 grams lighter than the Open U.P. This bike offers an even more elevated option for riders seeking exceptional performance. With its reduced weight, the U.P.P.E.R delivers enhanced agility and responsiveness, allowing riders to push the limits of their cycling experience. Embrace the pinnacle of performance with the Open U.P.P.E.R and elevate your riding to new levels.
At Contender Bicycles, our best tools for selling bikes are the people who ride them. Everyone at Contender Bicycles has extensive experience riding bikes across many brands. If you have any questions regarding an Open or want to discuss build options, we are here to help.