OPEN UPPER CONCEPT
Product Details
The OPEN UPPER CONCEPT marks a new chapter for OPEN, introducing a bold direction for their next generation of bikes. This exclusive model is a limited-edition concept, available in just two sizes (Medium and Large) with only 125 units per size to celebrate the OPEN 12.5 milestone. Once the molds are retired, this unique frame will never be produced again, making it a rare collector's item. But don’t worry if you don’t fit into the available sizes—the full range of U.P. models, with five sizes, will be released in Spring.
So, why a concept bike? OPEN’s philosophy has always been about simplicity and longevity, with innovation focused on improving what already works. The U.P.PER. CONCE.PT is a testament to this mindset, showcasing new shapes and design features while staying true to the brand’s DNA. It’s a bike that emphasizes the balance between aerodynamics and comfort, a core principle for OPEN, especially in gravel riding. While aerodynamics can offer advantages, comfort and compliance are paramount to achieving real-world speed, allowing riders to maintain their position and power for longer durations.
The new frame features a subtly reshaped downtube, designed for improved airfoil efficiency without compromising compliance. Similarly, the headtube is narrower but deeper, reducing frame drag while maintaining the ride comfort that OPEN is known for. With a clean design and minimal features—like straight chainstays, no front derailleur mounts, or fender mounts—the UPPER CONCEPT strips down to the essentials, prioritizing performance and aerodynamics without unnecessary complexity.
This bike is not just a concept; it’s the first frame produced in collaboration with CarbonTeam in Portugal, marking a shift to European production for even higher quality and craftsmanship. Though production in Europe is more costly, OPEN has chosen to embrace this challenge to bring a new level of customization and performance to the brand, all while keeping pricing as close as possible to current models.
The UPPER CONCEPT is not just a bike—it’s a milestone, a limited-edition creation that embodies everything OPEN stands for: innovation, performance, and craftsmanship.
KEY FEATURES
- OPEN All-Carbon Frame
- OPEN Carbon One-piece bar stem combo
- OPEN Carbon Seatpost
| Component | SRAM Rival/GX AXS Transmission Mullet | SRAM Rival AXS XPLR | SRAM Force/X0 AXS Transmission Mullet | SRAM Force AXS XPLR | SRAM RED/XX SL AXS Transmission Mullet | SRAM RED AXS XPLR 13-spd | Shimano GRX Di2 1x 11-spd | Shimano GRX Di2 2x 11-spd | Shimano GRX Di2 2x 12-spd |
|---|---|---|---|---|---|---|---|---|---|
| Levers/Calipers | SRAM RIVAL eTap AXS HRD Lever/Caliper | SRAM RIVAL eTap AXS HRD Lever/Caliper | SRAM Force AXS HRD eTap D2 Lever/Caliper | SRAM Force AXS HRD eTap D2 Lever/Caliper | SRAM RED AXS HRD Lever/Caliper | SRAM RED AXS HRD Lever/Caliper | Shimano ST-RX815 GRX Brake/Shift Lever + CALIPER | Shimano ST-RX815 GRX Brake/Shift Lever + CALIPER | Shimano ST-RX825 GRX Brake/Shift Lever + CALIPER |
| Crankset | SRAM Rival DUB Wide Crankset | SRAM Rival DUB Wide Crankset | SRAM Force DUB WIDE Crankset | SRAM Force DUB WIDE Crankset | SRAM RED AXS DUB WIDE Crankset | SRAM RED AXS DUB WIDE Crankset | Shimano GRX FC-RX810-1 Crankset | Shimano GRX FC-RX810-2 Crankset | Shimano GRX FC-RX820-2 Crankset |
| Front Derailluer | N/A | N/A | N/A | N/A | N/A | N/A | N/A | Shimano GRX Di2 FD-RX815 | Shimano GRX Di2 FD-RX825 |
| Rear Derailluer | SRAM GX Transmission AXS Rear Derailleur | SRAM Rival XPLR AXS Rear Derailleur | SRAM X0 Transmission AXS Rear Derailleur | SRAM Force XPLR AXS Rear Derailleur | SRAM XX SL Transmission AXS Rear Derailleur | SRAM RED XPLR AXS 13-spd Direct-Mount Rear Derailleur | Shimano GRX RD-RX817 Di2 Rear Derailleur | Shimano GRX RD-RX815 Di2 Rear Derailleur | Shimano GRX RD-RX825 Di2 Rear Derailleur |
| Chain | SRAM GX T-Type Chain | SRAM Rival Chain | SRAM X0 T-Type Chain | SRAM Force Chain | SRAM XX SL T-Type Chain | SRAM Red Chain | HG701 chain | HG701 chain | CN-M8100 Chain |
| Cassette | SRAM GX T-Type 10-52t Cassette | SRAM Rival AXS 10-44t Cassette | SRAM X0 T-Type 10-52t Cassette | SRAM Force AXS 10-44t Cassette | SRAM XX SL T-Type 10-52t Cassette | SRAM RED AXS 10-46t Cassette | Shimano CS-M7000 11-46t Cassette | Shimano HG700 11-34t Cassette | Shimano CS-R8100 11-34t Cassette |
| Rotors | SRAM Centerline Rotor | SRAM Centerline Rotor | SRAM Paceline Rotor | SRAM Paceline Rotor | SRAM Paceline X Rotor | SRAM Paceline X Rotor | Shimano SM-RT64 Rotor | Shimano SM-RT64 Rotor | Shimano SM-MT800 Rotor |
| Battery/Extras | Batt/Charger | Batt/Charger | Batt/Charger | Batt/Charger | Batt/Charger | Batt/Charger | Battery/Wires/Charger | Battery/Wires/Charger | Battery/Wires/Charger |