C/Duro Shremeeq 1

 


SHREMEEQ — From Whitewater rafting to World Cup Enduro racing
What happens when an ex whitewater racer & carbon specialist, a national enduro champion, and an automotive designer join forces? Meet C/DURO, a boutique brand born in the Czech Republic that is looking to redefine how we think about carbon fiber construction in the MTB world.
From the River to the Trail
The C/Duro story begins with Ondra Uher. Before he was building frames, Ondra was a representative for the Czech Republic in whitewater downriver racing. In a sport where victory is measured in hundredths of a second and equipment must survive violent impacts against rocks, Ondra became a master of carbon lamination. After years of producing world-class racing paddles and technical tubing, he turned his sights toward his other passion: mountain biking.
Finding that mass-market frames lacked the specific stiffness and geometry he craved, Ondra began prototyping his own enduro frames. What started as a "garage project" quickly showed potential that couldn't be ignored.
The Fateful Meeting in Sušice
The project shifted into high gear in 2024, however the story begun already in 2022. On the technical, rocky trails of Sušice, Ondra met Vojta Bláha, a star of the Czech enduro scene and a newly crowned National Champion.
The two shared a singular vision:
1.    The Athlete’s Need: Vojta required a machine capable of surviving and winning at the highest level of the Enduro World Cup (EDR).
2.    The Engineer’s Goal: Ondra wanted to prove that the Czech Republic could produce the most advanced carbon frame in the world.
How the name came to be
The name ShremeeQ came together by a pure accident - in a pub in Sušice, while we were trying to find a name that actually matched the character of the bike.
At some point, Vojta said “Šemík!” - a mythical horse and a well-known legend from Czech folklore about a knight and his faithful horse, which saves him from captivity.
That was it.
ShremeeQ — Šemík, built for shredding.
Asking about the Q? A bit of a satire aimed at Czech car manufacturer ŠKODA off-road model names.

 
A "Dream Team" of Czech Engineering
To ensure the SHREMEEQ was more than just a prototype, they brought in industry heavyweights to refine the platform:
•    Milan Čižinský A legendary figure in the Czech bike industry and one of the world's first pioneers in DH carbon frame construction. A life-long racer and professional designer who focused on the "racing ergonomics" and aesthetics that separate a good bike from a winning one.
•    Tomáš Ponizil: The mastermind behind the bike’s specific suspension kinematics, ensuring the frame tracks as well as it pedals.

Technical Prowess: The Paddle Legacy
The heart of the SHREMEEQ lies in its unique approach to carbon. Utilizing techniques honed in the production of elite racing paddles, the team uses a specific lamination process that minimizes structural weak points while maximizing energy transfer. The result is an uncompromising, professionally-tuned enduro machine designed for the world’s harshest tracks.
"SHREMEEQ isn't just about the frame; it’s about a total approach to carbon. We’ve eliminated the shortcuts often found in mass production to ensure every watt of energy is transferred to the trail." — Ondra Uher, Founder.
The Soul of SHREMEEQ: High-Pivot Reimagined
While the industry is flooded with high-pivot designs, SHREMEEQ takes a radical departure from the "function over form" clutter. Our goal was clear: achieve a perfect symbiosis between the aggressive kinematics of a high-pivot platform and a clean, integrated aesthetic that usually disappears under a mess of pulleys and bearings. We’ve managed to tuck the pivot placement into a design language that doesn't just perform - it flows.
 
The backbone of the frame utilizes a revolutionary approach to carbon construction. By integrating CompoTech proprietary filament-wound tubes and their ILT (Integrated Loop Technology) system, we didn't just build a frame; we engineered a skeletal structure. Unlike mass-produced Chinese open-mold frames, our tubes are the product of computer-optimized fiber orientation and precision robotic winding. This ensures a strength-to-weight ratio and structural consistency that manual layup simply cannot replicate.
We didn't stop at the tubes. We focused heavily on eradicating the "growing pains" of boutique carbon builds. By redesigning the bottom bracket and headtube junctions from the ground up, we eliminated common structural weaknesses and aesthetic clutter. The result is a chassis with surgical precision in the corners and a silhouette defined by beautiful, uninterrupted lines. This isn't just another carbon bike—it’s a high-performance instrument built to survive the brutal reality of the World Cup circuit.
Not Just Any Carbon Fiber
Unlike mass-produced frames, C/DURO utilizes an automated process with ultra-high-modulus UMS40 and M40J carbon fibers. Boasting a stiffness of ~400GPa and strength of ~4500MPa, these materials provide a laser-accurate ride feel.
•    High natural frequency: The high stiffness-to-weight ratio elevates the frame's natural frequency, avoiding resonance and together with vibration damping ensuring the tire stays glued to the trail.
•    Integrated Loop Technology (ILT): Replacing conventional bonding, ILT transfers loads through continuous carbon fiber loops. This ensures the joints match the strength and fatigue resistance of the tubes themselves.
 
Kinematics: The High-Pivot Advantage
The SHREMEEQ’s suspension is engineered for "silent speed." By utilizing a high-pivot Horst-link layout with an integrated idler pulley, C/DURO has achieved a rare balance of efficiency and "plow-ability."
•    Dual-Phase Axle Path: In the first half of travel, the axle moves rearward (up to 17mm extension) to erase square-edge hits. In the second half, it transitions to a vertical path to preserve agility during heavy G-outs.
•    Anti-Squat & Anti-Rise: With anti-squat values sitting well above 100% at the sag point, the bike accelerates instantly. Anti-rise is tuned between 80% and 67%, keeping the rear end active and the geometry stable under heavy braking.
•    Coil-Ready Progressivity: The leverage provides a supple start with a predictable "bottomless" ramp-up, making it fully compatible with both air and coil shocks.
to learn more visit: https://www.cdurobikes.com/blogs/blog/the-science-of-speed-shremeeq

Versatility Without Compromise: From Enduro to Full DH
The SHREMEEQ stands out as one of the few platforms on the market capable of a seamless transformation from a hard-charging Enduro rig into a dedicated Downhill machine. This modularity was baked into the DNA of the bike from the very first prototypes and has been rigorously proven through competition in several DH races, confirming its capability when the tracks get steeper and the hits get bigger.
The conversion is remarkably straightforward. By utilizing a series of flip-chips at the lower shock mount and adjustable linkage positions, riders can choose from three distinct chainstay lengths. In its longest race setting, the rear center reaches 465mm (measured at sag), providing unrivaled stability at high speeds. To further refine the ride, the frame features full compatibility with Reach Adjustment and Angle sets, allowing for surgical tuning of the geometry. Whether you are navigating tight, technical alpine switchbacks or pinning it down a World Cup DH track, the SHREMEEQ adapts to the terrain, not the other way around.
•    Travel Switch: The chassis can be adjusted between 170mm and 190mm of travel, transforming it from an enduro weapon to a bike-park-ready DH machine.
•    Wheel Configuration: A lower shock mount flip-chip allows for a full 29er setup or an agile Mullet (27.5” rear) configuration.
•    Custom Geometry: Riders can fine-tune their ride via a 56mm head tube (compatible with reach/angle headsets) and interchangeable rear bars for variable chainstay lengths. Fully custom geometry is also possible upon request. 
 
GEOMETRY
Size    460    475    500    530
HT angle    64°    64°    64°    64°
HT length    125 mm    125 mm    135 mm    150 mm
Reach    460 mm    475 mm    500 mm    530 mm
ST angle (effective)    78.5°    78.5°    78.5°    78.5°
ST length    380–450 mm    380–450 mm    380–450 mm    380–450 mm
BB Drop (29”/mullet)    37/25 mm    37/25 mm    37/25 mm    37/25 mm
BB Height    435 mm    435 mm    435 mm    435 mm
Wheelbase    1247 mm    1262 mm    1297 mm    1327 mm
Stack    630 mm    630 mm    640 mm    654 mm
Chainstay horizontal (29”/mullet)    440/435 mm    440/435 mm    450/445 mm    450/445 mm
Chainstay horizontal at sag (29”/mullet)    450/445 mm    450/445 mm    460/455 mm    460/455 mm
Rider height    160–176 cm    172–185 cm    182–195 cm    190–203 cm

 
TESTIMONIALS
Tomas Ponizil, Head Engineer - Performance engineering
"Years of industrial carbon manufacturing and deep-rooted bike design experience have converged in the Shremeeq. This isn’t just another bike; it’s a high-performance package engineered with HM (High-Modulus) carbon for weight-to-stiffness efficiency and a tuned high-pivot system for superior tracking. By integrating topologically optimized 3D-printed aluminum parts into the assembly, we’ve achieved a level of structural refinement that riders will feel in every corner and technical descent."

Milan Čižinský, Head Art Designer – Design approach 
“From the beginning, I wanted to clearly differentiate the design from other high-pivot bikes on the market — to give it its own identity, character and a sense of motion, not just another functional silhouette. 
The frame lines are clean and purposeful. Strong horizontal lines emphasise speed and stability, while the continuous top tube adds precision and structure. The goal was a dynamic design that looks fast even when standing still, without adding anything unnecessary. Every line and every surface has a reason to exist.”

Vojta Blaha – Team Rider view 
“I've tested the earlier versions of this frame for a year now and I'm very confident that this is a race ready machine. I’ve put in over 600 hours and tweaked numerous details of the frame to match my highest expectations. We tuned the kinematics using countless laps on the toughest tracks in the world but also telemetry to back up the feelings with data. I induced some structural changes on the frame to make it more reliable and also played around with many different geometry iterations to find the ideal space. I love that the bike is flickable in corners, yet stable when things get rough thanks to the high pivot system. The frame is light but also built to last so you can ride with no doubts. I've tried hard to push this thing to it's limit but it just keeps on going!”
 

 

The First Batch & Experience the SHREMEEQ in Person
The wait is nearly over. After years of development and brutal testing on the World Cup circuit, the first production batch of SHREMEEQ frames is currently in the works and will be available soon for those who refuse to settle for "off-the-shelf" carbon.
We believe that a bike this technically advanced needs to be ridden to be fully understood. That’s why we are hosting a series of exclusive testing events in Sušice, Czech Republic - the very place where our geometry and suspension were forged. Whether you are a local ripper or an international rider looking for a mountain bike pilgrimage, we invite you to experience the surgical precision of robotic winding and the "bottomless" feel of our high-pivot platform on some of the most beautiful trails in Europe.
For our international community, stay tuned for upcoming demo dates across Europe. If you’re ready to step away from the mainstream and into the future of automated carbon performance, now is the time.
Are you ready to redefine your limits?
Learn more and secure your spot for testing at: https://www.cdurobikes.com