The RIRA Ultra is a high-performance racing frameset meticulously engineered for elite cyclists seeking ultimate speed, efficiency, and control. Featuring a feather-light chassis crafted from over 300 layers of top-tier Toray carbon, the Ultra achieves an optimal balance of strength, aerodynamics, and responsiveness, making it ideal for both climbs and technical descents. Its innovative compatibility, advanced geometry, and real-world race-specific features such as broad tire clearance and exclusive electronic drivetrain integration set a new standard for competitive road cycling performance.
Key Points
- The RIRA Ultra is a flagship racing frameset designed for uncompromising speed, precision, and race readiness.
- Constructed from over 300 layers of high-grade Toray carbon, it weighs only 695 grams (Size M), offering an exemplary strength-to-weight ratio.
- Its aerodynamic RIRA Geometry optimizes every surface for reduced drag and maximum efficiency on various terrains.
- The frameset balances aggressive handling and high-speed stability, ensuring both nimbleness in corners and confidence in sprints.
- It features an EVO386 bottom bracket for wide crankset compatibility and efficient power transfer with reduced mass.
- The Ultra supports exclusively electronic drivetrains, with both SRAM UDH and Shimano Direct-Mount hangers for flexible setup.
- Generous tire clearance (32 mm rear, 34 mm front) enables riders to use wider, lower-pressure tires for enhanced grip and comfort on diverse road conditions.
- The design allows for a 1x setup to utilize SRAM’s Transmission system, offering a cleaner and more robust drivetrain suitable for aggressive racing.
- Every aspect, from functional aesthetics to component compatibility, is engineered to deliver pro-level performance in real-world racing scenarios.
Pickup available at Prost Krags veg 29
Usually ready in 5+ days
Chapter2 RIRA ULTRA
UD & GOLD / XS
Prost Krags veg 29
Prost Krags veg 29
2080 Eidsvoll
Norway
Candy Mountain Cyclery
Ullevålsveien 16A
0171 Oslo
Norway
Sportienda
Husebybakken 28B
0379 Oslo
Norway
Happy Bike
Haugåsstubben 10
4016 Stavanger
Norway
Ladeverket
Haakon VIIs gate 17
7041 Trondheim
Norway
rira ultra to be strong IN MAORI
The RIRA Ultra is our flagship, high-performance racing frameset —engineered for riders who demand the absolute best. Built on the proven RIRA Geometry and aero-optimized to slice through wind resistance, every curve and contour is tuned for maximum speed and efficiency.
Weighing just 695g (Size M 3%), the Ultra is meticulously crafted from over 300 layers of precision-placed Toray carbon in custom molds.
The result? A razor-sharp chassis that delivers blistering responsiveness and race-winning performance.
Built for the Breakaway
Feather-light and razor-sharp, the RIRA Ultra is engineered to unleash speed on every climb, descent, and final sprint. Purpose-built for competitive riders and committed enthusiasts alike, its frame is meticulously optimized - delivering race-ready stiffness without compromising ride quality.
Whether you’re attacking a summit or launching from the bunch, the aggressive-yet-balanced geometry delivers responsive handling that elevates every effort. With a striking silhouette, the RIRA Ultra doesn’t just perform - it commands attention.
Fully compatible with today’s top-tier electronic drivetrains, the EVO386 bottom bracket supports a wide range of cranksets, while a 27.2 mm seatpost gives room to customize your fit or go featherweight with the 219 g C2 TUMU Seatpost. UDH and Shimano Direct-Mount hangers come standard, and with tyre clearance up to 34 mm, this machine adapts to every road - and every ambition.
Lightweight, Without Limits
Every detail of the RIRA Ultra has one purpose: pure performance. From the very first pedal stroke, you’ll feel the featherweight agility and precision-tuned stiffness that climbers crave and sprinters demand.
Designed with racing DNA, its responsive handling and aggressive geometry turn every ride into a podium pursuit. Whether you’re out front or clawing back seconds, the RIRA Ultra is built to amplify every watt and sharpen every move.
The frame accommodates a wide fit range and drivetrain flexibility: the EVO386 platform pairs with multiple cranksets, the 27.2 mm seatpost offers a dialed-in fit or upgrade path to the C2 TUMU ultralight post, and dedicated hangers support SRAM UDH and Shimano Direct-Mount systems. With clearance for up to 34 mm tyres, it’s ready for cobbles, climbs, and criteriums alike.
Race-Ready. Road-Proven.
Precision, speed, and strength - without compromise. The RIRA Ultra redefines lightweight performance for competitive cyclists. Its meticulously engineered frame provides unyielding stiffness and responsiveness, built for the high demands of racing and peak performance riding.
The geometry is balanced yet aggressive, ensuring confident control at high speeds and during technical maneuvers. With its bold silhouette, this bike is as visually striking as it is mechanically efficient.
Fit and drivetrain versatility are built-in: the EVO386 bottom bracket supports a broad range of crank options, while the 27.2 mm seatpost offers tuning flexibility - or the ability to drop weight with the 219 g C2 TUMU. Exclusively designed for electronic groupsets, it features both SRAM UDH and Shimano Direct-Mount compatibility. Plus, with 32 mm rear and 34 mm front tyre clearance, the RIRA Ultra keeps its cool on rough roads and high-speed chases alike.
This is more than a bike - it’s a commitment to speed without sacrifice.
Chapter2 rira
With the RIRA, we got back to basics. It delivers razor-sharp balance and agility, guaranteed to raise your pulse. And if that wasn’t enough, its head-turning looks will make an impact whether you’re at your local bunch ride or pushing for a PB
GEOMETRY
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Road Bikes
Engineered for speed and efficiency, road bikes are designed to perform on smooth tarmac. With lightweight frames, aerodynamic profiles, and precise handling, they are the go-to choice for performance-driven cyclists and racing professionals. We understand the technical nuances of road bikes and ensure each one is stored, assembled, and delivered with meticulous care.
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All Road Bikes
Blending the best of road and gravel, all-road bikes are designed for cyclists who seek flexibility without compromise. Whether it’s a fast-paced group ride or a detour onto rougher paths, all-road bikes handle it all with confidence. We support brands offering these hybrid solutions with flexible fulfillment models and seamless last-mile delivery-ensuring every ride starts in perfect condition.
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Gravel Bikes
Versatile and adventure-ready, gravel bikes are built to tackle mixed terrain-from pavement to forest trails and everything in between. Wider tire clearance, stable geometry, and added mounting options make gravel bikes ideal for long-distance rides and bikepacking. Our logistics solutions cater to brands and retailers looking to meet the growing demand for this popular and fast-expanding category.
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Mountain Bikes
Built for durability and control, mountain bikes are engineered to conquer technical trails, steep descents, and rugged terrain. With features like suspension systems, reinforced frames, and wide tires, they offer confidence and performance in the most demanding environments. Whether it’s cross-country, trail, enduro, or downhill, we provide tailored logistics and assembly solutions that ensure every mountain bike is delivered ready to ride - no matter the terrain ahead.
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