
Ultra-Aero SL R
The world’s most aerodynamically advanced road race bike. Lightweight carbon design, unmatched performance & speed.
The Ribble Ultra Tri Disc has powered Ribble sponsored athletes to victories worldwide for the best part of a decade—blending advanced aerodynamics with performaned-tuned innovations. However, this model has now been discontinued as we make way for the next generation of drag-defying aero bikes.
Looking for Something Similar? Explore our latest Ultra-Aero SL R superbike—the most aerodynamically advanced aero bike ever. Built for speed and proven at the highest level, it’s the machine behind national titles, crit championships, and Commonwealth medals.
The performance-tuned, race-bred Ultra Tri Disc has been engineered to meet the demands of today’s triathlete. Meticulously handcrafted from Advanced-grade carbon, every tube shape has been aerodynamically optimised to minimise drag in real-world racing conditions. With built-in adjustability that enables you to achieve your ideal position and the addition of the industry standard disc brakes, the Ultra Tri Disc offers superior handling and braking control—making it the perfect choice for the most technically demanding of triathlon courses, where every second counts.
The difference between a quick bike split and your fastest time ever can be measured in seconds and is defined by your natural enemy - air. With the lowest drag coefficient of any bike that we have ever produced, each surface of the Ultra Tri Disc has been painstakingly sculpted to limit the effects drag plays in the never-ending battle of man and machine versus the elements.
TESTING, ANALYSIS & REFINEMENT The specific demands of the Triathlete have been evaluated with particular focus on the need to hydrate and fuel effectively without compromising aerodynamic performance. The Triathlon component package incorporates hydration, fuel and essential storage solutions for race day. This pack also offers a significant aerodynamic advantage vs the base model with standard frame mounted hydration and storage systems.
In performance testing, the Ultra Tri Disc outperformed the base Ultra TT, demonstrating a 30.1% drag saving when outfitted with the Triathlon accessory pack.
DRAG SAVE FINAL ANALYSIS The final CFD and real world testing showed a total bike and rider drag saving of up to 2.2% and an average of 1.3% across a -15 to +15 degree YAW sweep versus initial prototype and benchmark.
TIME SAVINGS Drag saving equates to up to 23 seconds based on our test rider racing a flat 25-mile (40.2 km) at 29 mph (46.6 kph).
The Ultra Tri Disc is expertly engineered for maximum aerodynamic efficiency, establishing itself as the benchmark in high-performance cycling. Building on the record-breaking success of the Ultra platform, this bike features crucial enhancements to the front fork and seat stays, ensuring it carves through the air with unmatched precision. Conquer mixed wind conditions with exceptional speed and stability—when you ride the Ultra Tri, you don't just compete; you dominate.
Removeable Bento storage boxes are a neat solution to the problem of storage without compromising aerodynamics. Providing convenient access to nutrition and tools whilst offering additional aero gains through a streamlined profile and strategic positioning on the bike.
The integrated hydration system, strategically placed in front of the handlebars, empowers the rider to hydrate effortlessly without taking their hands off the bars, all while maintaining an aerodynamic race position that could be the vital difference to setting a new PB or coming up short.
The addition of disc brakes offers superior braking power and control over traditional rim brakes as well as additional aerodynamic advantages. A newly redesigned front fork diverts airflow smoothly past the front brake calliper for the essential aesthetics that are the hallmark of a world-class superbike.
The multi-position design of the seat post allows for extensive fore and aft adjustment of the saddle to create a virtual seat tube angle of 76° to 79°. This enables the geometry of the bike to be fine-tuned to help you find your ideal position.
To help you select the correct size, please find your height below. The graphic below illustrates our recommendations, ensuring that the size you order will fit you perfectly.
5'1 - 5'4
155 - 163cm
5'4 - 5'7
163 - 170cm
5'7 - 5'10
170 - 178cm
5'10 - 6'1
178 - 185cm
6'1 - 6'4
185 - 193cm
The compact Garmin Edge 840 offers advanced technology to track training and optimize performance for every cyclist.
Garmin's Varia RTL515 Radar Tail Light enhances safety by alerting you to approaching vehicles via Edge® bike computers or smartphones.
Restrap's handcrafted tool pouch keeps your tools, tubes, and spares readily accessible for easy roadside repairs.
The Ultra Tri Disc is available to order on cycle to work schemes.
We accept all major cycle to work scheme vouchers
The Endurance SL R is our flagship carbon endurance bike, this high-performance frameset is superlight (frame sub 900g) and the truncated aerofoil profile of the tubes makes it the lightest and one of the fastest packages that we offer.
When being fast, just isn’t fast enough! Faster in the wind tunnel, faster on the road, the Ultra-Aero SL is designed to dominate, defeat the wind and make your fastest rides faster than ever before.
When being fast isn’t fast enough! Dominate the straight line, defeat the wind, and experience exhilaration like never before!