L Winspace SLC 3.0 (Shimano Ultegra R8100)

The Apex of Climbing.

The Winspace SLC 3 is a significant leap forward in carbon engineering. Utilizing ultra-high modulus T800 and T1000 carbon fiber, Winspace has managed to keep the frame weight around 780g, all while increasing bottom bracket stiffness compared to its predecessor. This isn't just a weight-weenie's dream; it is a modern racing platform that features fully internal cable routing and aerodynamic tube shaping, ensuring you aren't fighting the wind when the road flattens out.

Why the SLC 3 is a Giant-Killer:

• Elite Power Transfer: The asymmetric chainstays and reinforced bottom bracket area ensure that every watt of your effort is converted into forward motion. When you stand up to sprint, the SLC 3 responds instantly.

• Internal Routing Integration: Clean, hidden cables provide a sleek, pro-tier aesthetic and a measurable aerodynamic advantage. It is designed to work seamlessly with both electronic and mechanical groupsets.

• Refined Carbon Layup: By strategically placing T1000 carbon in high-stress areas and T800 for vibration damping, Winspace has achieved a ride quality that is "snappy" without being punishing on long endurance days.

• Modern Tire Clearance: Designed for the modern racer, the SLC 3 comfortably fits up to 32mm tires, allowing you to run lower pressures for increased grip and comfort without sacrificing speed.

• UCI Approved: This frame is ready for the highest levels of competition. Whether you’re racing a local hill climb or a multi-day stage race, the SLC 3 meets the rigorous standards of the pro peloton.

• Weight-First Engineering: With a frame weight that rivals the most expensive climbing bikes on the market, the SLC 3 allows you to build a sub-7kg dream bike without the "superbike" price tag.

Technical Specifications:

• Frame Material: T800 / T1000 Carbon Fiber

• Frame Weight: ~780g (Size M, unpainted)

• Brake Type: Flat Mount Disc

• Bottom Bracket: BB86 Press-fit

• Tire Clearance: Up to 32mm

• Routing: Fully Internal (or semi-internal)

• UCI Certified: Yes

The Build:

1. Frameset & Cockpit

• Frame: Winspace SLC 3.0 XTREME Large

• Fork: Carbon

• Handlebar: Reserve RD1 38cm x 120mm

• Seatpost: Winspace Carbon 15mm

• Saddle: ProLogo Dimension NDR 143mm

• Bar Tape: Supacaz Black

2. Drivetrain (The Groupset)

• Shifters/Brake Levers: Shimano Ultegra ST-R8100

• Rear Derailleur: Shimano Ultegra RD-R8100

• Crankset: Shimano Ultegra FC-R8100 172.5mm

• Chainrings: Shimano Ultegra 52/36T

• Bottom Bracket: Wheels MFG BB86

• Cassette: Shimano Ultegra CS-R8100 11-30T

• Chain: Shimano Ultegra

3. Braking System

• Calipers: Shimano Ultegra

• Rotors: Shimano Ultegra 160/140mm

4. Wheelset & Rubber

• Rims/Wheelset: Hollowgram R45

• Tires: Vittoria Rubino Pro 700 x 25mm

The Alegro Perspective: There are very few frames at this price point that can match its stiffness-to-weight ratio. While many aero bikes feel "sluggish" on steep ramps, the SLC 3 feels like it’s pulling you up the mountain. This build with a Shimano Ultegra Di2 12Speed groupset and these wheels at less than $8000 is a steal.

Gravity Defying. Aerodynamically Refined. Elevate your Ride with Winspace.