Winspace M6 Aero Carbon Frameset - Uncle Rinne Collaboration, XS (430)
Four carbon grades, 8.9 watts saved, 2-tonne load rating. The M6 is proper aero engineering at a price that doesn't require a sponsor.
The Winspace M6 is a full aero road frameset built around a quad-fibre carbon layup - Toray T800, T700, M40, and ultra-high-modulus M60 - each grade placed exactly where it earns its weight. M60 military-grade carbon, used in aerospace and defence applications, is concentrated at the bottom bracket shell and chainstay junction where power transfer demands maximum rigidity. T800 runs through the main triangle for the optimal strength-to-weight ratio. T700 is layered into the seat tube and seatstays to introduce measured vertical compliance - enough to take the edge off a long day without robbing you of efficiency. The frame is load-tested to 2 tonnes of static force and the full aero tube profile saves 8.9 watts at race speeds compared to a conventional round-tube design. At $2,999, this is real aero engineering without the badge premium.
Four design details set the M6 apart technically. The sharpened head tube profile cuts airflow cleanly at the most aerodynamically critical point on the front end. The angled T-tail chainstay section channels air efficiently around the rear wheel rather than creating turbulence behind it. A wide fork crown and blade profile generates positive aero interaction with the front wheel across real-world yaw angles. The embedded moulding process integrates cable entry ports and internal routing channels during the carbon layup itself - not bolted on after manufacture - giving a structurally superior and cleaner result. Fully integrated routing handles Shimano Di2, SRAM AXS, and mechanical groupsets without modification. The T47 threaded bottom bracket eliminates press-fit creak while retaining a wide shell for maximum power transfer stiffness. Clearance for 32mm tyres means you can run a 28mm race setup or a 32mm training tyre on the same frame.
Frameset includes frame, fork, headset, and seatpost. The T47 threaded BB shell requires adaptor cups - see compatibility guide below for Shimano, SRAM DUB, and Campagnolo options. Di2, AXS, and mechanical routing are all supported through the fully integrated internal system.
What makes this worth it
Quad-Fibre Carbon Layup
T800, T700, M40, and ultra-high-modulus M60 fibres are placed exactly where each grade earns its weight - M60 at high-load power transfer zones, T700 in compliance zones. Most brands use two grades. Winspace uses four.
8.9 Watts Aerodynamic Advantage
Every tube section is aerodynamically profiled - including the fork, seatstays, and chainstays - working together rather than just the down tube in isolation. The M6 saves 8.9 watts at race speeds over a conventional round-tube design.
Embedded Moulding & Integrated Routing
Cable entry ports and internal routing channels are integrated during carbon layup - not bolted on post-manufacture. All cables and hydraulic hoses enter at the stem and disappear completely. Compatible with Di2, AXS, and mechanical without modification.
T47 Threaded Bottom Bracket
T47 delivers maximum power transfer stiffness at a wide shell diameter - without press-fit creak or the service headaches that come with it. Threaded installation means any shop can service it. Compatible with Shimano, SRAM DUB, and Campagnolo via T47 adaptor cups.
Angled T-Tail Chainstay
The chainstay profiles are angled to channel airflow around the rear wheel rather than creating turbulence. Combined with the sharpened head tube and wide fork, this is whole-frame aerodynamics - not just a fast-looking down tube with round tubes everywhere else.
32mm Tyre Clearance
Run a 28mm for race-day performance or 32mm for training and wet-weather confidence. Real-world tyre widths - not the narrow spec-sheet numbers that look good next to a competitor's 28mm limit.
Bottom bracket compatibility guide
The T47 threaded shell (68×47mm) requires adaptor cup sets - these are not included with the frameset and need to be ordered to match your groupset.
Shimano (24mm spindle): T47 outboard cups with 24mm inner diameter. Compatible options: Wheels Manufacturing T47 Outboard Road, Praxis T47, Token T47.
SRAM DUB (30mm spindle): T47 DUB cups with 30mm inner diameter. Compatible options: Wheels Manufacturing T47 DUB, SRAM T47 DUB, Praxis T47 DUB.
Campagnolo (25mm spindle): T47 outboard cups with 25mm inner diameter. Compatible options: Wheels Manufacturing T47 Campagnolo, Token T47 Campagnolo.
Geometry
All dimensions in mm unless stated. Measured with 700C×32mm tyre.
| Measurement | XS | Small | Medium | Large | XL | XXL |
|---|---|---|---|---|---|---|
| Seat Tube | 430 | 460 | 480 | 510 | 530 | 560 |
| Stack | 507 | 521 | 535 | 550 | 564 | 593 |
| Reach | 365 | 374 | 383 | 391 | 400 | 407 |
| Top Tube | 502 | 514 | 536 | 554 | 571 | 587 |
| Head Tube | 107 | 120 | 130 | 145 | 160 | 187 |
| Wheelbase | 972 | 981 | 980 | 992 | 1006 | 1013 |
| Chainstay | 410 | 410 | 410 | 410 | 410 | 410 |
| BB Drop | 72 | 72 | 72 | 72 | 72 | 72 |
| Seat Tube Angle | 74.9° | 74.9° | 74.0° | 73.5° | 73.1° | 73.1° |
| Head Tube Angle | 70.8° | 71.3° | 72.2° | 72.3° | 72.3° | 73.2° |
| Standover Height | 729 | 752 | 769 | 791 | 808 | 837 |
| Stack / Reach Ratio | 1.39 | 1.39 | 1.40 | 1.41 | 1.41 | 1.46 |
| Rider Height (est.) | 155–163cm | 163–170cm | 170–178cm | 178–185cm | 185–193cm | 193–200cm |
Rider height ranges are for reference only. Use stack and reach to size accurately. If between sizes, consult a qualified bike fitter.
Specifications
| Brand | Winspace |
| Model | M6 Aero Carbon Frameset |
| Frame Material | Toray T800 / T700 / M40 / M60 quad-fibre carbon |
| Frame Weight | ~900g (size M) |
| Structural Rating | 2-tonne static load tested |
| Aero Performance | 8.9 watts saved vs conventional round-tube design |
| Fork | Full carbon aero fork, 369mm axle-to-crown (all sizes) |
| Bottom Bracket | T47 threaded (68×47mm) - BB cups not included |
| Tyre Clearance | Up to 32mm (700C) |
| Cable Routing | Fully integrated internal routing (Di2 / AXS / mechanical) |
| Brake Standard | Flat mount disc |
| Chainstay Length | 410mm (all sizes) |
| BB Height | 271mm (all sizes) |
| Available Sizes | XS (430) / Small (460) / Medium (480) / Large (510) / XL (530) / XXL (560) |
| Includes | Frame + fork + headset + seatpost |
| Colours Available | Frost White / Chameleon White / Mystic Purple / Carbon Black / Crimson Flame / Frost Black / Nusantara / Roubaix / Uncle Rinne Collaboration |
(WFM6ARUR)
Quad-Fibre Carbon Layup
T800, T700, M40, and ultra-high-modulus M60 fibres are placed exactly where each grade earns its weight - M60 at high-load power transfer zones, T700 in compliance zones. Most brands use two grades. Winspace uses four.
8.9 Watts Aerodynamic Advantage
Every tube section is aerodynamically profiled - including the fork, seatstays, and chainstays - working together rather than just the down tube in isolation. The M6 saves 8.9 watts at race speeds over a conventional round-tube design.
Embedded Moulding & Integrated Routing
Cable entry ports and internal routing channels are integrated during carbon layup - not bolted on post-manufacture. All cables and hoses disappear into the frame at the stem. Compatible with Di2, AXS, and mechanical without modification.
T47 Threaded Bottom Bracket
T47 delivers maximum power transfer stiffness at a wide shell diameter - without press-fit creak or the service headaches that come with it. Threaded installation means any shop can service it. Compatible with Shimano, SRAM DUB, and Campagnolo via T47 adaptor cups.
Angled T-Tail Chainstay
The chainstay profiles are angled to channel airflow around the rear wheel rather than creating turbulence. Combined with the sharpened head tube and wide fork, this is whole-frame aerodynamics - not just a fast-looking down tube with round tubes everywhere else.
32mm Tyre Clearance
Run a 28mm for race-day performance or 32mm for training and wet-weather confidence. Real-world tyre widths - not the narrow spec-sheet numbers that look good next to a competitor's 28mm limit.
| Brand | Winspace |
| Model | M6 Aero Carbon Frameset |
| Frame Material | Toray T800 / T700 / M40 / M60 quad-fibre carbon |
| Frame Weight | ~900g (size M) |
| Structural Rating | 2-tonne static load tested |
| Aero Performance | 8.9 watts saved vs conventional round-tube design |
| Fork | Full carbon aero fork, 369mm axle-to-crown (all sizes) |
| Bottom Bracket | T47 threaded (68x47mm) - BB cups not included |
| Tyre Clearance | Up to 32mm (700C) |
| Cable Routing | Fully integrated internal routing (Di2 / AXS / mechanical) |
| Brake Standard | Flat mount disc |
| Chainstay Length | 410mm (all sizes) |
| BB Height | 271mm (all sizes) |
| Available Sizes | XS (430) / Small (460) / Medium (480) / Large (510) / XL (530) / XXL (560) |
| Includes | Frame + fork + headset + seatpost |
| Colours Available | Frost White / Chameleon White / Mystic Purple / Carbon Black / Crimson Flame / Frost Black / Nusantara / Roubaix / Uncle Rinne Collaboration |
| SKU | WFM6ARUR |
| Brand | Winspace |