Let customers speak for us
The shipment arrived without any problems, the wheels look great, the workmanship is first class, I haven't ridden them yet
Daniel Baranowski
HYPER 5
Easy to navigate, great info on all products available. Checkout was a little confusing, likely due to overseas transaction but service was prompt to verify correct payment and info. Communication during process was also good.
Bennett Hug
Winspace
Took a chance on new bike brand and cant say enough!!! Ordered during holiday sale event end of Dec and received the built bike from local US partner Service Course USA end of February. Several rides in and it looks and rides fantastic!!!
Bennett Hug
G3 Ultegra DI2
It looks absolutely stunning.
The feel is rather great and solid even if the handlebar itself is very light.
The whole routing is super easy.
Only slight downside is the very short stem bolt, it was too short so I had to replace it
Dmitry
HYPER Integrated handlebar
Ordered the bike, it arrived within the timeframe that was advertised. The service in my country was excellent. Clive is the best.
Aaron W
Winspace
This bike slays headwinds and makes them easy. It rockets up climbs and responds to your input immediately. It's so well designed, too. It's a gorgeous bike. Then the value. This bike is easily one of the greatest values in bicycling today.
Aaron W
C5 Aero Di2
Really amazing for the price. My PINARELLO Grevil came with another wheel set and these are hands down better and at a weight savings of one pound. This is my second set of Winspace wheels, and have always been happy with the quality and performance. I have beat these to death and even crashed and they remain true. The matte surface finish does show small scratches but I think it gives them character
Pharmpro
Lún GRAPID 700 Gravel Wheelset
Bike purchased during Black Friday. Delivered a bit later than planned (not Winspace’s fault). Communication with Winspace was excellent. Rode it for the first time today. Amazing bike.
Niko
T1550 Gen2 105 Di2
Fantastic bike, and I'll get better while you ride more getting used to it
José Padilla
SLC5.0 Ultegra Di2
Winspace G3 Gravel Complete Bikes: Performance Without Compromise
The paved road is just a suggestion. At Winspace, our G3 Gravel Series represents the pinnacle of all-terrain engineering, designed for riders who refuse to turn back when the tarmac ends. By combining our world-class carbon fiber chassis with premium electronic drivetrains, we provide a race-ready platform that balances speed, durability, and modern integration.
Building a high-performance gravel bike usually means navigating complex component compatibility. Our complete bike builds—featuring the G3 Pro, 105, and Ultegra Di2 configurations—eliminate the guesswork. Every bike is a race-proven platform manufactured with genuine Toray T800 and T1000 carbon fiber, ensuring you get UCI-certified performance without the inflated industry markups.
Explore the G3 Lineup
Choose the precision and speed of Shimano's electronic shifting paired with our versatile G3 chassis.
- G3 Pro Di2: The ideal entry into professional-grade gravel performance, offering the perfect balance of weight and responsive handling.
- G3 105 Di2: Bringing the reliability of 105 electronic shifting to the gravel world, this build is designed for consistent performance in the most demanding conditions.
- G3 Ultegra Di2: Our flagship configuration for the serious racer. Lightweight, ultra-fast shifting, and elite power transfer for those who demand the absolute best.
Why the G3 is the Foundation of Your Adventure
- Versatile Geometry: Engineered with a geometry that remains stable on loose, high-speed descents while staying nimble enough for punchy climbs.
- Massive Tire Clearance: The G3 supports tires up to 700c x 50mm or 650b x 2.1”, allowing you to configure your ride for anything from smooth hardpack to technical singletrack.
- Modern Standards: Featuring a T47 Threaded Bottom Bracket for creak-free performance and easy maintenance, alongside fully internal cable routing for a sleek, aero-efficient profile.
- The Bundle Advantage: Every G3 complete bike is paired with our high-performance Lún wheelsets and integrated handlebars, ensuring perfect mechanical compatibility and aesthetic harmony.
FAQ: Technical Specs & Buying Guide
Q1: How do I choose the correct size for a Winspace G3?
Gravel sizing differs from road racing platforms. The G3 is designed with a shorter Reach and higher Stack to improve off-road stability. We recommend comparing the geometry charts against your current bike; sizing down offers more agility, while sizing up provides a more stable ride for long-distance adventure.
Q2: Are these builds compatible with mechanical groupsets?
While these specific complete bikes feature electronic Di2 groupsets for peak performance, the G3 frameset itself is compatible with both Electronic and Mechanical drivetrains should you choose to customize in the future.
Q3: What is included in the box with a G3 complete bike?
Your bike arrives 95% assembled. The package includes the frame, fork, seatpost, headset, and thru-axles, along with the pre-installed Di2 groupset and Lún wheelset. You will only need to install the handlebars, front wheel, and your preferred pedals.
Q4: Does the G3 support bikepacking accessories?
Yes. The G3 frame features numerous mounting points for bags, racks, and extra water bottles, making it as capable for a weekend bikepacking trip as it is for a local gravel race.