Ultra GRX 1x12
Engineered as a high-performance gravel bike, blending aerodynamic speed with exceptional capability on the roughest terrain.
The 3T Ultra GRX 1x12 is a cutting-edge gravel bike from the Exploro Ultra line, designed for riders who demand uncompromising speed and versatility across diverse landscapes. Featuring a high-modulus carbon frame with innovative aero shaping, it's optimized for massive tire clearance (up to 61mm for 650b and 46mm for 700c) while maintaining remarkable on-road efficiency. Equipped with a robust Shimano GRX 1x12-speed mechanical groupset, it delivers precise shifting and a wide gear range for conquering steep climbs and maintaining speed on fast flats, making it an ideal choice for epic adventures, challenging races, and mixed-surface exploration.
- Unidirectional pre-preg carbon frame with high-modulus/high-strength layup for optimal performance.
- Optimized aerodynamics designed to be fast even with large volume gravel tires.
- Shimano GRX 1x12-speed mechanical groupset offers a wide gear range and reliable shifting.
- Exceptional tire clearance (up to 61mm for 650b or 46mm for 700c) for tackling diverse terrains.
- Equipped with powerful Shimano GRX hydraulic disc brakes for confident stopping in all conditions.
or with
View all locations
Product images may vary slightly from final specifications.
Need to Know
KEY FEATURES
PERFECT FOR
Why we like the 3T Ultra GRX 1x12
Exceptional Frame Quality
The high-modulus carbon frame offers an unbeatable combination of strength and lightweight, ensuring top performance on any terrain.
Advanced Drivetrain
The Shimano GRX components provide smooth, reliable shifting and a wide gear range, making it perfect for diverse riding conditions.
Superior Braking Power
The Shimano BR-RX820 hydraulic disc brakes offer powerful, consistent stopping power, enhancing safety and control on steep descents and technical trails.
Specifications
Frame Material
Unidirectional pre-preg carbon, high-modulus/high-strength performance blend layup
Shifter
Shimano GRX ST-RX820 12-speed
Rear Derailleur
Shimano GRX RD-RX822 SGS 12-speed
Front Derailleur
N/A
Crankset
Shimano FC-RX820-1 40T (size dependent)
Chain
Cassette
Shimano CS-M8100-12 10-51T
Brakeset
Shimano BR-RX820 hydraulic disc
Rotors
160mm
Bottom Bracket
Cockpit
Headset
3T MinMax IS42/28.6 + IS 47/38
Handlebar
3T Superergo PRO (size dependent)
Stem
3T Apto Stealth (size dependent)
Saddle
Selle Italia Model X Superflow
Seatpost
Wheels
Wheelset
Fulcrum Rapid Red 900, 700c, 22mm internal width, tubeless-ready (upgradable to 3T Discus options)
Front Axle
100x12
Rear Axle
142x12
Hubs
Tires
Vittoria Terreno Dry 700x35mm
Tire Clearance
Welcome to Bici's Personal Bike Shopping Service, where your cycling journey becomes truly personalized. At Bici, we understand that finding the perfect bike is more than just a purchase—it's an experience.
Our dedicated team of experts is here to guide you through every step, offering tailored advice and insights to match you with the ideal bike. Whether you're a road enthusiast, a mountain trailblazer, or a casual rider, we take the time to understand your unique needs and preferences.
Discover the difference of a truly personalized approach with Bici's Personal Bike Shopping Service, where your perfect ride awaits.
Free Shipping
Simple Returns
Price Guarantee
