3T RaceMax Integrale GRX Di2 Bike
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3T RaceMax Integrale GRX Di2 Bike
3T RaceMax Integrale GRX Di2 Bike Info
The 3T RaceMax Integrale GRX Di2 Bike is built on a single premise: gravel doesn't have to be slow. Where most gravel bikes accept aerodynamic compromise as the cost of off-road capability, 3T's RaceMax platform was designed from the start to minimize that tradeoff. The result is a carbon gravel bike that handles dirt roads and mixed terrain without abandoning the aero engineering that makes meaningful differences on long, fast rides.
REALFAST Frame Design
The frame is shaped around 3T's REALFAST methodology, which uses actual tire measurements — Width As Measured (WAM) and Radius As Measured (RAM) — to define the aerodynamic envelope around the tire rather than leaving an arbitrary gap. For 700c tires, the RaceMax Integrale accommodates a WAM of 35–46mm; swap to 650b wheels and that opens to 61mm WAM, wide enough for a completely different character on more demanding surfaces. The lower downtube runs 75mm wide specifically to wrap around a mounted water bottle, reducing airflow disruption from the bottle itself. The upper downtube narrows to 50mm where it meets the head tube, managing air from the front wheel before it reaches the down tube. The fork uses a compact crown — road-length rather than the taller crowns common on gravel bikes — which keeps handling precise and reduces weight. Double-drop chainstays create tire clearance while maintaining lateral stiffness, and the threaded bottom bracket shell provides more reliable interface alignment than a press-fit under real-world conditions. Chainstay length is 418mm across all six sizes, keeping the rear end consistent regardless of frame size.
Integrale Cockpit System
The "Integrale" designation refers to the fully integrated cockpit, where cables and hoses route internally through the stem and handlebar rather than running externally. This isn't just aesthetic — internal routing eliminates the aerodynamic drag of exposed cables at the front of the bike, which is one of the more significant sources of resistance on a gravel setup. The system uses the 3T MinMax Integrale headset with an oversized 1.5-inch steerer, which allows clean internal routing through the head tube without the stiffness compromise that smaller steerers can bring. The stem is the 3T Apto Integrale Stealth — sized to fit each frame — and the handlebar is the 3T Superergo Integrale LTD, a compact drop bar with an ergonomic shape designed for mixed-terrain riding and long days in varied positions. Widths run from 38cm for the 48cm frame up to 44cm for the two largest sizes.
Shimano GRX Di2 12-Speed Drivetrain
Shifting is handled by Shimano GRX RX825 Di2 — the top tier of Shimano's gravel-specific electronic groupset. The front and rear derailleurs are both RX825, and the levers carry the same designation, giving the full Di2 experience: precise, instant shifts under load with a system that doesn't require mechanical cable adjustment over time. The crankset is a Shimano GRX RX610 with 46/30 chainrings — a 2x setup that covers steep climbing in the small ring and cruising speed in the large. Behind it runs a Shimano HG710 12-speed cassette in 11-36, which gives a reasonable low gear with the 30-tooth small ring without going to an excessively wide-range cassette that compromises shifting feel. Braking is Shimano GRX RX400 hydraulic disc with 160mm rotors front and rear.
Wheels, Tires, and Practical Details
Wheels are Fulcrum Rapid Red 900 or Fulcrum Racing 600 depending on availability at time of fulfillment — both are capable aluminum disc wheels suited to the demanding surfaces this bike is intended for. Tires are Pirelli Cinturato Gravel H in 700x40, a file-tread gravel tire that rides quietly on pavement and handles hardpack and light gravel without the weight penalty of a more aggressive tread. The frame includes hidden fender mounts for all-weather versatility — the kind of detail that makes a fast gravel bike a more useful everyday machine. The saddle is the Selle Italia Novus Boost Evo Superflow, and the bottle cage is 3T's own nylon front-load cage. Six sizes run from 48cm to 61cm, with geometry that 3T describes as road-feeling on asphalt without giving up trail capability on gravel.
3T RaceMax Integrale GRX Di2 Bike - Specifications
*Specifications are subject to change.
3T RaceMax Integrale GRX Di2 Bike Geometry
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The R&A Transporter Bike Box
Shipping bikes can be tricky. They are big and bulky but delicate. Shipping your passion / investment is nothing we take lightly. We go through great detail to ensure your new ride will get to you in perfect condition.
So you've purchased the bike of your dreams! We've put together this video to outline the R&A concept of shipping bikes and the steps we take to get you your new bike in perfect condition. It will show you the careful steps we take to assemble your bike to make it as easy as possible for you to get your bike on the road when you receive it. Ready to ride. It will also show you the tips and tricks of removing all of your parts in the most careful way to ensure your riding as quickly as possible.
