The iconic bike that, with its unbeatable aerodynamics and speed, changed gravel riding forever. In a modern version.
Geometry inspired by road and versatility
Choose the Primo2 for its versatility and wide tire compatibility.
Fast on every surface
The perfect all-round bike: fast on every surface, from asphalt to gravel.
Elegant and efficient
The perfect solution for internal cable routing thanks to 3T Semi-integrated technology
UDH Compatible
Designed to be robust and precise in shifting.
WE PAINT!
While the construction technology we use allows us to use the carbon of our frames as a design element, we know that color is one of the key elements that give personality and style to a 3T bike. For this reason, we invest a lot of time in creating original graphics and selecting attractive paints and finishes.
It is precisely because we know how much color contributes to defining the identity and character of our products that we started painting our frames in-house, at our Italian factory in Presezzo. Today, all 3T bicycle frames are painted in Italy.
With the introduction of the painting department and the WPNT artisanal painting program, we can finally proudly say that we control the creation process of our bicycles from beginning to end, from design to color design.
IT ALL STARTS WITH THE TIRES
To design a fast bike, you need to start with the wheels. The choice of tires determines the comfort and grip of the wheel but also influences the aerodynamics and frame design. To design the frame with aerodynamics in mind, however, it is necessary to know the REAL measurements of the tires. Not those reported on the label, but the actual ones. REALFAST aerodynamics means this: reality, not theory.
Testing and developing a bike based on reality is not easy because the dimensions and shape of the tires depend on the rim used, the pressure, and also the accuracy of the measurements declared by the manufacturer.
We therefore carried out hundreds of tests and measurements to know the real dimensions of the tires (which we define WAM - Width As Measured and RAM - Radius As Measured), and we finally used them to design the frame.
The Primo2 is designed to accommodate road, cyclocross, and gravel tires up to 45mm WAM. On even more demanding terrains, 650b rims and even wider tires can be used
up to 51mm WAM to maximize the bike's capabilities, grip, and comfort.
You can check here the maximum WAM and RAM usable for the Primo2.
REALFAST AERODYNAMICS
Aerodynamics makes a difference, even off-road.
You can easily realize this when, instead of climbing at moderate speeds, you ride on asphalt or on smoother sections. If the wind is headwind or crosswind, you are slow relative to your progress but you continue to be fast relative to the air moving around you, and this is precisely why aerodynamics is important.
The PRIMO² is also an excellent road bike in all respects. The reason is that we conceived, developed, and optimized it not only by testing it at 30 mph (48 km/h), the standard speed for road bikes, but also at a more realistic pace of 20 mph (32 km/h), which is closer to the rhythms that can be maintained when riding off-road on gravel, dirt roads, and single tracks.
We designed and refined the Sqaero shape by testing the bike with knobby tires and even muddy ones.
SQAERO
The aerodynamic performance of the PRIMO² mainly has to do with the dimensions and shape of its down tube. The 50x75mm dimensions with the truncated rear section of the Sqaero profile are the ideal solution not only to provide optimal rigidity to the structure, but above all to guide the airflow coming from a wide front wheel.
Developing a complete airfoil profile for the down tube starting from a width of 50mm, necessary to ensure continuity of the flow coming from the front wheel, would require a profile height of at least 150-200mm, a factor that would unfavorably increase surface resistance. In this way, thanks to the truncated Sqaero shape, even the water bottles remain protected from the airflow.
To optimize REALFAST aerodynamics across the entire platform, we also applied the Sqaero shape to the head tube, fork, seat tube, and seatstays.
Primo² vs RACEMAX, EXTREMA and ULTRA
RaceMax, Ultra and Extrema all have gravel-specific geometry. Our RaceMax was developed to be the best on fast gravel, where speeds are higher. The Extrema excels in fast adventures and tougher gravel races, while Ultra combines tire clearance with optimized aerodynamics to tackle the most challenging terrain.
The Primo frame features road-inspired geometry while allowing for excellent wheel and tire versatility. Ride your fastest days on 700c tires, then switch to 650b when adventure calls. Primo, your perfect all-rounder bike.
Specifications
PRIMO2 WPNT ~ RIVAL XPLR AXS 1X13 DISCUS 40|30
- FRAME
- Primo2 UDH - painted in Italy
- Frame Material
- Unidirectional pre-preg carbon, high modulus/high strength performance blend layup
- FORK
- 3T Fango Primo2
- HEADSET
- Sealed cartridge 52/40 (45deg)
- THRU-AXLE
- 100x12 front - 142x12 rear
- HANDLEBAR
- 3T Superghiaia Integrale LTD (S&M: 40cm - L&XL: 42cm)
- Handlebar Tape
- 3T Prendo Tough
- STEM
- 3T Apto with semi-Integrale spacer kit (S:80mm – M:90mm – L: 100mm – XL:110mm)
- Bottle Cage
- 3T Front nylon bottle cage
- REAR DERAILLEUR
- Sram Rival XPLR AXS E1 MAX 46T
- GROUPSET
- GROUPSET: Sram Rival E1 XPLR AXS 1×13
- BRAKES
- Sram Rival E1 Hydraulic Disc w/ Sram 160mm rotor
- CRANK
- Sram Rival E1 XPLR Wide 40T (S: 170mm – M&L: 172,5mm – XL: 175mm)
- CASSETTE
- Sram Rival XG 1351 E1 XPLR 10-46T
- WHEELSET
- 3T Discus 40|30 or Zipp303S depending on availability
- TIRES
- Pirelli Cinturato Adventure 700×45 or Vittoria Terreno T30 Sport 700x40 depending on availability
- Seatpost
- 3T Primo seatpost for Ritchey clamp
- SADDLE
- Fizik VENTO Argo X5 140 mm
