Primo 2 WPNT

Any road, any rider. 3T’s most versatile bike.

The iconic bike whose unbeatable aerodynamics and speed changed gravel riding forever, now in a modern evolution.

Road-inspired geometry and tire versatility

Choose Primo for road-inspired geometry and tire versatility 

Fast on any surface

The perfect all-round bike: fast on any surface, from tarmac to gravel

Elegant and efficient

3T Semi-Integrated technology is the perfect design solution for clean cable integration.

UDH Compatible

Engineered for optimal shifting performance.

WE PAINT!

While the advanced carbon technology we use lets us showcase the material itself as a design element, we know that color is one of the key ways a 3T bike expresses personality and style. That’s why we invest so much time in creating original graphics, selecting premium paints, and developing striking finishes.

Because we know how strongly color defines a bike’s identity and character, we decided to bring painting in-house, at our factory in Presezzo, Italy. Today, every 3T frame is painted in Italy.

With the launch of our in-house paint facility and the WPNT custom program, we can finally say we own the full creative process of making our bikes, from engineering to color design.

IT ALL STARTS WITH THE TIRES

To design a fast bike, you have to start with the wheels. Tire choice determines comfort and grip, but also affects aerodynamics and even frame design. And to design around aerodynamics, you need to know the real tire dimensions; the ones you actually measure. That’s what REALFAST aerodynamics means: reality, not theory.

Tire size and shape depend on rim width, tire pressure, and even the accuracy of the manufacturer’s stated dimensions.

So we ran hundreds of tests and measurements to map the actual tire dimensions, what we call WAM (Width As Measured) and RAM (Radius As Measured), and used those numbers to design the frame.

Check the maximum WAM and RAM for PRIMO² here.

REALFAST AERODYNAMICS

Aerodynamics matter even off-road.

You notice it most when you’re not grinding uphill, but riding on tarmac or smoother gravel. With headwinds or crosswinds, even if your ground speed is moderate, you’re still moving fast relative to the air; and that’s exactly why aerodynamics make a difference.

PRIMO² is also a great road bike in its own right. That’s because we designed, tested, and optimized it not only at 30 mph (48 km/h) the wind tunnel standard for road bikes, but also at a more realistic 20 mph (32 km/h), which better reflects off-road gravel, dirt, and singletrack speeds.

We developed the Squaero profile by testing the bike with knobby tires and even caked in mud.

SQAERO

PRIMO²’s aerodynamic performance starts with its down tube. At 50×75 mm with a truncated Sqaero profile, it provides not only optimal stiffness, but also the ideal shape to guide airflow around a wide front tire.

Designing a full airfoil starting from a 50 mm width (needed to continue the airflow from the front wheel) would require a profile height of 150–200 mm creating too much surface drag. With the truncated Sqaero profile, even the bottles remain shielded from airflow.

To optimize REALFAST aerodynamics across the entire platform, we applied the Sqaero profile not only to the down tube, but also to the head tube, fork, seatpost, and seat stays.

Primo² versus Racemax, Extrema and Ultra

Racemax and Extrema Italia all feature gravel-specific geometries. Racemax is designed as the ultimate choice for fast gravel or racing; when speeds get serious.

Extrema Italia excels in non-stop ultra adventures and the toughest off-road races, while Ultra combines exceptional ground clearance for extreme terrain with efficient aerodynamics.

Primo², by contrast, has a road-inspired geometry while still offering wide tire and wheel options. Ride fast on 700c wheels, then switch to 650b and bigger tires when adventure calls.

Your Primo² is ready for anything.

Geometries

Size	S	M	L	XL
Rider Height* (cm)	157-170	168-180	178-191	188-201
Rider Height* (inches)	5'2"-5'7"	5'6"-5'11"	5'10"-6'3"	6'2"-6'7"
01. Stack**	517	546	575	604
02. Reach	366	378	390	402
03. Headtube angle	69.5	71.1	72.5	72.5
04. Fork axle-crown	395	395	395	395
05. Headtube length	101	125	150	180
06. BB drop	70	70	70	70
07. Seattube angle	72.5	72.5	72.5	72.5
08. Seattube length	463	490	518	54
09. Toptube length	529	550	571	592
10. Front center	591	598	606	627
11. Rear center	415	415	415	415
12. Wheelbase	996	1003	1011	1032

* Rider heights are approximations. For more accuracy, compare stack/reach with your current bike. ** Actual stack height is 15 mm higher due to Apto cable cover.