EXTREMA ITALIA
CHOOSE YOUR BUILD
100% MADE IN ITALY PRODUCTION
The Extrema Italia represents the expansion of our efforts to bring production back to Italy. Using our proprietary filament winding and RTM (resin transfer molding) technology we have developed a highly capable for adventure yet fast for racing bike.
3T MORE INTEGRALE TECHNOLOGY
Running cables internally can be nice and potentially reduce aero drag, but what is the point if you end up with a very wide and bulky headtube with oversized bearings to house the cables? Also, usually integrated systems make maintenance and rider position adjustments a nightmare.
Our MORE Integrale system uses the exact same headtube shape for internal and external cables and gives you all the benefits without the drawbacks:
- You can make small height adjustments to the MORE Integrale without disconnecting or resizing the brake hoses.
- You can swap MORE Integrale stem lengths without needing to disconnect and bleed the brake hoses.
- You have the freedom to choose any of our 3T INTEGRALE bars to best fit the ergonomics & functionality you desire.
- Should your adventure take you far from home, the MORE stem can be removed completely for travel without the need to disconnect the brake hoses.
- The Extrema paired with the MORE stem is compatible with 1X & 2X Sram and Shimano electronic groupsets
- Dedicated K-Edge GPS mount included More information
For more information see MANUAL
IT ALL STARTS WITH THE TIRES
To make the fastest possible gravel bike, you need to start with the tires. Tire choice determines comfort & grip, but it also determines how you can shape the frame to redirect airflow.
To aerodynamically engineer the frame around the tires, you need to know what their REAL measurements are. Not what’s on the label, but how they really fit. That’s REALFAST aerodynamics. It’s not easy however, as the tire dimension depends on the rim you use, tire pressure, and of course how accurate the manufacturer’s claimed size is.
We took hundreds of measurements to know the real tire widths (which we call WAM - Width As Measured and RAM - Radius As Measured) and engineered the frame around that data.
Max clearance information can be found here.
SO WHAT TIRE DO YOU NEED?
Balancing aerodynamic efficiency with the demands of rugged gravel terrain requires meticulous engineering. The challenge lies in optimizing the bike’s aerodynamics without compromising its ability to tackle variable surfaces. The Extrema is optimized around massive 29”/700c tires with 50-57mm WAM (Width-As-Measured).
Our solution is a downtube design that cleans up the airflow mess as it passes over the front wheel and meets the frame. The downtube is 60mm wide right behind the front tire and gets even wider as it gets close to the BB. This redirects the airflow over the frame from the front wheel and shields the bottles for a complete aerodynamic system.
Additionally, the head-tube features an elongated aero profile with an aggressive truncation at the back. This creates a sharper front end that’s is much narrower between the two headset bearings. These features paired with your riding position make for an adventure bike that is seriously fast and ready for anything.
Aerodynamics and stability is further improved when Extrema is paired with 3T super-wide 45/40 LTD wheels.
REALFAST AERODYNAMICS
Balancing aerodynamic efficiency with the demands of rugged gravel terrain requires meticulous engineering. The challenge lies in optimizing the bike’s aerodynamics without compromising its ability to tackle variable surfaces. The Extrema is optimized around massive 29”/700c tires with 50-57mm WAM (Width-As-Measured).
Our solution is a downtube design that cleans up the airflow mess as it passes over the front wheel and meets the frame. The downtube is 60mm wide right behind the front tire and gets even wider as it gets close to the BB. This redirects the airflow over the frame from the front wheel and shields the bottles for a complete aerodynamic system.
Additionally, the head-tube features an elongated aero profile with an aggressive truncation at the back. This creates a sharper front end that’s is much narrower between the two headset bearings. These features paired with your riding position make for an adventure bike that is seriously fast and ready for anything.
Aerodynamics and stability is further improved when Extrema is paired with 3T super-wide 45/40 LTD wheels.
EXTREMA VS RACEMAX ITALIA
While the Racemax Italia focuses on fast courses and tarmac/gravel mixed riding, the Extrema Italia is designed exactly as it sounds: for the toughest race courses and fast adventures.
The RaceMax frameset is fastest with 29”/700c 35-46mm WAM tires. That’s when its top speed rivals the best road bikes out there. So whether you’re on asphalt, easy or tougher gravel, you can be sure you have the fastest setup.
The Extrema offers even more traction and control as it is optimized for 29”/700c 50-57mm WAM tires. It is designed for the toughest terrain at high speed for long rides. The Extrema features our 3Touring geometry with a higher stack and shorter reach when compared to Racemax to make the Extrema the ideal choice for adventure racing and bikepacking adventures. The wireless dropper and suspension seatpost compatibility along with fork accessory mounts add to the versatility of this unstoppable race adventure bike.
Extrema Italia delivers the same Bottom Bracket and Headtube stiffness values we engineered for RaceMax Italia and that we recommend as optimal for a fast gravel platform. Thanks to an updated layup and thinner seattube, the Extrema offers increased vertical compliance compared to the Racemax Italia.
design in details
60MM DOWNTUBE NECK
Upper downtube necks down to 60mm to pick up the airflow coming off the front tire.
75MM DOWNTUBE BASE
Lower downtube aero profile is 75mm wide to fully shield water bottle.
SIZE-SPECIFIC DOWNTUBE
Reduced depth on smaller sizes to keep frame compliant and keep space for bottles.
PERFECT AERO CUTOUT
Close-fitting cutout to shield the rear wheel and achieve the most speed.
MIND THE GAP
No oversized gaps between front tire & downtube for better airflow transition and less turbulence.
MONSTER 700c CLEARANCE
Clearance for up to 57mm WAM (29”/700c)!
MINIMALIST CROWN
Fork crown shapes haven’t changed much since brakes were attached there. Now that we have disc brakes, we don’t need that bulk of material and can reshape the crown for better strength, stiffness and weight. Plus better aerodynamics.
FORK ACCESSORY MOUNT
Equipe your Extrema for adventure using the three accessory mount rivets on either side of the fork for an anything cage.
DOUBLE-DROP CHAINSTAYS
Dropping the drive-side chainstay improves tire & crank clearance. Dropping the other side as well creates a much more efficient structure behind the BB for higher stiffness & strength as well as lower weight.
THREADED BB
Most of our complete bikes come with threaded BBs for the best alignment and to avoid any issues. Yet we avoid gluing threaded alloy rings into the carbon (added weight, complexity and debonding risk). Read more here.
DIRECT-MOUNT REAR BRAKE
Standard frames require an adaptor to use a 160mm brake rotor. We have integrated that into the frame, meaning you don’t need any extra pieces to attach the brake.
DIRECT-MOUNT FRONT BRAKE
Standard forks require a flip-flop adaptor to set the correct brake rotor size. Our direct-mount pre-sets the caliper for 160mm rotors without any extra pieces.
INTEGRATED FENDER MOUNTS
Invisible until you need them.
AERO SEATTUBE+ROUND SEATPOST
The seat tube is kept aero yet it fits a round 27.2mm seatpost so you have many round, wireless dropper or suspension post options.
UDH COMPATIBLE
Designed solely for electronic groupsets. Thanks to its UDH rear derailleur hanger, it is compatible with all regular rear derailleurs as well as the new SRAM Eagle Transmission rear derailleurs that feature a hangerless direct-mount design.
DEDICATED K-EDGE GPS MOUNT INCLUDED
Designed specifically for the 3T MORE INTEGRALE.
More information
3TOURING GEOMETRY
Our new 3Touring geometry consists of 2 parts: rider fit and handling.
The rider fit is optimized for tougher terrain. This means that while the rider position is still road-inspired for the fastest rider position, the stack is a little higher to offer better control over your bike. The changes are subtle.
The handling geometry is quite extreme, to ensure that the bike inspires confidence on rough terrain but still feels light and nimble on fast sections despite the massive tires. A slightly slacker headtube angle and extreme fork offset (61-73mm depending on frame size!!!) gives you a very familiar handling even on very unfamiliar terrain..
frame specifications
For frame specifications, component compatibility, clearances, etc, please check ourExtrema Italia Frame specifications. Geometry information is found below
GEOMETRIES
| Size | 51 | 54 | 56 | 58 |
|---|---|---|---|---|
| Rider Height (cm)* | 157-171 | 168-180 | 176-186 | 183-195 |
| Rider Height* (inches) | 5'2"-5'7" | 5'6"-5'11" | 5'9"-6'1" | 6'0" 6'5" |
| Stack | 547 | 570 | 590 | 610 |
| Reach | 358 | 368 | 376 | 384 |
| Headtube angle | 69.1 | 70.5 | 71.5 | 72.0 |
| Fork axle-crown | 387 | 387 | 387 | 387 |
| Front center | 620 | 612 | 617 | 626 |
| Rear center | 437 | 437 | 437 | 437 |
| BB drop | 79 | 76 | 76 | 74 |
| Wheelbase | 1044 | 1036 | 1040 | 1050 |
| Toptube length | 529 | 547 | 561 | 575 |
| Seattube length | 466 | 491 | 521 | 549 |
| Seattube angle | 73.5 | 73.5 | 73.5 | 73.5 |
| Max. Seatpost insertion** | 179 | 206 | 236 | 265 |
| Lowest Seatpost Height with RockShox Reverb AXS XPLR (350mm)*** | 637 | 635 | 635 | 650 |
** This number is applicable to riders using the Rock- Shox Reverb AXS XPLR 27.2mm (350mm) dropper seatpost which cannot be cut for fitting.
*** WITH ROCKSHOX REVERB AXS XPLR (350mm) Lowest seatpost height when using RockShox Reverb AXS XPLR 27.2mm (350mm) seatpost measured from the center of the bottom bracket to the center of the saddle rails. Please consider the maximum seatpost insertion when you intend to use the Extrema with the Reverb AXS XPLR dropper as the insertion or the seatpost cannot exceed the number given on the geometry table under max. seatpost insertion on the table above.
