RACEMAX ITALIA: FASTEST GRAVEL, MADE IN ITALY
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
RACEMAX ITALIA: FASTEST GRAVEL, MADE IN ITALY
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
RACEMAX BOOST ITALIA: THE FASTEST ITALIAN MADE GRAVEL BIKE, ONLY FASTER
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
You can ride the Racemax Boost just like your standard Racemax Italian fast gravel bike, only farther and faster.
RACEMAX BOOST ITALIA: THE FASTEST ITALIAN MADE GRAVEL BIKE, ONLY FASTER
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
You can ride the Racemax Boost just like your standard Racemax Italian fast gravel bike, only farther and faster.
For the worst gravel and/or the most comfort, aero yet dropper/suspension seatpost compatible. Up to 700x57c tires! Italia version only
For the worst gravel and/or the most comfort, aero yet dropper/suspension seatpost compatible. Up to 700x57c tires! Italia version only
PRIMO: THE ORIGINAL AERO GRAVEL
The world’s first Full-aero gravel bike.
RACEMAX: FASTEST GRAVEL
Road bike speed on and off-road featuring next-level aerodynamics with rear wheel cutout, narrow headtube, bottle shielding downtube & aero profiles all around.
RACEMAX: FASTEST GRAVEL
Road bike speed on and off-road featuring next-level aerodynamics with rear wheel cutout, narrow headtube, bottle shielding downtube & aero profiles all around.
RACEMAX ITALIA: FASTEST GRAVEL, MADE IN ITALY
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
RACEMAX ITALIA: FASTEST GRAVEL, MADE IN ITALY
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
TOUGHEST GRAVEL
Get to the worst roads fast with the aero frame & road-inspired riding position
For the worst gravel and/or the most comfort, aero yet dropper/suspension seatpost compatible. Up to 700x57c tires! Italia version only
For the worst gravel and/or the most comfort, aero yet dropper/suspension seatpost compatible. Up to 700x57c tires! Italia version only
STRADA: WORLD’S MOST COMFORTABLE AERO BIKE 2.0
Aero&comfortable frame featuring clean, internal cable routing. Optimized for real world aerodynamics while maintaining comfort, because without comfort you won't be able to keep the aero position.
STRADA: WORLD’S MOST COMFORTABLE AERO BIKE 2.0
Aero&comfortable frame featuring clean, internal cable routing. Optimized for real world aerodynamics while maintaining comfort, because without comfort you won't be able to keep the aero position.
RACEMAX BOOST: THE FASTEST GRAVEL BIKE, ONLY FASTER
You can ride the Racemax Boost just like your standard Racemax fast gravel bike, only farther and faster. Or use it as a road bike with hidden speed, ideal if you ride in a group with varying abilities. You can even use it to arrive at work without a sweat.
RACEMAX BOOST: THE FASTEST GRAVEL BIKE, ONLY FASTER
You can ride the Racemax Boost just like your standard Racemax fast gravel bike, only farther and faster. Or use it as a road bike with hidden speed, ideal if you ride in a group with varying abilities. You can even use it to arrive at work without a sweat.
RACEMAX BOOST ITALIA: THE FASTEST ITALIAN MADE GRAVEL BIKE, ONLY FASTER
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
You can ride the Racemax Boost just like your standard Racemax Italian fast gravel bike, only farther and faster.
RACEMAX BOOST ITALIA: THE FASTEST ITALIAN MADE GRAVEL BIKE, ONLY FASTER
Developed and made in our Italian Factory, using proprietary Filament Winding + RTM technology delivering a super responsive feel and stunning look.
Designed for the most demanding riders and racers to be the fastest on any combination of asphalt, gravel and dirt, featuring clean, internal cable routing.
You can ride the Racemax Boost just like your standard Racemax Italian fast gravel bike, only farther and faster.
ULTRA BOOST - ULTRA BOOST URBAN: THE BOOST, EXTENDED
You can ride the Ultra Boost just like your standard Ultra tough-gravel bike, only expanding your horizons.
Ultra Boost Urban have the same capabilities of Ultra Boost, just with a more upright position, ideal for commuting or granting additional control.
ULTRA BOOST - ULTRA BOOST URBAN: THE BOOST, EXTENDED
You can ride the Ultra Boost just like your standard Ultra tough-gravel bike, only expanding your horizons.
Ultra Boost Urban have the same capabilities of Ultra Boost, just with a more upright position, ideal for commuting or granting additional control.
ULTRA BOOST - ULTRA BOOST URBAN: THE BOOST, EXTENDED
You can ride the Ultra Boost just like your standard Ultra tough-gravel bike, only expanding your horizons.
Ultra Boost Urban have the same capabilities of Ultra Boost, just with a more upright position, ideal for commuting or granting additional control.
ULTRA BOOST - ULTRA BOOST URBAN: THE BOOST, EXTENDED
You can ride the Ultra Boost just like your standard Ultra tough-gravel bike, only expanding your horizons.
Ultra Boost Urban have the same capabilities of Ultra Boost, just with a more upright position, ideal for commuting or granting additional control.
Most comfortable road & all-road, compatible with standard and Integrale stems
Comfort with extra control
Buy now. Pay later. Interest-free with Klarna.EXPLORO ULTRA: UNSTOPPABLE Back to the Exploro start page
Get to the worst roads fast with the aero frame & road-inspired riding position
Keep your grip with massive tires (not very aero but you’d be surprised at the speed)
Go for a standard round, dropper or suspension post inside the Ultra's aero seattube
Add a few packs and the Ultra is ready for epic overnight adventures
CONFIGURATIONS
Ultra Frameset
Ultra Rival 1X11 700C
Ultra Force Eagle 1X12 650B
ULTRA APEX XPLR AXS 1X12 700c
Ultra Rival XPLR 1X12 700C
ULTRA FORCE D2/EAGLE AXS 1X12 CRANKBROTHERS EDITION
THE ALL NEW EXPLORO ULTRA
If you’re like us, you love riding in rough terrain but live in a more urban jungle. So you need a bike that is fast on-road and capable off-road.
The Ultra is our most extreme bike, starting out the design process with 55-61mm wide tires. We then designed the whole aero package around those to keep the on-road speed high. If you ride on less extreme terrain, you can also fit 700c tires up to 45mm WAM (With As Measured) on the Ultra.
If you’re looking for a bike that is even further optimized for speed with narrower tires (35-46mm WAM), then the Exploro RaceMax is your perfect match.
IT ALL STARTS WITH THE TIRE
To make the fastest possible gravel bike, you need to start with the tire. Tire choice determines comfort & grip. But it also determines how you can shape the frame to redirect the 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. But it’s not easy, as the tire dimension depends on the rim you use, the pressure and of course how accurate the manufacturer’s claimed size is.
So we took hundreds of measurements to know the real tire widths (which we call WAM - Width As Measured and RAM - Radius As Measured) and use that to engineer the frame around.
SO WHAT TIRE DO YOU NEED?
- Terrain (traction, puncture resistance)
- Rider skill (how much grip you need for control)
- Rider speed (the slower you go, the more you bump/sink into the terrain)
Our favorite tires for the Ultra for each WAM and various rim widths are here.
Please note that running a front derailleur (especially an electronic version) will limit the tire width you can fit.
REALFAST AERODYNAMICS
The Ultra was our most difficult aerodynamic challenge to date. Start with massive 55-61mm tires and then make the bike aero. There’s nothing we can do about the tires, they’re big and the knobs don’t help. What we can do is take the airflow mess that comes off the front wheel and try to catch and redirect it. That’s why you will see the 60mm wide downtube placed closely behind the front wheel, going even wider as it gets closer to the BB.
Blending this into the headtube with an off-center aero profile along with loads of other tricks gives you a bike that feels so much faster than your brain can compute. Because let’s be honest, when you see those tires, your brain gets ready for that slow, boring paved performance of a mountain bike. But thanks to your riding position, the aerodynamics, the BB stiffness and the narrow Q-factor, the Ultra actually feels 100% like a road bike when you want to go fast. Even when muddy.
ULTRA VERSUS RACEMAX
The RaceMax frameset is is fastest with 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. But depending on where you ride and how fast you ride, you may want an even bigger tire for ultimate traction and control. Good news: 90% of the aerodynamic advantage of the RaceMax frameset still works with tires up to 61mm WAM.
In a way, the Ultra is the reverse. It is aerodynamically optimized for 55-61mm WAM tires thanks to its wider downtube near the front tire. This extra width better redirects the air coming off a bigger front tire. If you prefer a smaller tire, you can run a 700c tire up to a 46mm WAM. But as you go to a smaller tire, the Racemax becomes the faster choice again. In addition, the Ultra combines its aero seattube with a round seatpost so you can fit a standard, dropper or suspension post.
DESIGN IN THE DETAILS
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.
HUGE CLEARANCE: The original Exploro set today’s standard for up to 54mm tire clearance. The Ultra has up to 61mm!
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.
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.
PURE-ROAD FORK LENGTH: With the shorter crown, we can make our forks 25mm (1 inch) shorter than other gravel bikes. Exactly the same as a road fork. This offers better stiffness, lower weight, an easier steering geometry and better aerodynamics.
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. Perfect for our custom fenders.
SELF-ALIGNING WEDGE CLAMP: Self-adjusting bolt angle for higher clamping forces with lower torque.
AERO SEATTUBE+ROUND SEATPOST: The seattube is kept aero yet it fits a round 27.2mm seatpost so you have many round, dropper or suspension post options.
GEOMETRIES
| Size | XXS | 51 | 54 | 56 | 58 | 61 |
| Rider Height* (cm) | 145- 160 | 157- 171 | 168- 180 | 176- 186 | 183- 195 | 192 &Up |
| Rider Height* (inches) | 4’9”- 5’3” | 5’2”- 5’7” | 5’6”- 5’11” | 5’9”- 6’1” | 6’0”- 6’5” | 6’3” &Up |
| Stack | 520 | 542 | 564 | 584 | 604 | 632 |
| Reach | 351 | 362 | 373 | 381 | 388 | 399 |
| Fork axle-crown | 375 | 375 | 375 | 375 | 375 | 375 |
| "Road" headtube** | 122 | 142 | 158 | 175 | 196 | 225 |
| Head angle | 68.5 | 69.5 | 71.0 | 72.0 | 72.5 | 72.5 |
| BB drop | 79 | 79 | 77 | 77 | 75 | 75 |
| Seat angle | 72.5 | 72.5 | 72.5 | 72.5 | 72.5 | 72.5 |
| Seattube length | 436 | 463 | 490 | 520 | 549 | 576 |
| Toptube length | 510 | 527 | 545 | 559 | 574 | 593 |
| Wheelbase | 1003 | 1013 | 1009 | 1014 | 1024 | 1044 |
| Front center | 597 | 606 | 602 | 607 | 616 | 636 |
| Rear center | 419 | 419 | 419 | 419 | 419 | 419 |
* Rider heights are approximations. For more accuracy, compare stack/reach with your current bike or visit your 3T retailer.
** Ultra FORK length is equal to a standard road bike, so this HEADTUBE length can be compared to road bikes. To compare to gravel bikes with standard gravel forks, deduct 25mm from these “road" headtube lengths for a proper comparison.
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