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Racemax

THE PERFECT GRAVEL RACE MACHINE: SPEED IS EVERYTHING

Next-level aerodynamics with rear wheel cutout, narrow headtube, bottle shielding downtube & aero profiles all around

THE RACEMAX IN A NUTSHELL

Whether riding road or gravel, we love speed. So everything on the RaceMax frame is engineered for that. The end result is the first gravel bike that:

- Looks like a road bike

- Rides like a road bike

- Rips through gravel

Best of all, the very same RaceMax frame can be built up with a focus on pure speed with 35-46mm WAM tires in 700c can also be turned into an unstoppable machine with very wide tires p to 61mm WAM. Handy for that epic ride or trip abroad. And with two wheelsets, you can switch between the two setups easily. That’s RaceMax.

IT ALL STARTS WITH THE TIRES

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.

Please note that running a front derailleur (especially an electronic version) will limit the tire width you can fit.

SO WHAT TIRE DO YOU NEED?

The most important dimension is the WAM as that directly correlates to traction, puncture resistance, aerodynamics and rolling resistance. The WAM you need depends on three factors:

  1. Terrain (traction, puncture resistance)
  2. Rider skill (how much grip you need for control)
  3. Rider speed (the slower you go, the more you bump/sink into the terrain)

The graph on the left indicates the WAM you need, and based on the rim width you use,you can find our favorite tires for each WAM here. Please note that running a front derailleur (especially an electronic version) will limit the tire width you can fit.

REALFAST AERODYNAMICS

Starting from our favorite tires, we then engineered a perfectly fitting rear wheel cutout (with mud clearance of course) and a closely trailing downtube to catch the airflow coming off the front tire. We added a super-narrow headtube (yet with a big steerer inside it), a multi-shape fork and aero details from seatstay to seatpost and from the shielded water bottle to the direct-attachment brake mounts.

Most importantly, we engineered this for realistic riding speeds, wind speeds, tire widths, bottle positions and even for mud. We don’t care if it is theoretically fast in the windtunnel with a fantasy spec. We care if it is fast the way you ride it in real world conditions.

RACEMAX VERSUS ULTRA

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 details

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 522 544 566 586 606 634
Reach 353 364 374 382 390 401
"Road" Headtube 125 147 161 180 201 230
Headtube angle 68.7 69.2 70.7 71.7 72.2 72.2
Fork axle-crown 375 375 375 375 375 375
Front center 597 612 607 612 622 642
Rear center 418 418 418 418 418 418
BB drop 77 77 77 75 73 73
Toptube lenght 501 518 536 549 563 582
Seattube lenght 436 463 490 518 545 572
Seattube angle 72.5 72.5 72.5 72.5 72.5 72.5

* Rider heights are approximations. For more accuracy, compare stack/reach with your current bike or visit your 3T retailer.

** RaceMax 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.