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3T Exploro Race Shimano GRX 2X - Grey/Orange 2021

by 3T
$4,699.99
Size

THE ALL NEW EXPLORO RACEMAX

Whether riding road or gravel, we love speed. So everything on the new 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 (the “RACE” set-up on this page) or as an unstoppable machine with very wide tires (the “MAX” set-up over here). You choose. And with two wheelsets, you can switch between RACE & MAX 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 tire radii (RAM - Radius As Measured) and use that to engineer the frame around.

SO WHAT TIRE DO YOU NEED?

WAM_RAM
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.

REALFAST AERODYNAMICS

REALFAST

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. Because 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 - RACE VERSUS MAX

RACE_VERSUS_MAX

The RaceMax frameset is is fastest with 35-42mm WAM tires. That’s when its top speed rivals the best road bikes out there. We call this the RACE set-up. 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. That’s the MAX set-up. 

So maybe you’re an all-roader mixing road & gravel or a gravel racer getting the most out of their RACE set-up. Maybe you’re looking for an unstoppable MAX set-up. Either way, the RaceMax gets you there, and gets you there fast. Maybe you want it all, in which case a dual wheel set-up - one for fast rides and one with the biggest tires - is the right choice for you.

DESIGN IS IN THE DETAILS

PERFECT AERO CUTOUT

PERFECT AERO CUTOUT: Close-fitting cutout to shield the rear wheel and achieve the most speed.

MIND THE GAP

MIND THE GAP: No oversized gaps between front tire & downtube for better airflow transition and less turbulence.

HUGE CLEARANCE

HUGE CLEARANCE: The original Exploro set today’s standard for 54mm tire clearance. The RaceMax has 61mm!

75MM DOWNTUBE BASE

75MM DOWNTUBE BASE: Lower downtube aero profile is 75mm wide to fully shield water bottle.

46MM DOWNTUBE NECK

46MM DOWNTUBE NECK: Upper downtube necks down to 46mm to pick up the airflow coming off the front tire.

SIZE-SPECIFIC DOWNTUBE

SIZE-SPECIFIC DOWNTUBE: Reduced depth on smaller sizes to keep frame compliant and keep space for bottles.

NARROW HEADTUBE

NARROW HEADTUBE: Headtube is sized like a road bike for a small 1 1/4” steerer for optimal aerodynamics.

BIG STEERER

BIG STEERER: Inside that narrow headtube is a big 1 1/2” steerer for best strength and stiffness.

MINMAX HEADSET

MINMAX HEADSET: To fit this big steerer inside the narrow headtube, we use the custom MinMax headset.

MINIMALIST CROWN

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

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

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

THREADED BB: Our bikes come with threaded BBs for the best alignment and to avoid any issues. yet we do so without threads in the frame as they cause other issues. Read more about our solution here.

DIRECT-MOUNT REAR BRAKE

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

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

INTEGRATED FENDER MOUNTS: Invisible until you need them. Custom fenders coming soon.

CLEAN PERFORMANCE

SELF-ALIGNING WEDGE CLAMP: Self-adjusting bolt angle for higher clamping forces with lower torque.

RITCHEY RAIL CLAMP

RITCHEY RAIL CLAMP: The new standard for gravel bikes, available for round and oval rails.

GEOMETRIES

Exploro
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 355 366 377 385 393 404
Fork axle-crown 370 370 370 370 370 370
"Road" headtube** 125 147 161 180 201 232
Head angle 69.0 69.5 71.0 72.0 72.0 72.0
BB drop 79 79 77 77 75 75
Seat angle 74.5 74,0 73.5 73.0 72.5 72.5
Seattube length 436 463 490 518 545 572
Toptube length 506 526 546 566 586 606
Wheelbase 998 1008 1008 1014 1024 1044
Front center 596 606 606 611 621 641
Rear center 415 415 415 415 415 415

* 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.

Please see photos for detailed specifications.

We ship within the USA and International.

For additional information or photos, please email store@playtri.com or call us at 972-730-3288.