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3T Exploro LTD Frame

3T Exploro LTD Frame
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There is something magical and fun about riding on a mixture of surfaces, and only the EXPLORO delivers on all terrains. Its road geometry is fast on good surfaces and capable on bad ones. Its clearance for up to 2.1” mountain bike tires means nothing will stop you. And the aerodynamics are so good that even with knobby tires, it outperforms round-tube road bikes with skinny tires. There’s simply nothing else like it.

The Exploro is designed to fit road, cross and even mountain bike tires following the GravelPlus standard. The road and cross tires are 700c, the mountain bike tires use the 650b size, ensuring that all of these have virtually the same overall wheel diameter and therefore the same predictable handling.

Why is aerodynamics important on allroad (asphalt, gravel, fire roads, single track) rides?

- You may go slow off-road, but on the connecting asphalt sections, you need road riding speed.
- If you’re slow because of gradients, aero doesn’t matter much. But if it's due to head- or crosswinds, you're slow relative to the ground but very fast relative to the air, and that’s what determines the resistance you experience (that’s exactly why you’re slow).

We didn’t want the Exploro to be fast in theory, but fast in the real world. So we tested at a realistic 20mph (32kmh) instead of the standard 30mph (48kmh) and optimized the frame for water bottles (tough to do long, epic rides without). We even designed the Sqaero shape to work well when covered in mud! The result? A muddy Exploro with 40mm knobby gravel tires and 2 water bottles is faster than the equivalent clean round tube bike is with 28mm slick road tires and without bottles.

The key to the Exploro’s speed is the aero downtube that is wide enough to catch the airflow coming off the big front tire (a skinny downtube wouldn’t even touch the airflow). But at 50mm wide, a full airfoil with a normal ratio would have to be 150-200mm deep, causing too much surface drag. So we square off the tail, keeping most of the aero performance with a 50x75mm cross section that is also close to perfect for strength and stiffness; our Sqaero shape. The wide downtube also effectively shields the water bottles.

We also use Sqaero on the headtube, seattube, seatstays and seatpost.


Frame Unidirectional carbon - ultralight layup
Internal routing via interchangeable FlipTop covers for 1x10/11, 2x10/11, Di2, eTap
100mm front-post-to-bearing-bore-edge bag mount
Fork Luteus II LTD
Headset Integrated tapered IS42/28.6 | IS52/40
Axles Front: 100x15mm
Rear: Syntace X-12 thru-axle 142x12mm
Bottom Bracket BB386EVO
Wheel Compatibility 700c, 650B
Front Derailleur Max inner ring: 36T
Max outer ring: 50T
Max single ring (offset ring): 46T
Max single ring (flat ring): 50T
Brake Compatibility Front: Post mount for 160mm disc
Rear: Post mount for 160mm disc
Seat Post 3T Charlie Sqaero
Accessories & Extras 1 front and 2 rear derailleur hangers, front derailleur cable liner, noise-cancelling foam sleeve for rear derailleur housing and brake hose

* Subject to change without notice.

Part Numbers

Option UPC MPN
Black/White / Small 04897055278722 5130BDAX08N
Black/White / Medium 04897055278739 5130BDAY08N
Black/White / Large 04897055278746 5130BDAZ08N
Black/White / X-Large 04897055278753 5130BDBA08N