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The World's Fastest Crank
The 3T TORNO Carbon Crankset features the world's thinnest crank arms to slice through the air, resulting in the perfect aero upgrade for on-road & off-road. Handbuilt at the 3T factory in Bergamo, Italy, it features an integrated carbon axle & spider totalling just 350 grams for the best power transfer.
Solving An Engineering Puzzle
The crank is one of the most complex parts of a bike for aerodynamics; the leading edge of your shape becomes the trailing edge 180 degrees later, you have the major influence of the forward speed and the minor influence of the rotational speed, your feet spin by, the frame is right there, the chain runs over the chainring and can't really be changed aerodynamically, etc.
3T's chosen aero shape is a knife-like 12mm wide at the pedal, significantly thinner than anything else in existence (cranks are usually 15-17mm at the pedal end). In the other direction, the desired profile was much deeper than usual.
The transition to the spider is another headache area. For structural and stiffness reasons, they wanted the spider to be integrated with the crank arm and fibers running through both. Yet also have the chainring separated spatially from the drive-side crank arm (not one blended shape) to avoid aerodynamic blockage. The Torno spider offers exactly that and works in unison with the dedicated Wolf Tooth aero rings.
Features:
- NARROWQ: Narrow is aero and the ultra-thin crank arm blades provide a double advantage: They cut through the air more efficiently and the reduce the Q factor by 4mm, keeping your feet closer together for better biomechanical and aerodynamic efficiency.
- DEDICATED 1X: The Torno is optimized specifically for 1x drivetrains. That allows it to use straight crank arms (no need to clear the front derailleur), which makes them more aero and lighter. It also allows for better spider integration. Perfect for your Strada or Exploro build.
- LAYUP: Of course they can't reveal the exact layup, but it's not just a blend of different moduli but also unidirectional and woven materials. Unlike what you often see, this weave is not cosmetic but an integral part of the structure to achieve the Torno's incredible weight & stiffness.
- CARBON AXLE: Unique to THM is the carbon axle directly integrated in the drive-side crank arm and spider. This is the stiffest and lightest design possible (and unfortunately, also the most complex and most expensive). But when only the best is good enough, this is the best.
- AERO SPIDER: The spider is separated spatially from the drive-side crank for aerodynamic reasons. Structurally however it is integrated with the axle and crank arm as well as the chainring, not only through its four bolts but also via its (patent-pending) countersunk design.
- WOLFTOOTH CHAINRING: These 1x-specific chainrings uses Wolftooth's DropStop tooth pattern for the best performance. The countersunk bolt pattern is dedicated to the Torno spider, transferring your power not just via its bolts but also its shape for optimal power transfer. Sold Seprately.
Specs:
- 350g (for 175mm crank arms, axle, spider)
- 30g (bolt, extractor, etc)
- Fits any frame with one of the following BB shells: BB386EVO, BB30, Pressfit 30 (PF30), Shimano Pressfit, BBright, Italian threaded, BSA threaded (bottom bracket not included)
- Custom aero spider & bolt pattern
- 142mm Q-Factor
- 118mm inner crank width
- 47mm chainline (optimized for 1x in combination with 142mm rear axle spacing)
- Max weight: (rider+bicycle+luggage): 110kg (264lb)
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Please note: This product ships signature required.
Specifications
Weight: 350 grams | |
Discipline: Gravel | |
Speed: 12 | |
Type: 1x | |
Model: Other | |
172.5mm - No Chainring | Mfg PartNum: 9336BADC74L |
Crank Arm Length: 172.5 mm | |
175mm - No Chainring | Mfg PartNum: 9336BADE74L |
Crank Arm Length: 175 mm | |
Reviews
Running the 3T TORNO Carbon Crankset in the Original Narrow configuration with 170?mm crank arms on my 3T Exploro has been an ideal setup for the type of riding I do'smooth pavement, rough roads, and occasional off-road exploring. Even though I'm not chasing race speeds often anymore, the Torno delivers exceptional stiffness and efficiency, immediately noticeable even for a larger rider like me. I chose the narrow version over the Torno Wide because I wanted maximum low-speed efficiency and long-haul aerodynamic gains, and the narrow stance delivers exactly that. Beyond performance, the crankset carries a classic Italian flare, with sculpted carbon lines and a refined aesthetic that feels intentionally crafted rather than merely manufactured. This crankset is serious'a piece of equipment that looks as good as it performs, and performs above and beyond what most riders will ever demand. Paired with the Wheels Manufacturing angular-contact EVO386 bottom bracket, the system runs smooth and creak-free, offering durability and stability across all terrain. While the Torno is undeniably expensive'pushing into the thousand-dollar range and requiring a proprietary chainring'the combination of extreme stiffness, efficient power transfer, durability, and elegant Italian design makes it a standout choice for riders who value both performance and style.
Mechanic's Corner
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