THM Carbones Clavicula SE road crank

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  • The full carbon crank without compromise.

    Clavicula sine exceptione — No rule without exception! THMs top-line, full-carbon crank with integrated carbon axle is engineered like no other. In development they focused on optimizing its geometrical and structural definition, based on a precise analysis of load paths. As a result, it is extraordinarily stiff in all planes, exactly what’s required for loss-free power transmission.

    They are particularly proud of the patented connection between left-hand crank and axle — THM is the first to successfully productionize a carbon-to-carbon interface at the heart of the bicycle drive train. Aligning the fibers of the external and internal splines reduces wear to near zero and eliminates noise. And, of course, it’s lighter, 293 g with spider. Clavicula SE beats all of THMs own benchmarks and is the new reference in crank design.

    It fits any frame with standard 68 mm BSA shell. Available for BB30, BB30A, Pressfit30, Shimano Pressfit, Italian threading, BB386 EVO, BBright-Pressfit. BBright Direct Fit (only Cervelo frame R5ca) and BB 386 (only AX Lightness frame ViAL EVO) also available.

    Product Information
    • Weight: about 302g (130mm) / 293g (110mm)
    • Diameter axle: 30 mm
    • BCD: 5 bolt 110 mm or 130 mm
    • Q-Factor: 148 mm
    • Chainline: 43.5 mm
    • Inner width of the cranks: 118 mm
    • Available lengths: 170 / 172.5 / 175mm
    • Max. permissible total weight (rider + bicycle + luggage): 120kg


  • Rate this product

    • Rex 21/06/2018
      stiff, lightweight, gorgeous
      The best crank in the world! Very stiff, superlight, gorgeous. The 172.5mm crank with matt finish weight just 395g ap.. Currently, it's the lightest crank I have ever seen. Once combined with carbon-ti chain rings, you get the best crankset!

    • Kane 05/07/2018
      Really nice to fast shipping and great support.

    • Tim 27/05/2020
      Zero Complaints.
      I have two sets and have not had one single problem over thousands of miles. They are incredibly light, stiff, and in my view the best looking cranks on the market. Of course I did not trust myself to install these myself and had my mechanic do it (he's been working on bikes for probably 40 years), so that may be why I've never had an issue.

    • macrogun 23/07/2019
      Siffness and Lightweight

    • armando  30/12/2019
      read above
      2 flaws in this crankset:

      1. SPACER CONE, THAT GETS INSERTED INSIDE THE AXLE ON THE NONE DRIVE SIDE. The plastic cone is too wide & what ends up happening is that once it is inserted in the BB, it is so tight that once the crankset is assembled and spin the crankset, it will only do 1/2 a revolution, which indicated that the plastic is preventing the bearings from spinning & it even gets worst when you start pedaling, as if the brakes are being applied.
      So what you will have to do is take the spacer cone and sand it down w/ a sand paper in the outside to remove the excess plastic. Once you achieve by removing the right amount of plastic, watch it spin freely, the way it should be.

      2. COVER PLATE:
      The cover plate that is in the non-drive side has so much stress during the pedaling process. The plate is what keeps the crankset whole or intact, (FYI, that pinch bolt that is attached to the non-drive side crank arm does nothing)
      so every time your:
      == standing up and rocking the bike left / right & your right foot is at
      6 o clock and the frame is leaning to the right, at that point you are actually pulling the HEAD plate with your feet, & at that point the head plate & nut end that gets screwed in the axle will separate (it will take time, for me about 3000 miles).
      == the other one, is when you're doing a very sharp cornering to the left, and take your body and lean to the right & your feet at 6 o clock.
      Luckily when the head plate separated from the nut end, I was on the flats (all I heard as if a coin fell on the ground and I was like, what was that, till 3 block later I noticed the head gone and I thought that the whole thing came loose and fell off, while in actuality, it broke in half). & I was surprised that the
      non-drive side crank did not come off for the next 10 miles (please note, the non-drive side crank will come loose and the crankset will come off the frame at some point, so go straight home, do not finish your ride). Can you just imagine if that were to happen on the turns or during a climb.
      Also the nut end, will not be a problem removing it inside the axle, you can just take an Allan wrench to remove it.

      After this happens, you will not be able to ride your bike till you replace the part. So since this happened, it is safe to say, you best purchase several of these plates, as this will be a REOCCURRING PROBLEM.

      Bottomline, if my AX Lightness frame, could accept a Campagnolo crankset, I would do a way with this product, as well as these light components as they are nothing but a headache, even thou light in weight, they either don't function properly or don't function at all, longevity is an issue & not to mention poor quality. In the end you're just throwing money away.
      NO offense to the Germans, the idea & concept is great, but there are flaws to the ideas that are not address during the R&D phase, but then again, I believe they are aware of these flaws and just don't care.

    Altogether 5 reviews for THM Carbones Clavicula SE road crank with an average rating of 4 points.
  • THM Carbones has been awarded with the German seal of quality by federal research organization.

    Since 20 years THM Faserverbund-Technologie GmbH explores the best possible approaches in case to engineer high-performance and state-of-the-art components.

    The exact direction of the carbon fibre along the force flow leads to an optimal use of the material's potential. Hereby THM Carbones has been inspired by the structure of natural bones in case to reach maximum performance in comnbination with least weight of the particular components.

    Finally THM achieved being honored with the German "Innovativ durch Forschung" award.
  • Attachements
    Manualinstruction manual
    7.73 MB
    Manualinstruction manual
    7.72 MB
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This item is crafted in Germany