As more bicycle brands switch to the new-ish T47 bottom bracket standard, which means that bottom bracket companies are busy coming up with the right solutions to run specific cranksets. C-Bear has been working on their T47 range for around two years now, and they just recently added a new option that should make Campagnolo fans happy.

New to their extensive collection is the external T47 bottom bracket for Campagnolo. That seems to include options for both the 25mm spindle Ultra Torque cranksets (T47-CAM-68, not shown on chart), and the 30mm spindle Over Torque cranksets using the T47-30-68/73-R/C/A. All of their bottom brackets use ceramic bearings, but you do have a choice of Race, Cyclocross, or MTB (A) bearings which have varying levels of sealing and specific grease for longevity in different conditions.

Priced at €179 which includes ceramic bearings, the T47-cam-68 Ultra Torque bottom bracket has a claimed weight of 69g for two cups without bearings, and 15g for the sleeve. They are available now.

With the addition of the external cup T47 Campagnolo bottom brackets, C-Bear now has options for internal, external, 68, 73, and 86mm BB shells, and 24, 25, and 30mm crank spindles including options for GXP, DUB, BB30, Shimano, and Campagnolo. For a larger version of their Bottom Bracket Easy Finder, you can download it from their home page here.

C-Bear also points out that they have been working with a number of frame builders to improve their designs, including 22bicycles and Sturdy who have helped develop a slim fit sleeve to allow for easier cabling.

c-bear.com

9 COMMENTS

  1. I get that weight is an issue but builders should sleeve the bb with aluminum. That way any misalignment could be cleaned using a facing/reaming tool. Why keep fighting these issues.

    • They do it to make manufacturing faster and simpler, not for weight. No matter what engineers on YouTube will tell you, bearing misalignment doesn’t really matter in this application because it’s wasting so extremely little power (and that’s actually what the bearing guy says in his videos too). As long as the BB doesn’t creak, the end user experience isn’t improved with perfect alignment. Case in point, my clients are way way happier on the Niner RLT than they ever were on Look road bikes. Now, is it emblematic of the shortcuts taken across the industry in the name of margins? AbsoLUtely. They should take more pride in their work and make a little less money. Capitalism sucks! In practice though, I am more okay with bearing misalignment when it doesn’t creak than with leaving bladders and artifacts that make cabling harder and with malformed dropouts. Because those have a substantial effect on proceedings.

      • capitalism is the only reason you have a choice in which frame to buy. Just saying. Or, due to capitalism, you could start your own business and make better bikes. all poor manufacturing says is the the buyers of the product either don’t care or don’t know that the frames are inferior.

    • @hurricane, Cannondale has not adopted T47. But we have various bb to suit Cannondale frames, pairing with Shimano, Hollowgram, Rotor, Campa… 🙂

  2. Besides weight, why do t frame builders just put in an aluminum sleeve in their bbs? It’s easier post build to face/ream and align bearings better.

  3. Putting an aluminum sleeve in can make the overall production much much cheaper and faster, depending on facilities and quantities and raw material quality etc. With cheaper carbon and moulding it’s difficult to reliably make a shell that passes QC, so making it slightly larger and gluing a piece of aluminum in to take that up the slack ends up being easier and cheaper. It can also create larger margins thanks to faster, cruder manufacturing methods with higher-grade carbon, since it becomes easier to make a frame and fewer “duds” are thrown out. This is becoming the general practice as many brands return to BSA as the standard, as new BSA shells are increasingly being designed to take up slacker tolerances (DUB wears out more quickly than previous designs) in order to capture OEM account sales. Ultimately the BB type doesn’t have much effect on sales numbers across the market, but it -can- have a dramatic effect on manufacturing cost.

  4. Funny how this seems to be “new” news when I already have a set of these cups from Enduro Bearings since two years ago.

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