argghhh campag centaur carbon 10spd shifter gear cable fit WTF?

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  • the circlip from an ultratorque axle

    er, what’s that you say?

  • Umm. And the bendy smiley one? Don’t appear to have that. Will I die?

  • wonders if those dropouts might actually be ok to run fixed and throw away all the gears

  • but a mallet w/punch or a two arm puller you'd use to service the bearings of said crankset does the job.

    Not sure how you’d use a punch to remove the crankset without marring the finish, or more importantly, risk damage to the axle ridges that are supposed to fit very tightly inside the left crank.

    IME that’s actually why powertorque was a pretty but ultimately doomed system: every time you remove the left crank, you lose a bit of close tolerance in the fit.

    Also, if memory serves, the powertorque left crank is rounded enough on the frame side so that a simple puller doesn’t work. You need the dedicated £50 U shaped tool to go around the crank, and that tool (plastic and metal versions) is stupidly easy to break.

  • not sure how

    IME

    Wear of the assembly is negligible since the product would be long obsolete at that point.

    Also, if memory serves

    Readily available documentation suggests otherwise.
    https://youtu.be/L1_3smRyk-w?t=133

  • Wear of the assembly is negligible since the product would be long obsolete at that point.

    Appropriate bearings can be sourced elsewhere. It’s a >£130 crankset, users should be able to expect to replace the bearings a few times and have it keep working. It’s an obsolete design precisely because of the wear on that assembly point.

    not sure how

    (hammering)

    Also, if memory serves

    Readily available documentation suggests otherwise.

    Cheers. I remember doing that actually. I also remember using 2 different bearing pullers and not gaining enough purchase to remove the crank arm, including the park tool one (which most bike shops are likely to have). Couldn’t get the arm off without park’s tool. * shrug * (edit-this was done one different crank arms, not just a single seized one).

    Feeling a bit talked down to, frankly.
    Edit my tone.

  • It’s an obsolete design precisely because of the wear on that assembly point.

    You're free to second-guess Campagnolo's R&D, I just don't see any factual evidence of it being a concern.

  • Well, got a smiley circlip and the wavy washer for the axle on the nds as well, so all fitted and hopefully sound.
    Now, just need to replace the rear gear cable as I cut it too short before getting the guide cable length right. And hey, guess what? I can't get the cable out of the shifter as the ratchet's not working again. I know! Who'd have thought! Fudketty fudketty flecking fluck.

  • For other folks who might be interested, people have been mentioning power torque’s spline problem for years. 1st google result after ads was this:

    https://yacf.co.uk/forum/index.php?topic­=95556.0

  • For other folks who might be interested, google turned up one MAMIL saying something relevant to my point six years ago

    FTFY. I’ll reiterate:
    There’s little to none anecdotal or factual evidence to support your perceived flaw in the design.

    Sure enough, PT is shit on several levels, but if the point you insist on making would be an actual issue, we would’ve heard a lot more about it by now. You’re case in point is hardly compelling, one instance of “worn splines” can mean anything from out of spec machining (QC issue- warranty case) to installation error, MAMIL didn’t post much to go by.

    You still going on about this sounds like an attempt to “save face”, unwilling to admit not having put much thought or research into it beforehand.
    Something I, admittedly, haven’t got much tolerance for lately, no ffence intended.

    @crossedthread
    It does sound like there’s something wrong with the shifter. Seek out second opinion by LBS and, assuming you got the shifters recently, communicate the issue to the seller?

  • I need to respond here, in recognition to all the people have had helped and offered advice (and also the seller, on here, who was a real star.)
    Ricki at panbgourneCycles fixed all the things as he has huge Campag skills and it's my crap lack of experience on later 10-spd set-ups that dominated the thread - which shouldn't reflect on the manu (I have Campag kit on a load of other bieks from c.60's to the '00's but which is limited to 5, 6,7 and 8spd and SS, so my ignorance really...) - and this appeared to be a specific to a UT shifter (not PT or otherwise, crankset) issue.
    Any road, all's set up now, and am really antsy to test it now am starting to feel better :)

  • There’s little to none anecdotal or factual evidence to support your perceived flaw in the design.

    Sure enough, PT is shit on several levels, but if the point you insist on making would be an actual issue, we would’ve heard a lot more about it by now. You’re case in point is hardly compelling, one instance of “worn splines” can mean anything from out of spec machining (QC issue- warranty case) to installation error, MAMIL didn’t post much to go by.

    My first instinct was to reply to you a way I haven’t replied to anyone else on here before, but I’m not going to, because you never know what the person on the other side is going through, especially in times like these.

    If you had done any research yourself, you’d know that spline couplings are a known point of mechanical failure, especially when you introduce forces at angles beyond the original design like with BB bearing failure. My personal experience (literally wrote IME) has seen multiple failures on power torque cranks at the splines. I think one of the reasons they’ve discontinued PT is because of this.

    Much more expensive and venerable R&D depts than Campagnolo get things wrong (eg, NASA, Boeing, Ferrari), and Campag has produced its share of duds before. Your myopic subservience to a brand and their R&D makes me suspect you’re either 1) connected to them in some way, or 2) a sucker for branding. In either case, do your own research, and reconsider how you talk to people.

    You still going on about this sounds like an attempt to “save face”, unwilling to admit not having put much thought or research into it beforehand.

    Don’t be daft. I’m providing my honest real-world experience to help literally total strangers on here for nothing in exchange. Instead of dismissing my experience out of hand, the least you could do is show a measure of civility and respect, particularly as I called it out in my first response to you. If I’d misunderstood the mechanism of failure, then it’s an honest mistake, but even @gbj_tester doesn’t answer people with your condescending attitude.

    Don’t bother replying, I’m not going to see it.
    ✌️

  • even @gbj_tester doesn’t answer people with your condescending attitude.

    If you think that, you're clearly too stupid to understand half my comments 🙂

  • If it helps anyone out, I've put zero thought into this: FUCK Campag everything. Fucking 7.5mm allen key fuckwits can get fucked.

    Happy? Shimano ftw.

    Yes, I'm drunk, have at it.

  • If you think that, you're clearly too stupid to understand half my comments 🙂

    Didn’t see that coming, surprised at how sad this thread has made me feel. Ah well.

  • Good lord, you really are quite charming.

  • Didn’t see that coming

    What did you expect when you invoked my name as the ne plus ultra of condescension 🙂

    surprised at how sad this thread has made me feel

    Have an extra smile on me 🙂

    To be fair, I think Gertrude is half right and you're half wrong about PowerTorque, but Campag's ill-advised attempt to make a crank cheap enough to live in the mid-price OEM market isn't really relevant to this thread.

  • Ha ha! Shimano? Never heard of it. Everything was fine before - mirage 8spd brifters, centaur skeletons, veloce 9spd fm, chorus 8spd rm, chorus 10spd sq taper chainset, 10spd block - will teach me to try and matchy upgrade :)
    Right, where’s that Simplex mini group...

  • My mate swears by his Campag. But he's still using a groupset from the 90s or 00s so maybe the older stuff is a bit less faff? I just remember having to hunt for stupid sized allen keys and swore I'd never use any more Campag

  • Didn’t see that coming

    What did you expect when you invoked my name as the ne plus ultra of condescension 🙂

    You’ve misunderstood or I’ve misspoken, English isn’t my first language. I meant you’re the site wide mechanics authority and don’t treat people like shit. Usually. Hope that clears it up as I respect you.

    I’m not in a good place, so I won’t be around for a while. Thanks to folks who’ve helped me and other with their mechanicals.

  • You’ve misunderstood or I’ve misspoken

    I think you've misunderstood. I took your comment as friendly banter and responded in kind, liberally peppered with emoji to try to avoid falling foul of Poe's Law. Didn't work, obviously, but I hope you get it now.

    Even Gertrude wasn't being quite as much of a cunt as you took her for. I'm sorry you're not feeling the love, this place has more than anywhere else online, despite the self-deprecating scare quotes everybody puts around "Friendliest Forum on the InternetTM"

  • Poe's Law

    And fuck Poe too!

    *sorry just wanted in

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argghhh campag centaur carbon 10spd shifter gear cable fit WTF?

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