Viewing 21 posts - 1 through 21 (of 21 total)
  • Help me fix a clicking bike
  • lunge
    Full Member

    Before I get angry and throw £1k at a new frame, I really should try and fix the clicking I’m getting. So STW, can you help with the following symptoms and suggest a few things to try to fix it please? All the below is new ish, under 400 miles use anyway.

    Set up:
    Carbon road frame, PF86 BB, Ultegra cranks, Hope BB (newer, under 50 miles old), Ultegra SPD-SL pedals.

    Symptoms:
    Clicking noise on the down stroke when I press on the drive side pedal, it seems to be at about when the cranks are horizontal where I guess there is the most power going through them. I don’t think the noise is there when I press the non-drive side down

    What I’ve tried:
    New Hope BB fitted by a reputable LBS. This fixed a more general creak but not this click. I’m told the BB went in “really nicely” whatever that means.
    Tightened the Rear axle and cassette up.
    Re-greased the headset. The bearings are cartridge type and sit directly in the frame. They did come out a lot more easily than expected in that the simply dropped out of the frame. This is a possible cause though how I fix it I don’t know.
    Cleaned and tightened bar and stem.
    Cleaned, re-greased and reinstalled the cranks. I made sure the chainrings were tight at the same time.
    Made sure the saddle was tightened up correctly though the rails are not greased or have any carbon grip on them (ti rails, alu fittings on a carbon post).

    So what else should I try?

    kilo
    Full Member

    Change the pedals Mrs kilo has had two sets of Shimano road pedals that started to click very early on

    lunge
    Full Member

    Change the pedals? Now why the hell did I not think of that? I’ll try that as a start, great idea.

    Any other ideas?

    Twin
    Free Member

    Check your rear wheel bearings. I had a really annoying click that only happened when pedalling. Turned out the wheel bearing was on its way out but only clicked when under load from pedalling.

    hooli
    Full Member

    Pedals or seat area is my guess. Try changing the pedals as above, also does it make the same noise standing up?

    senorj
    Full Member

    Greased both front and rear quick release ?
    A drop of lube on spokes ,where they go into the rim & axle?
    Tighten crank arms?

    Bimbler
    Free Member

    GT85 them saddle rails, clamps

    thetallpaul
    Free Member

    One of the noises I encountered was a rear dropout screw being slightly loose.
    Also have you tried applying assembly snot/grease to the seatpost?

    All the above suggestions seem to have covered most items on the bike 😀

    lunge
    Full Member

    Good suggestions all, thank you.

    My best bet seems to be a complete bike rebuild, not ideal but if that’s what it takes I will have to do it!

    cheekyget
    Free Member

    I remember seeing an old VW advert once……..it was the earrings …….do you wear??…..haha ha

    Pedals!!!

    twicewithchips
    Free Member

    front mech cable hitting the crank?
    GT85 up under the saddle where the rails go in to the top of the saddle (and the clamps etc as noted above)?
    Cleat moving in pedal – GT85 should quieten it before buying new pedals.

    bikebouy
    Free Member

    a) I’m for saddle rails and/or rails into the seat itself. I soak mine in a light chain lube rather than GT85 but it does the same thing.
    b) Then I’d try the seatpost too, take the clamp out/off, post out, re grease with paste, soak the clamp in chain lube/GT85 then tighten back up.
    c) peddles & cleats in shoes. Again take off, lube, re seat, tighten, check entry spring on peddle and also if you can re grease the peddle shaft or check the spring clip on the peddle shaft (if it has one)

    Use a torque wrench to manufacturers settings.

    stumpy01
    Full Member

    Right knee problem?

    Or perhaps the front mech cable end clipping the crank?

    gravity-slave
    Free Member

    Infuriating isn’t it – just gone/going through this with a brand new carbon bike with new pedals, click on one pedal stroke, started about 200 miles in and only done about 500 now.

    Ride no handed to eliminate stem/headset/bars
    Ride standing to eliminate seatpost/saddle

    Check and grease everything you’ve just ‘eliminated’ 😉

    I then worked back up:
    Cassette tightened
    QR lubed and checked
    Replaceable dropout removed, greased, replaced
    Chain lubed
    Chainrings tightened
    Cranks reinstalled and torqued
    Pedals greased and torqued
    Checked cleats, tightened, also rode in flat shoes to rule this out.

    Finally, since the bike has been pretty much rebuilt, I knocked out the PF30 BB, applied anti seize to the cups and also BB axle (apply to drive side of axle and inside of non drive side bearing so it’s not all smeared off when inserted) and reinstalled. Quick ride was silent so let’s see how long it lasts! If it works then returns, I’m going for Loctite retaining compound on the BB shell (with primer) and crank axle.

    Good luck!

    velomechanic
    Free Member

    Serviced a road bike recently with a regular click from the bottom bracket area when the cranks were under load at the 3 o’clock position. After stripping the whole drive train down, I eventually traced the issue to the five smallest cogs on the cassette digging in to the raised portions of the aluminium (DT Swiss) freehub body. Under load the cog moved a fraction of a degree into the resulting tiny slot and burr, causing a click which travelled along the chain and resonated from the bottom bracket area. Having filed off the burr, the clicking stopped.

    lunge
    Full Member

    velomechanic, that is super suggestion. There is some burring on the freehub but as the cassette came off I did nothing with it, I shall attack that with a file. Come to think of it, the click does stop when consciously pedal circles rather than stamping down.

    Gravityslave, never thought about the grease moving from axle when it’s inserted so will make sure that is done too.

    Thank you all.

    oldnpastit
    Full Member

    I had exactly this – a small but annoying click as the pedal goes round.

    PF86 – check
    Carbon frame – check
    Tried everything else – check

    Eventually fixed this about a week ago by removing the old PF BB and putting in a new one.

    When replacing:

    – make sure you completely clean the frame’s surface
    – put some loctite on.

    See my thread(*) here

    http://singletrackworld.com/forum/topic/i-hate-pressfit-bbs

    (*) Did you see what I did there?

    bigyinn
    Free Member

    Dry chainring bolt?

    velomechanic
    Free Member

    Lunge, Hope that works for you. Tends to be the five smaller cogs that dig in, as the bigger ones are typically on a carrier which spreads the load.

    If that fails, you might want to try one of these: http://www.lislecorp.com/divisions/products/?product=325

    zero-cool
    Free Member

    I’ve just spent the last few weeks swapping out various combinations of DU bushings and offset shock mounts trying to sort the maddening click/creak/cracking noise on my Orange Alpine only to ride it tonight and realise it’s the bloody BB/cranks!

    gwaelod
    Free Member

    Tighten the bolts in the cleat in the right hand shoe

Viewing 21 posts - 1 through 21 (of 21 total)

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