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Tick,Tick,Tick... Maybe Need A New BB?

Kaiser SoseKaiser Sose Posts: 90
edited 3 July in Workshop
My bike has the Shimano Ultegra BBR30 bottom bracket. It is the original one that came with this BMC bike when I bought it eight years ago. I had the BB out once when I had to have the frame repaired about five years ago. I've done about 20k miles on it I'd estimate.

I've got a tick, tick, tick sound associated with crank revolution. Gear change is fine. I have eliminated just about every other thing, pedals and shoes included. Still does it. Next step is have the cranks off. Whilst I am at it I am thinking I might as well change the BB - they are only £25 or so.

What does the Oracle think please? am not the most expert at bike maintenance but I am learning and this BB type is easy to swap.

Posts

  • MattFalleMattFalle Posts: 5,546
    Its cheap, done a load of miles and there are no down sides at all to changing it.

    go for it.
  • masjermasjer Posts: 222
    I know it's obvious, but check the crank arm isn't hitting the cable end on the front derailleur. This'll give you a tick on each rev. Otherwise, a new BB
  • Kaiser SoseKaiser Sose Posts: 90
    I checked that already masjer, but a good call.

    BB ordered and Parktool for doing it so that I can do all my bikes myself moving forward.
  • Kaiser SoseKaiser Sose Posts: 90
    Bottom bracket replaced, problem gone :)

    Maybe a guy with my size and power should replace this annually as a consumable component. It is a quite cheap and critical drivetrain component, £24.99, and a 20 minute job to change with the right tool - Parktool BB tool I also bought and now have for future changes on this and my other bikes.
  • MattFalleMattFalle Posts: 5,546
    edited 4 July
    how much power? do you have a number?
  • Kaiser SoseKaiser Sose Posts: 90
    edited 5 July
    It goes well over a thousand on Kickr indoor trainer as an instantaneous value over a few seconds when I really put my foot down on short, sharp hills, assuming it is measuring correctly. Maybe that stresses the BB with the sudden torque???? Dunno, anyway, I replaced it and it is an easy job so I might as well swap this component and chain once per year. Once you have the bike it is not an expensive sport really is it? A BB, chain, cassette maybe and a couple of tyres per year.
  • photonic69photonic69 Posts: 1,211

    .... Once you have the bike it is not an expensive sport really is it? ......

    Ummm....n+1; n+1+1; n+1+1+1; GPS devices; Helmets; New Jersey; New Winter Jacket; New Waterproofs; Other Waterproofs cos the last one wasn't really that good; Another Waterproof cos you can't remember where you put the other two; Shoes; More Shoes; Overshoes; Wheels; Other "Best" Wheels; ....

    I could go on ;)

  • Kaiser SoseKaiser Sose Posts: 90

    .... Once you have the bike it is not an expensive sport really is it? ......

    Ummm....n+1; n+1+1; n+1+1+1; GPS devices; Helmets; New Jersey; New Winter Jacket; New Waterproofs; Other Waterproofs cos the last one wasn't really that good; Another Waterproof cos you can't remember where you put the other two; Shoes; More Shoes; Overshoes; Wheels; Other "Best" Wheels; ....

    I could go on ;)

    Lol, well, I suppose if you look at it like that then, yes, it can get pricey. The key is, don't look at it like that ;)
  • amrushtonamrushton Posts: 1,040
    Saw these on ebay - bargain, but saw these so must sell the first lot. Another must-have rain jacket/helmet/ pair of shoes that will pedal for me. I could go on ;)
  • Kaiser SoseKaiser Sose Posts: 90
    There is a big difference between "need" and "want". At least, that's what I am always telling my daughters....😂
  • amrushtonamrushton Posts: 1,040
    Also depends on the quality. A Royce, hambini or Phil Wood BB may be a worthwhile investment but bearings do need changing occasionally
  • OnegearOnegear Posts: 76
    Did you change the front derailleur cable recently?

    One time when i was young i got the dreaded tick tick tick and after a season(!) realised my front derailleur cable was long and my crankarms were hitting the cable cap at the 11oclock position *smh*
  • pilot_petepilot_pete Posts: 2,098

    It goes well over a thousand on Kickr indoor trainer as an instantaneous value over a few seconds when I really put my foot down on short, sharp hills, assuming it is measuring correctly. Maybe that stresses the BB with the sudden torque???? Dunno, anyway, I replaced it and it is an easy job so I might as well swap this component and chain once per year. Once you have the bike it is not an expensive sport really is it? A BB, chain, cassette maybe and a couple of tyres per year.

    Your original BB lasted 8 years and 20k miles! Why on earth would you change it every year when it would only be 1/8 worn! That would be £200 at today’s prices over the next 8 yrs as opposed to £24.99 over the same 8 yrs. I am sure there are other nice things you could spend that £174.93 on!!!
  • seanoconnseanoconn Posts: 8,063
    There’s a chap on here @hopkinb is an expert on ticking BB’s. He’s your man 👍
    Pinno, מלך אידיוט וחרא מכונאי
  • hopkinbhopkinb Posts: 7,010
    It's never the bb. Or nearly never. My latest click was insufficiently tightened cleat retaining mechanism in the pedal, which I've now actually realised is worn cleats, so when I put the power on, or hit a hill, the cleat is clicking in the pedal.

    Time before that, it was a spoke nipple that was rattling.

    Time before that, it was the lace on my drive side shoe, hitting the chainring.

    Also front derailleur cable on crank.

    It's nearly always something silly.
  • pinnopinno Posts: 42,474
    Have you checked your chain ring bolts?
    Is the click regular or irregular?
    seanoconn - gruagach craic!
  • Kaiser SoseKaiser Sose Posts: 90

    It goes well over a thousand on Kickr indoor trainer as an instantaneous value over a few seconds when I really put my foot down on short, sharp hills, assuming it is measuring correctly. Maybe that stresses the BB with the sudden torque???? Dunno, anyway, I replaced it and it is an easy job so I might as well swap this component and chain once per year. Once you have the bike it is not an expensive sport really is it? A BB, chain, cassette maybe and a couple of tyres per year.

    Your original BB lasted 8 years and 20k miles! Why on earth would you change it every year when it would only be 1/8 worn! That would be £200 at today’s prices over the next 8 yrs as opposed to £24.99 over the same 8 yrs. I am sure there are other nice things you could spend that £174.93 on!!!
    Agreed. Maybe once per year is indeed a bit excessive. Every couple of years with a regrease once per year should be fine.
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