how often(in miles) do you have to replace your BB?
12-01-12 | 11:26 PM
#1
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how often(in miles) do you have to replace your BB?
Just wondering what is the average life for different brands model. Obviously it depends on the model too.
Personally I am comparing Sram rival GXP and shimano ultegra external bb. Seems like the Sram one wears out faster?
Personally I am comparing Sram rival GXP and shimano ultegra external bb. Seems like the Sram one wears out faster?
12-01-12 | 11:48 PM
#2
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From: Bay Area, Calif.
Had to get a new spindle and bearing balls after about 60 kmiles for my Shimano 600 (now called Ultegra) BB when the original ball cage disintegrated. It has now gone another 60 kmiles without any more problems. My experience has been that BB failures are rare enough that it's not very meaningful to assign a life to them in terms of miles.
12-02-12 | 12:09 AM
#3
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From: chicago
Bikes: cannondale crit 3.0, specialized allez, old giant mtb/hybrid
Well I had to replace by bb30 after several months because of bad bearings. I have 2 bikes from 93 and 94 with untold miles and the bbs are still spinning like the dickens.
12-02-12 | 07:53 AM
#6
ka maté ka maté ka ora
Joined: Oct 2008
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From: wessex
Bikes: breezer venturi - red novo bosberg - red, pedal force cg1 - red, neuvation f-100 - da, devinci phantom - xt, miele piste - miche/campy, bianchi reparto corse sbx, concorde squadra tsx - da, miele team issue sl - ultegra
I have an older 7400 bb, obtained from southland corporation. It has 250000km on it. And those are mine.
12-02-12 | 08:41 AM
#7
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From: In the foothills of Los Angeles County
You have 150,000 miles on one bike, or have you switched the bb to different frames?
12-02-12 | 09:06 AM
#8
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From: San Diego, CA
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Varies. High-quality square taper or octalink BBs with internal bearings lasted almost indefinitely. I have about 15k miles on my 5500 BB and it's totally fine. OTOH crappy internal BBs (some ISIS models) would let go after only a few thousand. External BBs, from what I've seen here, tend to last less, especially when used in poor weather. Fortunately they are pretty cheap to replace.
12-02-12 | 09:18 AM
#9
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From: CenCal - SLO
Bikes: S2, Wilier GTR (Arr), Giant VT, Myata 3-10
Replaced GPX after 20K miles only becuase me was overhauling the entire drivetrain at the time... again; the replaced is now #1 spare
The mtn GPX was replaced after less than10K miles because it'd become a box of rocks; weather and exposure kill'd it.
line it up, keep it dry - nearly forever.
The mtn GPX was replaced after less than10K miles because it'd become a box of rocks; weather and exposure kill'd it.
line it up, keep it dry - nearly forever.
12-02-12 | 09:51 AM
#10
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Had to get a new spindle and bearing balls after about 60 kmiles for my Shimano 600 (now called Ultegra) BB when the original ball cage disintegrated. It has now gone another 60 kmiles without any more problems. My experience has been that BB failures are rare enough that it's not very meaningful to assign a life to them in terms of miles.
12-02-12 | 09:52 AM
#11
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Replaced GPX after 20K miles only becuase me was overhauling the entire drivetrain at the time... again; the replaced is now #1 spare
The mtn GPX was replaced after less than10K miles because it'd become a box of rocks; weather and exposure kill'd it.
line it up, keep it dry - nearly forever.
The mtn GPX was replaced after less than10K miles because it'd become a box of rocks; weather and exposure kill'd it.
line it up, keep it dry - nearly forever.
More info on travativ gxp please.
12-02-12 | 09:54 AM
#12
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Varies. High-quality square taper or octalink BBs with internal bearings lasted almost indefinitely. I have about 15k miles on my 5500 BB and it's totally fine. OTOH crappy internal BBs (some ISIS models) would let go after only a few thousand. External BBs, from what I've seen here, tend to last less, especially when used in poor weather. Fortunately they are pretty cheap to replace.
I just read online that GXP develops a creaking noise and need replaced after <= 5000 miles..
12-02-12 | 12:02 PM
#13
ka maté ka maté ka ora
Joined: Oct 2008
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From: wessex
Bikes: breezer venturi - red novo bosberg - red, pedal force cg1 - red, neuvation f-100 - da, devinci phantom - xt, miele piste - miche/campy, bianchi reparto corse sbx, concorde squadra tsx - da, miele team issue sl - ultegra
