Bottom Bracket for Heavy Rider

echowitch

I seem to be going through Deore BB's (Hollowtech II) at a silly rate of knots, which has been suggested that it is due to me being on the heavier side. Its been recommended to me to go with a better quality of BB that will last. The suggestions were XTR and Saint BB's. Just wondering if anyone has any knowledge of these and can suggest which to go with

echowitch

The alternate was a Hope BB http://www.chainreactioncycles.com/hope ... -prod80494

nicklouse

What is a silly rate of knots?

echowitch

3 to 6 months depending on usage and weather/time of year

The Rookie

The SLX/XT BB is better sealed than the Deore and not much more, I suspect it is more crud than your power awesome affecting the bearings, that or they aren't running true if your BBshell isn't faced.

nicklouse

I would get the Bb shell faced and still use the Deore ones.

Incorrect frame perpetration is the biggest killer of bearings.

If after having if faced you do not see an increase in bearing life then I would look at the Enduro (RWC) BBs. But it is pointless putting a better BB into a un prepped shell.

rockmonkeysc

I used to get through them quickly. Getting the shell faced made a huge difference.

Levi_501

Go for a Hope ceramic

peter413

I found Deore BB's awful, usually only last a couple of months before seizing. No such issues with the XTR or XT/SLX BB's. Given that you can XTR's for around £20 last time I looked there is no reason to go for a Hope unless you want the shiny colours IMHO.

warpcow

Deores are terrible. Sealing on the SLX/XT one is much better. The difference for me was going from a maximum of 6 months to at least a couple of years life-span. Had the same result on both faced and non-faced BB-shells

Chunkers1980

This: £12

http://www.chainreactioncycles.com/shim ... -prod41445

konanige

i'm a heavy rider myself and have the same issues. I have had frame faced twice by two different bike shops and that's made no difference. I even splashed out on a Hope stainless bb which lasted all of 6 rides before play set in and no the bearings were not overtightened. I have the same problem on two bikes so it isn't the bikes or the cranks, it is unfortunately just down to a system that is designed for lightweight riders and good weather. Outboard bearings are inherently poor as anyone will tell you that the old square tapers used to last ages, my last one took two years to die!! But this is the price we pay for 'stiffness'. Lack of longevity just goes in the parts manufacturers favour. My suggestion to you would be to just buy a superstar bb, a box of 10 cheap bearings on ebay and just pull out the tophats and punch the bearings out of the cups when they die, tap in some new ones and put back together. Takes about 10 mins when you've done it a few times, this has saved me a fortune!!!!

peter413

konanige wrote:

i'm a heavy rider myself and have the same issues. I have had frame faced twice by two different bike shops and that's made no difference. I even splashed out on a Hope stainless bb which lasted all of 6 rides before play set in and no the bearings were not overtightened. I have the same problem on two bikes so it isn't the bikes or the cranks, it is unfortunately just down to a system that is designed for lightweight riders and good weather. Outboard bearings are inherently poor as anyone will tell you that the old square tapers used to last ages, my last one took two years to die!! But this is the price we pay for 'stiffness'. Lack of longevity just goes in the parts manufacturers favour. My suggestion to you would be to just buy a superstar bb, a box of 10 cheap bearings on ebay and just pull out the tophats and punch the bearings out of the cups when they die, tap in some new ones and put back together. Takes about 10 mins when you've done it a few times, this has saved me a fortune!!!!

Out of interest how much go you weigh? I weigh anywhere between 100-110kg and never have any issues with premature wear except when they've been fitted incorrectly. My XTR BB's always last me many miles and when they do go I'm never unhappy with the time they've lasted. I'm not a fair weather either, in fact it often feels like I never ride in anything but the rain and mud. Something really doesn't sound right if decent ones are lasting you a couple of rides then being thrown out.

cooldad

This ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

And I'm no lightweight neither.

mcnultycop

As above, I'm fat and my BBs last a decent amount of time.

nicklouse

konanige wrote:

i'm a heavy rider myself and have the same issues. I have had frame faced twice by two different bike shops and that's made no difference. I even splashed out on a Hope stainless bb which lasted all of 6 rides before play set in and no the bearings were not overtightened. I have the same problem on two bikes so it isn't the bikes or the cranks, it is unfortunately just down to a system that is designed for lightweight riders and good weather. Outboard bearings are inherently poor as anyone will tell you that the old square tapers used to last ages, my last one took two years to die!! But this is the price we pay for 'stiffness'. Lack of longevity just goes in the parts manufacturers favour. My suggestion to you would be to just buy a superstar bb, a box of 10 cheap bearings on ebay and just pull out the tophats and punch the bearings out of the cups when they die, tap in some new ones and put back together. Takes about 10 mins when you've done it a few times, this has saved me a fortune!!!!

If you needed to have it done two times then the first shop did not face it or did not do it correctly. Once done it is done. So now you might have an issue with the shell being too narrow.

No I see that you have the problem on two bike. I wonder what the common connection is?

Who fits them for you?