I built my bike up about 7 months ago, has 1600 miles so far. starting to hear some sounds, I'm not sure if its the shimano slx bb or the stants 3.30 freehub body. may be even the bearings in my pedals, I can't figure it out. anyway the question is how long does a slx bb and stans 3.30 usually last? should I take out the freehub body and clean the pawls? can this prevent problems? do people clean the pawls before theres an issue and how often?

thanks.

How long all depends on the conditions you ride in. Shimano BB's are very senisitve to the preload you put on the the bearings.

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www.thecycleclinic.co.uk

I would call the hub- maybe bearings, not even freehub body.
Stan's hubs do not stand up well to washing and weather.
I have had Shimano BBs last the life of a frame.

External BB's don't last as long as internal's, they are also critical on the frame facing being square, did you get it faced?

I have heard of them lasting as little as 250 miles on an out of true BB shell and 3000+ on a good shell and run with the right preload and in not too gritty conditions.

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Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956

I bet it's the BB. Tear it down and see how the bearings feel. Put some lube on your freehub while you're at it.

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Trek 5500 - 13.75lbs on a $1400 Budget
20 gram 1x10 chain guide

It is most likely the BB. Remove the chain. Does the crank spin smooth? Can you feel any play? Most BB noise comes from BB/frame threads. Remove BB. Clean threads. Wrap threads with teflon tape and re-install. Make sure chain is clean and lubed. The free hub is very easy to remove. Remove the cassette Using 2-5mm allens loosen the axles end cap. Slowly remove the freehub being careful not to dislodge the pawls. Clean and relube with a light grease. Re-install using a screwdriver to seat the pawls. Tighten end cap.

Make sure you cover the basics before you start replacing parts. Remove, regrease and reinstall pedals. Clean, lube and adjust your wheel QR's. Grease or add carbon paste to seatpost and saddle rails (even if your certain they couldn't be the issue.)

I second checking the seat and post as I once experienced what I thought was the cranks ended up being my seat post. That's an easy fix if you are lucky.

I bet this will be the fix! First thing I always check

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TIME RXR

I also vote BB. NoTubes had some initial issues, with the first three batches of ZTR hubs...all from three different Asian vendors. Since 2011 - they finally found a reliable source to produce the current 3.30 hubs used today.

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Due to the urging of all the ladies...I do NOT shave my legs!

Holy thread resurrection batman!

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Impoverished weight weenie wanna-be!
Budget 26" HT build viewtopic.php?f=10&t=110956