- GXP BBs : all threaded?
I’ve just picked up a 2016 Whyte 901 , which I know has had very few rides, but there’s a nasty creak which I think is the BB.
I’m a bit baffled by which I need to get as a replacement. It’s listed in the White manual as a ’73mm GXP’, doors that mean it’s threaded?
If so, are there any replacements that aren’t rubbish and aren’t too pricey? From what I gather, the 25 quid SRAM ones have a lifetime best measured in minutes :/ I’m trying to avoid the 75 quid or so for a Hope.
This was all a lot easier when you could just throw in a UN72 and it’s last for years. Or until the taper in the cranks got wobbly.Posted 2 years ago
Not all GXP bbs are threaded, some a press fit. It’ll be pretty obvious what it is though; if the cups have little indentations in them for a BB tool then it’ll be threaded.
I’d check everything else first though; never had a creaky GXP BB, they usually just get a load of play in them when they’re ****.Posted 2 years agodhriderMember
73mm will usually mean its threaded. If you can see the cups outside the frame it’ll be threaded.
I put a Hope BB in my bike last year and it was night and day difference from the cheaper bottom brackets so well worth the investment IMO.
Just remember if you get a Hope one you also need the GXP converters.Posted 2 years ago1timmy1Subscriber
I had a 2016 Whyte 905 and it is threaded 68/73mm bottom bracket. For my new bike which is also the same I just went for the SRAM one for about £20.
Just check that your cranks are tight enough first if you have not already done so. Or take them off and the BB, clean, re-grease and put it all back together and that may cure it. You might find some water in the BB shell as I did in mine when I serviced it (I don’t think there is a drain hole).Posted 2 years agosubmarinedMember
Thanks Y’all 🙂
TBH I haven’t actually checked all the interfaces are tight! I hopped on it last week for it’s second ride, and the creak started, I was in a massive rush, got it home, put it away, and haven’t given it a once over since 😮
Poor, I know.
I’ll give it a check tonight. Cups are external so I guess it’s threaded (sorry, still new to all this newer BB standards lark)
I’ve got a Hope in the other bike and it’s great, but it just seems a bit pricey for the budget/winter bike. If there’s a cheaper option I’m happy to try it.
Will check out the Token option as well.
The odd thing was it only did it for the first 5 minutes or so of the ride – after that it quietened down.
Water inside from excessive washing definitely isn’t the problem, I can tell you that…Posted 2 years ago5labMember
GXP bbs need a huge amount of torque on the bolt as well – you’re not applying pre-load, it needs pretty much most of your weight on an 8mm allen key to get them up tight enough.
I reckon most of the bad press about them is related to people who are used to ‘finger tight’ shimano BB preload bolts not RTFMPosted 2 years ago
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