Replace pressfit BB with threaded

epr

I have a Canyon Endurace CF 8.0. I've only done about 3,000 km on it but the bottom bracket has developed an annoying creak. According to the manufacturer's website the BB supplied with this model is Pressfit 86.

The bike is definitely still rideable but the noise is really doing my head in so I'd like to replace. I can't see that pressfit has any material advantage for me so if possible I'd like a good old threaded BB. Do threaded BBs exist that are compatible with my frame? And if so, what do I need to know to ensure I get the right one?

Thanks

akh

No such adapter exists. BB86 shells are wider than shells designed threaded bottom brackets, so the cups would need to sit inside the frame, which there isn't room for.

First.Aspect

I don't know the compatibility with frame and cranks, but this is the general sort of thing you are looking for. Hope do something similar.

https://www.bikeparts.co.uk/products/wheels-mfg-pressfit-30-threaded-abec-3-black?currency=GBP&variant=12748591726681&utm_medium=cpc&utm_source=google&utm_campaign=Google Shopping&gclid=EAIaIQobChMIqZGhjeme8gIVBoBQBh2OSQ3IEAQYBSABEgIzKfD_BwE

masjer

I find Shimano press fit bb86 fine. I've not had a creak, and it's still smooth after 30,000 miles.

First.Aspect

masjer said:

I find Shimano press fit bb86 fine. I've not had a creak, and it's still smooth after 30,000 miles.

Isn't it pot luck with the frame, though? One Cervelo owner has no problems, the other wants to put the bike on a bonfire?

PMark

First.Aspect said:

masjer said:

I find Shimano press fit bb86 fine. I've not had a creak, and it's still smooth after 30,000 miles.

Isn't it pot luck with the frame, though? One Cervelo owner has no problems, the other wants to put the bike on a bonfire?

Yeah, a lot of that will be down to how well the frame is made. All it takes is for the hole to be very slightly out of parallel (it might even look OK to the naked eye) and you are going to get creaking with a standard press fit BB.

Hambini do a line of BBs that have been getting good reviews online, they have a BB86 one and while it isn't a screw in one (like the wheels manufacturing one posted), it is designed to resolve a lot of the problems that cause creaking in modern CF frames. https://www.hambini.com/product-category/bottom-brackets/bb86-bike-frames/

masjer

Yeah, no doubt there are alignment issues on some frames, but many frames just have a plain alloy or carbon tube bonded in the BB area. The two bearing cups are pressed into both ends of the tube and can't be anything but parallel.
Badly sealed BB bearings or ones jet-washed or cleaned using degreaser can have a short lifespan.
I always press the bearing cups in with a lick of silicone grease* which (for me) keeps the creaks away.
*harmless on carbon fibre.

slowmart

@OP use loctite 648 with activator to re seat the bottom bracket.

hpaul

Hi, I used the wheels one for my aeroad cf slx 8.0. It's pressed at one side and screwed it at the other. I bought canyon used, but I'd serious issues with press fit on my propel. So far so good on canyon

feelgoodlost

Loctite the cups whe installing a new Shimano BB. Failing that, buy a Hambini BB86 and never look back. Honestly, the best £160 you're ever likely to spend on your bike. The BB sleeve stays in the frame and you service the bearings using the required presses etc. The dust covers that protect the bearings have done a great job of retaining the bearing life on mine. Rode through all sorts of shocking british weather and have yet to replace them.

No creaks from the bike, much stiffer and less faff. No requirement to take a hammer to your frame each time you want to replace the bearings either.

First.Aspect

The problem with that is sending hard earned money to a complete shock-jock no bend. It is the equivalent of buying farm produce from Jeremy Clarkson.

feelgoodlost

First.Aspect said:

The problem with that is sending hard earned money to a complete shock-jock no bend. It is the equivalent of buying farm produce from Jeremy Clarkson.

If it does the job (which it does) then I couldn't give a toss.

katani

Considering his bottom brackets come with top shelf bearings, which can cost £80 alone for a pair, such as the NTN mine came with, and the shells get heat treated in Germany, the pricing for the standard ones is decent.
You also save on not having to buy proprietary spanners for the installation of a 2 piece bb. WheelsMfg bb's require 2 such spanners. So do Token bottom brackets.

First.Aspect

But he's a blow-hard and I'm just too petty to see past that.

masjer

I think another factor in creaky/short lifespan BB bearings might be installation error.
The bearings have a certain amount of clearance between the balls and races, allowing the balls to spin. When the pre-load on the crank is too high (causing a lateral load), this effectively removes the clearance in the bearings, causing the balls to skid rather than spin, causing accelerated wear and possibly creaks.
Basically, roller bearings don't operate well with a high lateral load. Also the clearance is there to allow for minor alignment issues.

amrushton

First.Aspect said:

But he's a blow-hard and I'm just too petty to see past that.

There is what you see on Youtube in his shock mode or his engineering skills that have made his BB the go to ones. Dont confuse one with the other

First.Aspect

amrushton said:

First.Aspect said:

But he's a blow-hard and I'm just too petty to see past that.

There is what you see on Youtube in his shock mode or his engineering skills that have made his BB the go to ones. Dont confuse one with the other

I don't. It's just that I have too much of an allergic reaction to his channel.

slowmart

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First.Aspect said:

amrushton said:

First.Aspect said:

But he's a blow-hard and I'm just too petty to see past that.

There is what you see on Youtube in his shock mode or his engineering skills that have made his BB the go to ones. Dont confuse one with the other

I don't. It's just that I have too much of an allergic reaction to his channel.

Another Hambini customer here, top quality product, fit, forget and ride in silence.

mazwmb

https://www.sigmasports.com/item/Wheels-Manufacturing/BB86-92-Outboard-ABEC-3-Bottom-Bracket-for-24mm-Shimano-Cranks/EM28?gclid=Cj0KCQjw6s2IBhCnARIsAP8RfAjJ-CCrnw69sUngO0viJJqpZc0vtR5PFOYtT6byq5iwYDYMA4-OdpQaAg6pEALw_wcB&gclsrc=aw.ds

I replaced my 386 Evo with a wheels mfg and all good 👍🏻

epr

Thanks everyone. I have realised that a traditional threaded BB screws into the frame, so the answer to my original question is obviously no. However, on the basis of the recommendations in a couple of the responses above I've now fitted a thread-through BB from Wheels Manufacturing; together with a bit of grease on the QR skewers to banish some residual clicking, I have now enjoyed my first creak-free ride in six months. Even giving it some welly on the climbs all I could hear was my knees. It's incredible what a difference it makes, so thanks again.

photonic69

mazwmb said:

https://www.sigmasports.com/item/Wheels-Manufacturing/BB86-92-Outboard-ABEC-3-Bottom-Bracket-for-24mm-Shimano-Cranks/EM28?gclid=Cj0KCQjw6s2IBhCnARIsAP8RfAjJ-CCrnw69sUngO0viJJqpZc0vtR5PFOYtT6byq5iwYDYMA4-OdpQaAg6pEALw_wcB&gclsrc=aw.ds

I replaced my 386 Evo with a wheels mfg and all good 👍🏻

Yup. Me too.

My 386 Evo press fit bearing were shockingly bad. Best thing I did to the bike.