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Press fit BB remova...
 

Press fit BB removal

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[#13053893]

Well after a mere 18 months my PF equipped Procaliber has started clunking. I've never had to deal with one of these hateful things before always having had proper BBs.

Is there anyway of getting these in and out without buying yet more tools?ย ย  I have a headset press, can that be adapted?

Whats the cheapest way of doing this?

BTW will this work to remove the cups?

https://www.wiggle.com/p/lifeline-headset-cup-remover


 
Posted : 24/11/2023 10:26 am
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Whack each side out with a blunt screwdriver.ย 


 
Posted : 24/11/2023 10:32 am
footflaps and footflaps reacted
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What nickc said. Use your preferred headset removal screwdriver. Mine's an old Roebuck, blunted after years of use.


 
Posted : 24/11/2023 10:36 am
footflaps and footflaps reacted
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why is it hateful if it's worked fine for 18 months ?


 
Posted : 24/11/2023 10:38 am
nickc and nickc reacted
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Would be my question as well @weeksy, I've always found press fit to be equallly good/bad/indifferent to screw-in types, but IME it's not worth the arguments


 
Posted : 24/11/2023 10:40 am
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The one coming out is apparently an MT500 (Deore) 92mm x 24mm spindle. I presume that its worth putting a better one in?ย  Is the best I can get an XT?

Its for an SLX crank

EDIT: Hateful because somehow pressfit feels cheap and I don't have the right tools. Plus 18 months of fairly light use in dry conditions isn't great really IME compared to various BBs I've had over the last 40 years of riding bikes.


 
Posted : 24/11/2023 10:41 am
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Headset cup remover is overkill because a pf bb is not metal on metal, is easy to knock out, and the plastic cups are going in the bin usually. Might also not be the correct width. Screwdriver is good - or any cylindrical object - doesn't take great force.

Then press the new one in with your headset press.


 
Posted : 24/11/2023 10:48 am
winston, nickc, nickc and 1 people reacted
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No, do not spend any more money on PF than the standard Shimano PF92 model. It's cheap looking because its just a set of bearings in deformable plastic surround as opposed to some bearings pressed (there's that word again) into a metal carrier that you then screw into your frame.

I would be willing to bet @tjagain Greggs pie that 18 months if what most folks can get out of any BB PF or otherwise.


 
Posted : 24/11/2023 10:49 am
bigkit and bigkit reacted
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Great thanks all. Well we can agree to differ - I guess I would just prefer a screw in type but there were precious few options when I bought the bike and I also well note that we've had pressfit headsets for ever!

Cheers

Rob


 
Posted : 24/11/2023 10:54 am
nickc and nickc reacted
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I'd prefer screw in type too, but my last 3 bikes have had PFs, i've had to change 1.... It wasn't too bad.. can't say it took any longer to swap than a screw in.


 
Posted : 24/11/2023 10:59 am
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I replaced mine with an Airbike that cost a tenner. For all the bad press that PF BBs have I've used the same tools to remove and fit all the ones I've had without having to think about which way the thread goes or why shimano road and MTB BBs have inexplicably different cups.


 
Posted : 24/11/2023 12:13 pm
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I've got the park tools version of that. Works well so I would imagine that one should. Definitely more confidence inspiring than the old copper pipe or screwdriver method.


 
Posted : 24/11/2023 12:40 pm
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Worksmanufacturing threadfit BB FTW (Or Token Ninja potentially)


 
Posted : 24/11/2023 5:02 pm
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I use the rear axle out of a 1999 Suzuki SV650. The perfect length, the perfect heft, feels good in the hand, not too big not too small, you can use either end depending on how it's contacting the BB and you're not likely to hit yourself in the fingers with the hammer. Other motorbike axles are available.

(Seriously it's just a "tonk it out" job, flathead screwdriver isn't quite ideal as even the big ones are a bit small and pointy (though that gigantic old one that you found in your dad's toolbox that doesn't fit any screws made in the last hundred years and is all rounded off anyway but is really good at opening paint cans is generally a good choice) but something along those lines. Socket extensions work well. Bits of small-ish metal pipe, threaded rod, whatevs. But every time you find a good "knock it out" tool, keep it)


 
Posted : 24/11/2023 7:10 pm
fruitbat and fruitbat reacted