How can I remove the stripped plastic cups of a bottom bracket?

Asked by: Gary Cooper

With a soldering iron use the thinnest tip you have to melt and pry away as much of the plastic as possible. With a hammer, punch the spindle towards the left and see if something moves, if not, remove more material. If the bracket moves out to the left but then gets stuck, punch it out the right.

How do you remove a seized cup bottom bracket?

Quote from video: There's only really one way of increasing the force that you can apply and that quite simply is with a bigger hammer. Now a bigger hammer like this is going to really increase the force.

How do you open a square tapered bottom bracket?

Quote from video: This is just a square tapered type so it has all these notches on it and then it was it just fits in here and then you just you know you twist and it comes off it's that easy.

How do you remove a square taper bottom bracket without tools?

Even if you don’t have a bottom bracket tool, you can still remove the bottom bracket from your bicycle’s frame. First, remove the crank arms from the bottom bracket and use a wrench to loosen the bolts that hold it in place. Finally, use your hands to pry the bottom bracket out of the frame.

How do you remove BB cup and cone?

Quote from video: The left hand cup is the adjustable. Cup. Remove the left cup and collect the balls from the left side they may be loose or in a clip. Pull out the axle.

How do you remove tapered square?

Quote from video: You usually just need one good push. And it should break it loose from the bicycle. From here the crank should just slide right off.

Are all square taper bottom brackets the same?

Bottom Brackets come in a variety of sizes, types and tapers, each manufacturer clearly specifies which Bottom Bracket type would be compatible with their Chainsets and details are included in the product descriptions on our website so this makes choosing the right BB easy.

What tool do I need to remove bottom bracket?

Cup and Cone Bottom Bracket Tools & BB Removal



Whether bearings are contained in cups against which you tighten the cone, or housed in an external cup which screws in, holding bearings against an internal cone, a screwdriver and hammer may be the only tools you need.

How do you remove the bottom bracket on a bike without a puller?

Quote from video: And once you got it started you can just loosen it off with your fingers. And just keep loosening this off until you get to the end of the threads. You could take it all the way off the threads.

How do I know what bottom bracket I have?

Quote from video: Found at any point here by hitting the information icon in the corner. The bottom bracket is the bearing system between your bicycles cranks.

How do you remove a square taper without a crank puller?

Quote from video: So we have to do put your bike up against the wall or in a stand like this. And then just knock the bit of wood with a hammer until she comes off now.

What can I use instead of a crank puller?

Quote from video: Now another suggestion I see often is to use a ball joint separator.

Are square taper bottom brackets good?

Quote from video: Похожие запросы

How do you change a square taper crank?

Quote from video: So just loosen this take this off like that then using a crank remover tool here. I want to do is just go ahead and thread this in. And hopefully these aren't stripped.

Are square taper bottom brackets good?

Sealed-bearing square taper bottom brackets are still the most reliable design out there. They have the best seals from mud/grit.

How do you install square taper?

Quote from video: It's an 8 millimeter bolt. So I need an 8 millimeter allen key hex wrench. So let's go ahead and just screw it on its clockwise on both sides. So it's clockwise here to the right.

Which is better square taper or hollowtech?

Hollowtech is a bit stiffer and easier to take apart, but square taper will last much longer.

What is the advantage of hollowtech?

Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design.

What does Square Taper mean?

Traditional cotterless cranksets use a tapered square spindle (axle) end. The sides of the end taper at a 2 degree angle compared to the centerline, 4 degrees compared to each other. Square, tapered end of cotterless crank spindle with fixing bolt and washer.