Bottom Bracket Axle wobbling while cycling?

Asked by: Lori Montoya

Why is my bottom bracket wobbling?

Most of the time, the true cause is a loose chainring bolt—tighten them up and that’ll quiet most creaks. After you check the chainring bolts and if you still hear the noise, look at your pedals, crank bolts, seatpost, and seat.

How do you fix a wobbly bottom bracket?

Quote from video: Hello and welcome to Publix repair your byte tutorials in this tutorial we will be showing you how to tighten your bottom bracket first we need to turn the bike upside down as you can see my bottom

How do I know if my bottom bracket needs replacing?

To check if your BB needs replacing, drop the chain off of the smallest chainring and spin the cranks. If there’s a side-to-side wobble, or feeling of grittiness, it’s time for a new one.

How do you tighten a mountain bike bottom bracket?

Quote from video: Or you can use a vise script. And put the vice grip around this thing if you've got a vice grip that's big enough. You should be able to also just rotate this thing.

Why is my crankset wobbling?

As you put maximum torque on a pedal, a loose fit on your bearing allows the crank to force movement in the bearings outside the bearing race. They can then click back in as pressure is released. This matches up with having a “wobble” in your chain ring.

How tight should I tighten bottom bracket?

Quote from video: So it's not shaking. But not super tight the tighter you put it the harder it will be to crank.

How long should a bottom bracket last?

What we found was again the basic bottom bracket on your bike from the factory isn’t going to last longer than 500 miles. Wheels Mfg brackets lasted substantially longer BUT the mileage varied greatly with climate and contamination. I maintain my bottom brackets every 1000 miles on my own bikes.

Can you replace bottom bracket bearings?

bottom brackets is the ability to replace the bearings without degrading the cups, and in the case of our thread-together bottom brackets, you can replace your bearings while leaving the cups in the frame. We’ve even produced step-by-step videos to guide you through it!

Why is my bike crank creaking?

The most common cause of a squeaky crank is that the bolt is loose. Check for play in your cranks by pulling on one side and trying to wiggle it side to side. If there is play, check that your crank bolts are tight using a hex wrench—bolts should be hand-tight.

Does bottom bracket make a difference?

The major benefit to using a threaded bottom bracket is how much more secure the fitment is compared to a press fit system that is more likely to creek. It’s also easier to work on as a home mechanic as you only need a special wrench to remove/install it.

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

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 fix a wobbly bike crank?

Quote from video: And tap it and it is slowly but surely moving right now I'm adjusting my angle so that it's easy here for me so you can do that as long as you fix your bike.

Why does my bike feel wobbly?

Bicycles usually wobble either because of a loose bolt, improper adjustment, or improper spoke tension. Most of these problems can be fixed at home using a spanner, hex keys, or a spoke key depending on the type of wobble you experience.

How do you fix a loose crank?

Quote from video: Really make sure that you hold the pedal. And when you're tightening you want to get. This. On there as tight as you can to keep the crank garment flush with the bike.

How do you fix a crank arm wobble?

Quote from video: Really make sure that you hold the pedal. And when you're tightening you want to get. This. On there as tight as you can to keep the crank garment flush with the bike.

How long should a bottom bracket last?

What we found was again the basic bottom bracket on your bike from the factory isn’t going to last longer than 500 miles. Wheels Mfg brackets lasted substantially longer BUT the mileage varied greatly with climate and contamination. I maintain my bottom brackets every 1000 miles on my own bikes.

How do you fix a wobbly chain?

Quote from video: And you very gently bend it a little bit at a time and as you bend it every so often you want to check it against your caliper. Which should be set to the distance of the non bent arms.

Can you replace bottom bracket bearings?

bottom brackets is the ability to replace the bearings without degrading the cups, and in the case of our thread-together bottom brackets, you can replace your bearings while leaving the cups in the frame. We’ve even produced step-by-step videos to guide you through it!

Can you service Shimano bottom bracket?

Shimano don’t recommend that you service your BB bearings mainly because you stand a reasonable chance of damaging the seals taking the bearings in and out of the cups.

Should you grease bottom bracket threads?

With the threads now clean and sharp the next step is to prepare them with a layer of good quality grease. The grease will enable a smooth fit between the cups and the frame, the grease will also reduce the chance of corrosion developing between the materials in the bottom bracket shell and those in the cups.