can you helicoil BMX crank/pedal threads?

You probably could, but I would look into replacing the side that is stripped, or contact Stolen and see if they can do anything for you.

You can "do" anything but I wouldn't trust it

generally speaking, there isn't enough material in steel cranks to drill it out big enough to helicoil. I would start saving for new cranks.

In the meantime, you could use either some red Loctite, or there is some shit called Belzona. It's a really strong epoxy, kinda like JB weld, but stronger. The Navy uses it to make temporary repairs to leaking pipes. You could try that.

tecnic1 wrote:

generally speaking, there isn't enough material in steel cranks to drill it out big enough to helicoil. I would start saving ...more

tecnic1 wrote:

generally speaking, there isn't enough material in steel cranks to drill it out big enough to helicoil. I would start saving for new cranks.

In the meantime, you could use either some red Loctite, or there is some shit called Belzona. It's a really strong epoxy, kinda like JB weld, but stronger. The Navy uses it to make temporary repairs to leaking pipes. You could try that.

...more

this, with todays super hollow spindles, I doubt theyd be a huge amount of material left after drilling larger and tapping for a helicoil. Theoretically it'll work, but how well depends on how hollowed out your spindle is.

Failing all of the above, you COULD try contacting a welder who can do Chromoly, see if they can fill in on the pedal boss, and then drill it out and have a shop try to re-tap it?

Honestly I would just save for some cranks, maybe hit up the for sale section or homies to see if anyone can loan you a set for a while until you can replace them.

dave lawrence wrote:

Failing all of the above, you COULD try contacting a welder who can do Chromoly, see if they can fill in on the pedal boss, ...more

dave lawrence wrote:

Failing all of the above, you COULD try contacting a welder who can do Chromoly, see if they can fill in on the pedal boss, and then drill it out and have a shop try to re-tap it?

Honestly I would just save for some cranks, maybe hit up the for sale section or homies to see if anyone can loan you a set for a while until you can replace them.

...more

This sounds like an awesome idea, but so much to go through in finding a welder and then the cost of the work, it sounds like it may just be easier to buy new crank arms lol

I have a race crank that is helicoiled. So i'm sure it can work for you. Just don't expect to change pedals without a new coil to use.

dave lawrence wrote:

Failing all of the above, you COULD try contacting a welder who can do Chromoly, see if they can fill in on the pedal boss, ...more

dave lawrence wrote:

Failing all of the above, you COULD try contacting a welder who can do Chromoly, see if they can fill in on the pedal boss, and then drill it out and have a shop try to re-tap it?

Honestly I would just save for some cranks, maybe hit up the for sale section or homies to see if anyone can loan you a set for a while until you can replace them.

...more

solarsoundwave87 wrote:

This sounds like an awesome idea, but so much to go through in finding a welder and then the cost of the work, it sounds like ...more

solarsoundwave87 wrote:

This sounds like an awesome idea, but so much to go through in finding a welder and then the cost of the work, it sounds like it may just be easier to buy new crank arms lol

...more

Yea, it likely would be a fair amount of cost involved, you would be better off replacing the arm.

Was it the one connected to the spindle or the one by itself?