Pedal axle/thread size?

i've got truavativ touro cranks, and i want to swap my pedals. what size do they take? anyone know/are they a standard size? hopefully they are 9/16. a little knowledge please. kthxbai

all 3 piece take 9/16 pedal spindle

all 3 piece take 9/16 pedal spindle

Not true, but hey, why complicate things?

thought they might be, just wanted to make sure before buying shiny stuff from the interweb. cheers

Why two threads....?

Why two threads....?

One for the right pedal, the other for the left.

sorry bout the double threadage, my internet was being shit, and i didn't think it posted the first time.

Bump...

I've got some 1960s Stronglight 49D 165mm cranks that are marked "9/16-20", which I suppose must mean they are threaded for standard 9/16" x 20tpi pedals, but when I've tried screwing in the pedal (which is 9/16" x 20tpi threaded), it goes in but it seems VERY stiff, almost like the threading is mismatched. The threads look clean and I've greased the pedal threads but I'm worried I might be doing some damage.

Any ideas? Is it possible to check the crank threads? Is this simply because they're old cranks?

Cheers.

how sure are you that the pedals you are putting in 9/16ths? could the cranks have been re threaded? have you tried another set of pedals to eliminate the pedals from the problem?

how sure are you that the pedals you are putting in 9/16ths? could the cranks have been re threaded? have you tried another set of pedals to eliminate the pedals from the problem?

Thanks - all good advice. I was sure of the pedals but unsure of the crank threading, and had the same issue with two sets of pedals.

But...it's all sorted out now. I gave the threads on the pedals and the cranks a really really good clean, which improved matters. It was still a very tight fit, but the threading was a correct match. No little silver worms.