105 R7000 pinch bolts

[Johnno260]

Hi I need to clean up or replace the 2 pinch bolts on my left hand crank, they’re pretty corroded so I wanted to wire brush them, worst case replace them.

I have found conflicted sizes, M5 x 19 and another site said M6 x 19

Also seen this M6 x 21

https://dassets.shimano.com/content/dam/global/cg1SHICCycling/final/ev/ev/EV-FC-R7000-4331A.pdf

Please can someone sanity check me lol

 

[Dogtrousers]

I have such a crank in a box in the garage. If I can remember I'll dig it out and take the pinch bolts out tonight.

 

[wafter]

Can you not pull one out and tickle it with a ruler?

 

[Dogtrousers]

Can you not pull one out and tickle it with a ruler?

Yeah. Come to think of it, that's all I was planning to do with my spare 105 crank.

 

[si_c]

I think they are M6x19, getting a longer replacement should be fine though. I replaced mine with some titanium ones from ebay. They were M6x20.

 

[Dogtrousers]

Here you go. A bolt from a Shimano 105 R7000 crank on 5mm squared paper. Make of it what you will

I included the crank as some kind of proof that it really is what I claim it is, and not just a random bolt that I've posted up as a prank.

I suppose I could have posted a picture of a random bolt next to a 105 crank. But I'm not that weird. Or at least, I claim not to be that weird, but the risk is yours. Perhaps I am.

 

[Velochris]

I'd be surprised if SJS were wrong. Scroll down and R7000 is on the list.

https://www.sjscycles.co.uk/chainse...m81301-clamp-bolt-washer-m6-x-21mm-y1gs21000/

 

[wafter]

Here you go. A bolt from a Shimano 105 R7000 crank on 5mm squared paper. Make of it what you will

View attachment 730053
I included the crank as some kind of proof that it really is what I claim it is, and not just a random bolt that I've posted up as a prank.

I suppose I could have posted a picture of a random bolt next to a 105 crank. But I'm not that weird. Or at least, I claim not to be that weird, but the risk is yours. Perhaps I am.

Seems legit.

 

[Johnno260]

Thanks everyone, I was at the office when I posted so couldn’t measure. Also I wanted the replacements in hand before I tried to clean them or replace as they look a real mess I was assuming they would come out damaged.