m952 crank bolts and washer

jgjones095 · Feb 8, 2016

Ok i have a m952 crank and removed the self extracting bolt.
On cleaning them a thin metal.washer came out of one crank arm.
I don't have a photo of it but on checking the other side there didn't seem to be one.

Should there be one either side and where do they fit?

What function do they perform?
Are they required as I only have 1.

jgjones095 · Feb 23, 2016

Ok here is an image of what I mean.

(You can see the washer within the rh crank (with rings) but not in the lh one)

Can I use aftermarket bolts to hold the crank on?

If so what type is recommended

FluffyChicken · Feb 23, 2016

Re:

Any octalink bolt will work.

The washer sets on top of the bolt head and under the cap iirc. It lets the bolt push against the cap and not try to turn it when extracting.

They are not needed to keep the crank on, just helps a bit when using the self extracting bit

The xtr bolts are a nice lightweight aluminium bolt. Is the Allen key socket bit damaged? If not just use them.

jgjones095 · Feb 23, 2016

Re:

There are already plastic washers on top of each bolt that go between it and the threaded cap.
This washer appears to sit between the bolt and crank arm.
Should there be a washer there?

scant · Feb 23, 2016

Re: Re:

FluffyChicken":zvgg8ayq said:
Any octalink bolt will work./quote]
also ISIS bolts are the same size

FluffyChicken":zvgg8ayq said:

The xtr bolts are a nice lightweight aluminium bolt. Is the Allen key socket bit damaged? If not just use them.

Click to expand...

All the sets of M950series XTR cranksets I've had used had steel bolts as standard. I've got a few sets of alu bolts, if anyone needs any...

FluffyChicken · Feb 24, 2016

Re:

Yes there should be the washer under the bolt as well for a similar reason.
Didn't see the pictures the first time, no idea why.

See
http://www.bikepartsplace.com/discount/ ... -17l-9802/

Edit and
http://www.bikepartsplace.com/images/med/31553599.jpg

jgjones095 · Feb 25, 2016

Shame that site doesn't work.

FluffyChicken · Feb 26, 2016

jgjones095 · Feb 27, 2016

Re:

Try adding the part part to the basket then going to checkout.

Nothing gets added to the basket

FluffyChicken · Feb 27, 2016

Re:

Just get some different ones
or fit without a washer or look for another one.

It was just a picture reference. Could try your local Shimano dealer/online seller with the part code.

m952 crank bolts and washer

jgjones095

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