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Buell Forum » 1125R Superbike Board » Archive through March 15, 2012 » Rear axle pinch bolt size? « Previous Next »

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Ponti1
Posted on Saturday, March 03, 2012 - 05:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Went to pull my wheel just now so I could get my new PR3 mounted, ans came to find that I am missing my pinch bolt. I am certain it was there just a few hundred miles ago, so no idea what happened to it...

Anyway, does anyone know what size/grade bolt this is, so I can seek out a replacement? I noted in my service manual that it is a 10mm hex head, but that's all the info that I have.
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Juniorkirk
Posted on Saturday, March 03, 2012 - 06:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

M8 x 68 Hex

Looked in the parts book and that looks like the only one it would be.

CA0041.1AM
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Zac4mac
Posted on Saturday, March 03, 2012 - 06:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Looking at my 08 parts book.
Part no. 2 pp76-77.
I have(at some time ??) added a scribble by the inset that says "pinch 12x50".
A12050.2CCVB isn't listed in back with other fasteners.

CA0041.1AM shows up on the Cranckcase page22-23 as the pinch bolt for the swingarm pivot.

Looks like the numbers and descriptions got switched...

I just went out and checked Loretta's.

10mm allen
M12-0.6x50

Don't forget the blue loctite.

Z
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General_tso
Posted on Saturday, March 03, 2012 - 06:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ponti1,

PM me your mailing address and I'll send you one. I experienced the same situation and have 4 spare bolts. It's 5/8-13 if I remember correctly
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Zac4mac
Posted on Saturday, March 03, 2012 - 06:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Wow GenTso that's weird.
Now I'm not sure of the size, I ASSUMED it would be metric.

BRB
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General_tso
Posted on Saturday, March 03, 2012 - 06:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Have bolt in hand. It's 7/16-14.
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Zac4mac
Posted on Saturday, March 03, 2012 - 06:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

M12-.6x50

Bolt measures .466"
3/8 allen is sloppy, 10mm is proper fit.
Checked with my only pitch-gage, not 13, 14 or 16 per inch.
6 peaks in 10mm = .6/mm

Zack
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General_tso
Posted on Saturday, March 03, 2012 - 06:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Although I suppose it could be M12-.6. I don't have a metric thread gauge handy.
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Zac4mac
Posted on Saturday, March 03, 2012 - 07:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I must be thinking backwards on the pitch number.
Looks like a metric coarse is 12-1.75...

Z
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General_tso
Posted on Saturday, March 03, 2012 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ponti1..Zac4Mac is correct. I do have a spare bolt and would be more than happy to mail it to you.
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Kruizen
Posted on Saturday, March 03, 2012 - 09:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I just bought one from hd and it is:

M12 1.75thread by 50mm socket head

$8.00 from Harley

(Message edited by Kruizen on March 03, 2012)

(Message edited by Kruizen on March 03, 2012)
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Duphuckincati
Posted on Saturday, March 03, 2012 - 09:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Clear as mud!
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Ponti1
Posted on Sunday, March 04, 2012 - 10:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks guys for all the input! M12x1.75x50 it is!

General_tso,
Looks like I can get a 10 pack shipped to me for $10, so I'll save you the trouble. I am the type to like a surplus around the garage anyway. : )
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Ratbuell
Posted on Sunday, March 04, 2012 - 09:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Blue loctite on install.

After install, bright touchup paint at one spot on the bolt head and an adjacent spot on the swingarm. I do this on all my critical fasteners - axles. Caliper mounts. Fork tube pinch bolts. Axle pinch bolts. Clutch cover bolts. Oil filter. Handlebar clamp bolts. Triple tree / stem bolt. Shifter bolts. Soon as I torque it...I paint it. Makes pre-ride checks go super-quick...and COMPLETE.

And I have yet to lose a bolt.

If the paint don't line up...I re-torque, and re-paint.

Although, I need to find a new bright color. The molten orange I've had since I bought my orange 99M2 new...froze. Bummer. White works, but doesn't show through the mud and muck on the Ulysses nearly as well ; )
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Dannybuell
Posted on Monday, March 05, 2012 - 09:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ratbuell ~ "After install, bright touchup paint ...." Excellent advice!!
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Zac4mac
Posted on Monday, March 05, 2012 - 10:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When I worked on radios, we used Glyptol - fancy fingernail polish - to cap adjusters.

Great idea Joe.

Z
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Cycledoc59
Posted on Monday, March 05, 2012 - 08:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I bought 2 at the local hardware last
week for about $1.20 each, one for a customer
bike, one for spare. Since they go in from the bottom,
out of sight, I expect they are loosened for tire changes,
not retightned, and they fall out....
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Kruizen
Posted on Wednesday, March 07, 2012 - 08:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Man I wish I could have found one at a local hardware store. Looked at 6-7 different stores and no one had anything even close to the correct size.
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Jdugger
Posted on Wednesday, March 07, 2012 - 09:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The rear axle pinch bolt is one of the few things about this bike I feel was just bad decision.

The bolt could have just as easily been in a recessed location from the top or even rear of the swing arm, and access to it, safety wiring it, etc, would have been much easier.

It's a pain in the balls to wire that thing, trying to thread through it, around the rear stand, etc.
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Jdugger
Posted on Wednesday, March 07, 2012 - 09:22 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Less than $8 for a 10-pack.

http://www.mcmaster.com/#91290A626
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