Ducati Monster Forum

Moto Board => Tech => Topic started by: muskrat on December 08, 2012, 12:58:15 PM

Title: what size washer?
Post by: muskrat on December 08, 2012, 12:58:15 PM
I think it's a 25mm but please let me know if I 'm wrong and who might sell these.  It goes to a 2006 S4R.
Thanks
(http://i433.photobucket.com/albums/qq53/montey2005/photo-9.jpg)
Title: Re: what size washer?
Post by: He Man on December 08, 2012, 01:02:19 PM
I never had a washer on mine. but yea thats a 25mm axle.
Title: Re: what size washer?
Post by: ducpainter on December 08, 2012, 01:25:34 PM
If it's an aluminum nut it uses a washer. Steel nut does not.
Title: Re: what size washer?
Post by: Speeddog on December 08, 2012, 01:49:38 PM
It's 25mm ID.
The nut OD is 33.5mm, and the counterbore in the fork is not much bigger.

Part # 85211811A

~$2 at a dealer.
I suspect you'd have a hell of a time finding one somewhere else.



Title: Re: what size washer?
Post by: ducpainter on December 08, 2012, 02:08:52 PM
Quote from: Speeddog on December 08, 2012, 01:49:38 PM
It's 25mm ID.
The nut OD is 33.5mm, and the counterbore in the fork is not much bigger.

Part # 85211811A

~$2 at a dealer.
I suspect you'd have a hell of a time finding one somewhere else.




I checked for the '06 S4R and it doesn't list a washer in the pdf.

Do you use one anyway?
Title: Re: what size washer?
Post by: muskrat on December 08, 2012, 02:11:54 PM
well it's been two months since I took the wheel off and then put it back on.  Been down without the ability to ride so I just now got around to putting it on and I swore there was a washer but if it can run without then I'll do just that.

Thanks
Title: Re: what size washer?
Post by: ducpainter on December 08, 2012, 02:32:17 PM
Doesn't the nut have a rounded contact surface?

If it's a steel nut I don't believe you need a washer.

I could be thinking of something else. :-\
Title: Re: what size washer?
Post by: Howie on December 08, 2012, 03:32:44 PM
I will look and see if I have one tomorrow.  If I do it does not require a washer.  This is not an off the shelf fastener.
Title: Re: what size washer?
Post by: Speeddog on December 08, 2012, 03:54:06 PM
Quote from: ducpainter on December 08, 2012, 02:08:52 PM
I checked for the '06 S4R and it doesn't list a washer in the pdf.

Do you use one anyway?

As you said, the aluminum nut needs a washer.

I've only seen aluminum nuts on SBKs and S4Rs (with the Ohlins forks).
That part number I got was from an '01 996.

The nuts for the 25mm axles have a flat contact surface on the back side, so if it's a steel nut, then no washer.
Title: Re: what size washer?
Post by: ducpainter on December 08, 2012, 04:16:53 PM
I was testing the old memory. ;D