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Rubber dampers

Modern 961 Norton Commando Motorcycles

Re: Rubber dampers

Postby Britfan60 » Tue Apr 18, 2017 5:30 am

The factory sells the grommets for 5 pounds each. (about $6.25 US) Do they really think they would wear out one at a time rather than as a set?? Sure wish I knew where to get these state side. Another 30 bucks in shipping :roll:
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Re: Rubber dampers

Postby Britfan60 » Tue Apr 18, 2017 5:50 am

Ralphi. Do you have the measurements readily available?? This looks familiar. http://www.ebay.com/itm/EB279-2009-09-A ... 1909945400 I can get the dampers here state side if they are the same as the Aprilia. ($4.00 US) I did order them already from the factory. That would be a total of $20.00 instead of $60.00.

Make that $3.33 each.

https://www.af1racing.com/store/Scripts ... oduct=2455
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Re: Rubber dampers

Postby Raphi » Tue Apr 18, 2017 12:55 pm

I did already pay the double of 60 bucks here in Switzerland :-(
I have the measurements somewhere, but have to search for them...
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Re: Rubber dampers

Postby Britfan60 » Tue Apr 18, 2017 1:14 pm

Sorry for the mistake. Raphi as in short for Raphael? If so, I think I've read some of your posts on another forum. I agree. :wink: Anyway, if the ones on the link are the same, since we do know Norton kind of buddies up with Aprilia, next time I pay $3.33 for the set. Just paid my 60. :(
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Re: Rubber dampers

Postby TonyA » Tue Apr 18, 2017 6:54 pm

From AF1 Racing , Part measures 16mm ID x 34mm OD x 28mm Width .. Measure yours and see if its the same .. I can tell you that my Norton Part number 6010049 cush drive rubbers for spoked rim hub measures 19mm ID , 32mm OD , 10.5mm width. So that is NOT the same part. I hope that Norton get this resolved , at least find a replacement that last 15,000 to 20,000 miles. If the driving stubs on the sprocket carrier were longer , with corresponding deeper cush rubbers it would help a lot ! I will upload a picture of mine when I replace them . A question for Kevin French. How long are these cush drive rubbers supposed to last ?

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Re: Rubber dampers

Postby Britfan60 » Wed Apr 19, 2017 5:31 am

Thank you for that, Tony. Well, that's that. Are yours shot too? I get the bike up there in speed, but I don't beat on it from a start. No wheelies and hole shots for me. I keep the synchros shifting smoothly. Can't understand where all this pressure is coming from. I don't think the factory is charging ridiculous prices, its the damned shipping. :?
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Re: Rubber dampers

Postby TonyA » Wed Apr 19, 2017 6:35 am

Hi Britfan , I can see rubber starting to fall out of them if that's any indication. And only 3778 miles . My suggestion on the shipping is to buy 2 or 3 whole sets , that will help cost average them. Next time I buy , it will be for a 10 -15 minimum. I keep reading about these talon hubs and how good they are. But they made their name in dirt bikes right ? I think the dampers are too narrow for a big engine like this with all this torque impulse. Maybe the material can upgraded ? What will Norton do I wonder ? At this rate I will be changing every year. Too much..

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Re: Rubber dampers

Postby wakeup » Wed Apr 19, 2017 10:34 pm

To cheer all you guys up, a long time ago, in the late 60s, I was told that circular cush drive rubbers like the ones used on the 961 do not work. Thats why the featherbed framed, and Commando full width rear hub has rectangular cush drive rubbers. Even allowing for the considerable improvements in plastics since then, maybe this still holds true? At a guess the hardness of the insert would be very critical.
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Re: Rubber dampers

Postby Britfan60 » Thu Apr 20, 2017 5:06 am

And that cheers us up how?? :? :?
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Re: Rubber dampers

Postby TonyA » Thu Apr 20, 2017 3:18 pm

Hello Britfan , Have you tried the dealer ? See what their mark up is , it may be lower ? At least you have managed twice the mileage I got out of mine.

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Re: Rubber dampers

Postby Britfan60 » Thu Apr 20, 2017 6:05 pm

My dealer? They don't even sell Nortons anymore. I seriously doubt they are going to shelf parts. After the rocky start, they pretty much bailed. I've been getting very good parts service from the factory.
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Re: Rubber dampers

Postby TonyA » Fri Apr 21, 2017 4:43 am

Yes I agree , Parts ordered from the Norton Factory have been great. If you get multiple items when you order then shipping is not bad. I ordered a Banjo-less rocker cover last month. I will be installing that soon. I will couple this with a cam chain and valve adjustment check.

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Re: Rubber dampers

Postby Britfan60 » Fri Apr 21, 2017 3:53 pm

Wow. I received the grommets already. The service is excellent. Still, it bothers me that my package weighs about .12kg and I'm paying postage on what says 1.5 kg. That and a plain rubber grommet shouldn't cost more than a buck each, not 30.00,. Freaking specialty items. Between the bikes and the boat, I'll be broke with a smile. :roll: Ok. Bitching session over. Time to get this fixed.
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Re: Rubber dampers

Postby Fast Eddie » Sat Apr 22, 2017 12:22 am

Just about every bike in the world has some kind of shock absorber system somewhere in the drive train. Many using similar to Norton. Many with far more power and torque than the Norton and many used far harder and less sympathetically than you guys do with your P and J.

So, I gotta ask the obvious:

So why is this happening?

And why haven't' Norton fixed it?
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Re: Rubber dampers

Postby Britfan60 » Sat Apr 22, 2017 4:01 am

Fast Eddie wrote:Just about every bike in the world has some kind of shock absorber system somewhere in the drive train. Many using similar to Norton. Many with far more power and torque than the Norton and many used far harder and less sympathetically than you guys do with your P and J.

So, I gotta ask the obvious:

So why is this happening?

And why haven't' Norton fixed it?


Maybe they have. My bikes 4 years old.
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