Norton Commando
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Norton 880 long-term project
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Rob94010



Joined: 27 Mar 2008
Posts: 2
Location: Burlingame, CA 94010

PostPosted: Sun Nov 09, 2008 12:28 pm    Post subject: Beautiful Piece of Work Reply with quote

That is a beautiful piece of work. Was that the design for the Dreer Nortons?
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Sun Nov 09, 2008 4:24 pm    Post subject: Reply with quote

One of the pre-production prototype bikes had the monoshock rear end, the one in the photos I posted earlier; those photos went around the web early on, before the actual running test bikes started being shown with standard dual shocks.
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Mon Nov 10, 2008 10:53 am    Post subject: Reply with quote

Kenny recently sent me a couple more pix of the 951 prototype, including this rare photo of the Left side, I don't think this one was ever published-



Picture upside-down forks and classic wire spoke wheels...
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Tue Nov 11, 2008 7:21 pm    Post subject: Reply with quote

Preliminary mockup; please consider the fact that I don't yet have the shock mountings fabricated, don't have the proper adjustable link
on the shock pivot arm, and don't have the rear axle adjuster blocks that slide into the box section swingarm.



Front tire will be a bit taller profile on wire spoke wheel, rear tire will be a bit shorter profile on matching wheel with rear disc.
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Cookie



Joined: 05 Oct 2008
Posts: 164

PostPosted: Tue Nov 11, 2008 10:09 pm    Post subject: Reply with quote

What a ton of work but it will be beautiful.
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Ron L



Joined: 27 Feb 2004
Posts: 1147
Location: Ohio

PostPosted: Wed Nov 12, 2008 4:25 am    Post subject: Reply with quote

Paul,
What are you going to use for a front hub?
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Wed Nov 12, 2008 7:05 am    Post subject: Reply with quote

I have a UJM wire spoke, dual disc, front wheel of unknown origin.

However, I'm searching for a better match as this one will need shimming on the discs to align with the calipers on the upside-down forks, and the discs are solid, not drilled and not floating. I'd really like full floaters.
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Ron L



Joined: 27 Feb 2004
Posts: 1147
Location: Ohio

PostPosted: Wed Nov 12, 2008 7:30 am    Post subject: Reply with quote

A buddy is working with an early GoldWing hub that accepts some Kawasaki semi-floating rotors. You might check out something like that.
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Cookie



Joined: 05 Oct 2008
Posts: 164

PostPosted: Wed Nov 12, 2008 8:45 am    Post subject: Reply with quote

75-77 Goldwings do have strong hubs and are quite cheap. Seems like a friend told me they might also be the same as 750 Hondas but I'm not sure about that.
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Mon Dec 01, 2008 7:21 am    Post subject: Who has a nice spare crank? Reply with quote

I'd like to have a really nice crank for this project, perhaps with a billet flywheel. Something that is KNOWN to be trusty, maybe already magnafluxed and balanced, etc.

What have now is a stock 750 c rank which SHOULD be okay in non-racing application, but i'd like to go a step or two better.

Anyone got one gathering dust?
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Mon Dec 08, 2008 9:17 pm    Post subject: Reply with quote

Got a much nicer shock and worked out the required geometry to fabricate the upper shock mounting on the frame. It will involve two plates hung underneath the main tube, just behind the web plate aft of the carbs. I'll also add a bit of triangulation on the front side of the web to gusset the stressed section.



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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Sun Dec 14, 2008 7:09 am    Post subject: Reply with quote

Perfect fit on the mounting plates, just need study the optimal end length for maximum adjustability in the intermediate link, then weld them up.



Chain adjustment axle blocks are ALMOST done. I didn't notice he drilled the axle holes too small!

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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Mon Dec 15, 2008 12:19 pm    Post subject: Reply with quote

Monoshock mount fabrication & installation complete. Same center of axle to center of shock top mount spacing as standard,
with the axle & adjustable link at mid position.



The powdercoating held up quite well to the heat from welding (lowest amperage setting to maintain good penetration and strong bead).
Some touchup paint will hide the scars and there you have it.
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Mon Dec 15, 2008 4:13 pm    Post subject: Reply with quote

Here's the rear brake anchor point, not as clean but I'll dress it up.



Now do design a new axle, stub axle and spacers, then have the machinist do 'em up.
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grandpaul



Joined: 15 Jan 2008
Posts: 652
Location: Laredo (south) Texas

PostPosted: Wed Dec 17, 2008 8:16 am    Post subject: Reply with quote

Play money has pretty much dried up, but there are actually lots of little things I can do over the winter that won't cost much at all; here's a short list that'll keep me busy for a while:

-clean & prep all the engine parts I already have
-touchup paint the frame & swingarm where I've welded
-re-paint the cylinders
-re-lace the OEM rear hub onto a clean 18" aluminum rim that I have
-complete the mods & fit up the yokes to get proper range of motion
-modify & fit up the standard bar risers
-mount all the foot & hand controls
-fabricate some custom instrument mounts (maybe integrate them with the handlebar mounts?)
-fabricate a battery mounting setup that hides well
-strip down a good wiring harness, modify it for my use, then re-wrap it to look nice
-carefully dress up (Dremel cut) the OEM right crankcase half to match the custom built left half
-carefully recess the backside of the OEM oil tank to clear the monoshock (only need 1/4" or so)
-fabricate a custom headlight mount setup (has to mount to the large diameter USD forks)
-pull the ARD mini-magneto from the Combat & replace with a Sparx setup < that one will cost a few $$

PLENTY to stay busy till the funds get flowing again.
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The Unapproachable Norton Commando

At the end of 1967 the Norton Commando was announced.

The Norton Commando was greeted with a certain amount of scepticism because on first sight the commando appeared to comprise of the old Norton Dominator twin cylinder engine mounted at an inclined angle in a set of new cylinder parts.

It was not realized that the new Norton Commando Isolastic method of engine suspension damped out all engine vibration and produced a machine which had uncanny smoothness for a vertical twin. In due course the critics were silenced and the Norton Commando had the distinction of being regarded as the first of todays so called superbikes. There can be little doubt that the original design concept of the Norton Commando has proved correct, since comparatively few modifications of any real consequence have been made since production commenced during 1968.

Now nearly 40 years later Norton Commando riders like us are a breed of our own, and as far as we are concerned its still more fun to go for a blat on the old Norton Commando, and fast. As a Norton Commando owner and enthusiast, my goal here is to promote and give credit to those who keep the Norton name going.

It is more deserving to give credit to the Commando itself, for after all these years it continues to be respected. The original Commando designers like John Favill are those who deserve the credit for developing this incredible motorcycle.

The Norton Commando Roadster and Interstate of the late seventies, never died. Although the Norton Villiers factory dispersed the tradition lived on. Today Kenny Dreer in the USA is developing the new 952 CC Norton. What a great looking bike this is, and its engineering is still based on the original layout. It will be interesting to see how the new 952CC Norton does in todays tough motorcycle market. One thing is for sure, I would own one if I could afford it.