Front Disc Hubs

madass140 · Sep 24, 2014

Nothing to exciting here, had some leftover billet from machining a batch of my Norton Twin Disc hubs so ran off
a batch of standard Norton Disc hubs. Rather than retain the felt seal arrangement ( I use sealed bearings) I redesigned the left side threaded retaining ring and dustcover/spacer to accommodate a seal.
On the right side the seal presses into the standard bearing pocket and with a new spacer jobs done,

kerinorton · Sep 25, 2014

You have made a nice job of those. Good to see you are using modern ideas with the seals etc.
Dereck

Nater_Potater · Sep 25, 2014

Great. Just great. Now I have something else to spend my measly paycheck on.

Seriously, very nicely done, and also glad to see you took modern seal technology into account. What rims did you use?

Nathan

madass140 · Sep 25, 2014

I had rims made a few years ago for the disc front, they have the normal spoke configuration not the "spoke on one side of the hub goes to the spoke hole on the opposite side of the rim" but with the big offset, not fun to lace up but I;ve done a lot over the past few years. I'll lace all these hubs up with the new seal conversion and include the wheels in my single disc kits along side the normal single 320mm 6 piston caliper kits.
maybe supply a rear rim and spoke set as well, for a matching set of wheels.

cjandme · Sep 27, 2014

madass140 said:
I had rims made a few years ago for the disc front, they have the normal spoke configuration not the "spoke on one side of the hub goes to the spoke hole on the opposite side of the rim" but with the big offset, not fun to lace up but I;ve done a lot over the past few years. I'll lace all these hubs up with the new seal conversion and include the wheels in my single disc kits along side the normal single 320mm 6 piston caliper kits.
maybe supply a rear rim and spoke set as well, for a matching set of wheels.

( madass 140 ,you rock)

acotrel · Sep 28, 2014

Emma Chissit ?

madass140 · Sep 28, 2014

never met Emma but have met a couple of darlings here who be happy to say their name was if........

davamb · Sep 28, 2014

More nice work there Madass.
For those not in the know "Emma Chisit" is Strine (a mostly moribund dialect unfortunately) for "how much is it".

Nater_Potater · Sep 28, 2014

davamb said:
More nice work there Madass.
For those not in the know "Emma Chisit" is Strine (a mostly moribund dialect unfortunately) for "how much is it".

If anyone can understand this, it'll be Hobot: "Jeetalredy?" "Yawn Too?" Search "Jeff Foxworthy" for assistance...

Al Terego

kerinorton · Sep 28, 2014

davamb said:
More nice work there Madass.
For those not in the know "Emma Chisit" is Strine (a mostly moribund dialect unfortunately) for "how much is it".

I'm pissing myself laughing now.
Dereck
ps. Emma chissit

Deets55 · Sep 29, 2014

Nate,
Good one!
Being a city boy from an all Italian neighborhood we ask "Jeetyet"
Pete

SteveA · Sep 30, 2014

You may think Emma Chissit is 'Strine......but its a pretty common phrase in and around Lunnun...

Madass.....

I may have missed this part being available before , but I am interested in a twin disc hub for use in a wheel that will go in a set of Maxton forks I have...

Emma Chissit delivered to UK? bare or with bearings/seals

I have a 40 hole rim already, and a good local wheel buider, wheel spindle is 17mm

Has to be non floating disks due to race rules.....so can't go there

madass140 · Sep 30, 2014

A tough one for me to answer, I dont have Maxton forks to set up my hubs, so I'm in the dark there.
My twin disc hub,rotors, and calipers will no doubt not fit your forks, they are designed to fit Norton 7-3/8" centers
with my fork sliders. my twin disc hubs use the 17mm Norton axle, and the spokes are all "inner spokes " meaning they are all fitted from the center to give caliper clearance. similar to XL/FX HD front twin disc hubs.

SteveA · Sep 30, 2014

madass140 said:
A tough one for me to answer, I dont have Maxton forks to set up my hubs, so I'm in the dark there.
My twin disc hub,rotors, and calipers will no doubt not fit your forks, they are designed to fit Norton 7-3/8" centers
with my fork sliders. my twin disc hubs use the 17mm Norton axle, and the spokes are all "inner spokes " meaning they are all fitted from the center to give caliper clearance. similar to XL/FX HD front twin disc hubs.

Not as difficult as you think really, my yokes are just a 35mm version of alloy CNC yokes that would fit a Norton.

The Maxton fork legs use a fabricated bolt on bracket for caliper mounting, you make your own to suit rotor dimensions.

A Norvil twin disc hub will work in this application, probably as will a Triumph 4 bolt twin disc hub. In both instances It would be good to use a turned alloy carrier with cast iron flat discs. My current front wheel is built on a replica Seeley single disc hub, with a carrier and 11" fixed disc, AP Lockheed twin piston race caliper

I can't use your rotors and calipers anyway, like I said, race rules.

I would expect to have to produce an alternative spindle and spacer to suit whatever hub I used.

So really, I am just asking for a price for an unlaced hub, no rim, no rotors, no calipers.

Fast Eddie · Sep 30, 2014

SteveA said:
madass140 said:

A tough one for me to answer, I dont have Maxton forks to set up my hubs, so I'm in the dark there.
My twin disc hub,rotors, and calipers will no doubt not fit your forks, they are designed to fit Norton 7-3/8" centers
with my fork sliders. my twin disc hubs use the 17mm Norton axle, and the spokes are all "inner spokes " meaning they are all fitted from the center to give caliper clearance. similar to XL/FX HD front twin disc hubs.

Click to expand...

Not as difficult as you think really, my yokes are just a 35mm version of alloy CNC yokes that would fit a Norton.

The Maxton fork legs use a fabricated bolt on bracket for caliper mounting, you make your own to suit rotor dimensions.

A Norvil twin disc hub will work in this application, probably as will a Triumph 4 bolt twin disc hub. In both instances It would be good to use a turned alloy carrier with cast iron flat discs. My current front wheel is built on a replica Seeley single disc hub, with a carrier and 11" fixed disc, AP Lockheed twin piston race caliper

I can't use your rotors and calipers anyway, like I said, race rules.

I would expect to have to produce an alternative spindle and spacer to suit whatever hub I used.

So really, I am just asking for a price for an unlaced hub, no rim, no rotors, no calipers.

This hub is for single disc only though Steve innit?!

SteveA · Sep 30, 2014

Fast Eddie said:
SteveA said:

madass140 said:

A tough one for me to answer, I dont have Maxton forks to set up my hubs, so I'm in the dark there.
My twin disc hub,rotors, and calipers will no doubt not fit your forks, they are designed to fit Norton 7-3/8" centers
with my fork sliders. my twin disc hubs use the 17mm Norton axle, and the spokes are all "inner spokes " meaning they are all fitted from the center to give caliper clearance. similar to XL/FX HD front twin disc hubs.

Click to expand...

Not as difficult as you think really, my yokes are just a 35mm version of alloy CNC yokes that would fit a Norton.

The Maxton fork legs use a fabricated bolt on bracket for caliper mounting, you make your own to suit rotor dimensions.

A Norvil twin disc hub will work in this application, probably as will a Triumph 4 bolt twin disc hub. In both instances It would be good to use a turned alloy carrier with cast iron flat discs. My current front wheel is built on a replica Seeley single disc hub, with a carrier and 11" fixed disc, AP Lockheed twin piston race caliper

I can't use your rotors and calipers anyway, like I said, race rules.

I would expect to have to produce an alternative spindle and spacer to suit whatever hub I used.

So really, I am just asking for a price for an unlaced hub, no rim, no rotors, no calipers.

Click to expand...

This hub is for single disc only though Steve innit?!

This one is.....but Madass does a twin disc hub which is what I am asking about....

Other options are....Triumph 4 bolt type, fairly light billet ones available, Norvil Type, including the RGM 5 bolt variant, and would you believe Suzuki Kettle..but they need a 36 hole rim.....I have one of those (WM3) and a pair of (very heavy) Kettle discs...but I have a plan for that....

My Seeley replica set up is fairy light, first upgrade to that might be a 12" single disc....made to fit the carrier I have, that will probably be enough to stop it, as indeed the current 11" might be!.....a single 11" was after all, all it had in the '70s, though one of the two owners who had the frame between my two 5 year periods ownership fitted a set of Betors twin disc forks and a pair of 11" discs (he kept those.....but...a pair of 10" discs would exploit the Maxton forks fully....and probably not be ridiculously heavy...

madass140 · Sep 30, 2014

My twin disc hubs are 4-1/16" (103mm) across the disc mounting faces, my discs have much less offset than the Norton disc, these hubs are laced with all the spokes inboard, same as Harley FX/XL, this gives more clearance
for the calipers but they are a pain to lace up. I hope this info helps
Ohh, they have the standard Norton disc mounting.

Rusty bucket · Sep 30, 2014

I'm looking to mount a set of standard Norton calipers in a dual arrangement on my 75 mk3. I'm beating my head against a wall trying to sort this out, I'm less concerned over the Oem disks. I love the look of those big Art Deco looking binders, the look like they were pulled off an old Spitfire landing gear.

I've seen your 6 piston setups and am impressed, nice bit of kit! I'm new here but not new to bikes just Nortons, took my first ride on my mk3 yesterday on 30 year old tires... Almost as scary as the chrome plated gutless brakes and choked up chambered pipes.

I like modern performance but wanted a crack at this classic. Goal is to look as original as possible, mc sleeve and dual disk was what I'm aiming for. Can someone point me in the right direction?

madass140 · Sep 30, 2014

I could be wrong but I dont think its possible to use 2 Norton calipers, Norton were flat out getting one on there
having to have that great hub offset to clear the spokes.
my getting the 2 x 6pots fitted and still have spoke clearance didnt happen overnight,

Rosey · Oct 1, 2014

It i possible to get 2 std Norton Lockheed calipers onto std Norton forks but not with a std front wheel.
I used to run 2 calipers 1 facing forward,1 facing back using a Yamaha 650 alloy rim front wheel,they have the same diameter discs and also use 17mm ID bearings.
The Norton axle needs to be machined to fit and 2 spacers made.
It worked but I eventually went to 2 Brembo calipers which made it work better.
Still have some of the parts left.
Brett

Front Disc Hubs

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