Model 50 Swing-arm

P

Possum

Joined

Jan 4, 2012

Messages

48

• Sep 10, 2016

• #1

I have acquired a Model 50 in bits. I think the swing-arm is bent. Possibly the result of incorrect spacers being fitted at some time in the past.

Can anybody tell me the correct measurement between the rear axle drop-outs. (or, the sum of the correct spacers, brake-plate, hub & speedo gearbox).

I have measured several to find a consensus, but found no two the same. Those that I measured vary between 7-9/16" and 8-5/16"

 

possm

Joined

Jul 3, 2009

Messages

912

• Sep 14, 2016

• #2

What year? Featherbed or pre featherbed?

 

P

Possum

Joined

Jan 4, 2012

Messages

48

• Sep 15, 2016

• #3

1961 Norton 348cc Model 50 Featherbed

 

P

Possum

Joined

Jan 4, 2012

Messages

48

• Sep 28, 2016

• #4

I am reliably informed that all Slimline Featherbed's utalised the same rear hub, brake-plate, speedo gearbox & spacers.
So, the measurement between the rear axle drop-outs on all Slimline Featherbed swing-arms, should be the same.

Surely now someone can give me the correct measurement...

 

gortnipper

Joined

Nov 11, 2013

Messages

5,396

• Sep 29, 2016

• #5

from http://alexlorenzelli-arch1392-2013.blogspot.in/

or see http://www.nortonownersclub.org/noc-cha ... /928606963

 

P

Possum

Joined

Jan 4, 2012

Messages

48

• Oct 4, 2016

• #6

The 'Shades of Black' swing arm drawing can't be Norton Featherbed as the metric measurement between the swing-arm drop-outs on the drawing converts to 9.708".

 

gortnipper

Joined

Nov 11, 2013

Messages

5,396

• Oct 4, 2016

• #7

I was kind of wondering about that, since it was not entirely clear if it was the Honda 750 one he was referring to or not.

Did you try emailing the guys from the NOC link?