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Harris Magnum 1
Moderators: KeithZ1R, chrisu, paul doran, Taffus
Finally got me a ROLLING chassis !!!!!!!!
The chaps at Faulkner Springs measured the rate of the one me SHOWA had fitted and sure enuff it was a 450lb effort - what normally gets fitted to a Harris Mag 1
I contacted Harris for a bit of advice - and Lester himself called me back for a chat
450lb is right for a 2:1 leverage ratio, but with the JMC its just over 3:1, so I ordered a 650 lb spring to try...... Anyhow after weeks & weeks of trying to suss out sorting the shock mounting to the JMC - I finally decided to uses some M20 studding, knocked up summink to fit the shock and made an alloy block to fit to the top brace.....
A local bike Engineer cut & welded it for me.... This friggin' JMC has cost me an arm & a leg
SO, fitted it all together and it's looking OK....
You can see the typical adjustment range as it is at the mo' - but I can lower it another 50mm by taking off the backing nut if needed .....
LOWEST:
HIGHEST:
Also got hold of a proper Harris seat unit......... just gotta decide if I'm gonna use it :shrug
Finally checked on GROUND CLEARANCE for hacking down to the chippy on a Summers evening

The chaps at Faulkner Springs measured the rate of the one me SHOWA had fitted and sure enuff it was a 450lb effort - what normally gets fitted to a Harris Mag 1





A local bike Engineer cut & welded it for me.... This friggin' JMC has cost me an arm & a leg

SO, fitted it all together and it's looking OK....

You can see the typical adjustment range as it is at the mo' - but I can lower it another 50mm by taking off the backing nut if needed .....
LOWEST:

HIGHEST:

Also got hold of a proper Harris seat unit......... just gotta decide if I'm gonna use it :shrug

Finally checked on GROUND CLEARANCE for hacking down to the chippy on a Summers evening


And on the 7th day... Zeds were created!
- Ginger Bear
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Rolling chassis looks ace matey.
But alas, the seat unit just looks overbearing. It could look ok if trimmed back to a line 1.5 inches below seat, but would need to see a rear end view before I was convinced.

But alas, the seat unit just looks overbearing. It could look ok if trimmed back to a line 1.5 inches below seat, but would need to see a rear end view before I was convinced.

👀 👀 👀
email - adrianhorsfield@live.co.uk
email - adrianhorsfield@live.co.uk
ADRIAN H wrote:Rolling chassis looks ace matey.![]()
But alas, the seat unit just looks overbearing. It could look ok if trimmed back to a line 1.5 inches below seat, but would need to see a rear end view before I was convinced.
If I can find a decent HD photo of me rear end , I'll post it by the weekend

Must agree - it looks fookin' huge ....... but I'll take the tank into work with me tomorrow & get some more shots ... also with Plan B : the Zed Butt

And on the 7th day... Zeds were created!
- paul doran
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paul doran wrote:Ginger Bear wrote:Looks fab Mark, wot with the modern brake & running gear.![]()
BUT that seat unit..................................![]()
![]()
Steve I see You spotted the singular brake caliper too
nothing changes with Piglet then![]()
Singular - your sights getting worse then Paully

And on the 7th day... Zeds were created!
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