swing-arm - options ?

markQLD

markQLD

Hero member
Location
QLD Australia
reckon we need a separate thread on swing-arms.  after the discussion on me recent 'Clyde' thread.
http://www.laverdaforum.com/forum/index.php?topic=87136.0

Clyde's swing-arm   (origin unknown ?)
clydeswingarm4.jpg


IMG_1915b.jpg


thought it might have been a Metmachex swing-arm, but got this reply back from Sean Ryde. (Feb 13, 2013)
Good to hear from you again.
Sorry but that swingarm in your pictures wasn't produced by Metmachex.
I've never seen one like this before so couldn't comment on who has produced it.
However I am in the process of manufacturing a couple of swingarms for the Jota at present.
Regards,   Sean Ryde
METMACHEX ENGINEERING LTD
Unit 9, monk road, Alfreton, Derbyshire, DE55 7RL


so all ya Laverda blokes,,  come on,,  show us ya swinger porn !!   8)
 ,, and we wanna perv on ya links too !!
http://www.metmachex.net
http://krueger-junginger.de

 
Here's mine, again unknown manufacturer.
Taper roller bearings, accepts standard rear brake torque arm.

pb081404.jpg

 
Here's a Metmachex (i think) that i've got on a Jota - will probably sell it when i get around to restoring Jota to STD - Regards - Phil
 

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Christ on a stick, it's like Vague News here!!!  :D :D :D
None of us know who made what. Once the label falls off we're facked!
 
Grant,

yours might be a Davida - I had one very like that on a Honda 900 I broke (in both senses of the word  :-[) and the considered opinion of the shite old Honda crowd was that it was either Davida or Degens.

Phil, I'm with the JMC diagnosis - the metmachexes I've had (bloody Honda 900s again - broke one of that pair as well) didn't have pinch bolts around the eccentrics, they sat in an unbroken alloy orifice. It used a couple of bolts through the eccentrics to lock it in place. Going back 20ish years now but I think they worked by clamping the 2 halves of the adjusters onto the swingarm. But I could be wrong.

Bob
 
phil37 said:
Here's a Metmachex (i think) that i've got on a Jota - will probably sell it when i get around to restoring Jota to STD - Regards - Phil
Click to expand...

Phil,
that is a JMC swingarm, is identical to mine and Cosi's, I bought both swingarms together at the same time from JMC
and then made the mistake of ordering another 4 and paid for one up front, lost that money

well is nearly identical, I ordered both swingarms minus all the brake mounting brackets as I made my own floating caliper mount




 
+1 Phil's is certainly a JMC.  My good mate Tommy has a Metmachex and I will in fact be catching up with him tomorrow so will try to remember to take some happy snaps.
 
breganzane said:
I made my own, don't like the braced style (and I'm a tightarse). :D
Click to expand...
,, and let's not forget wot SteveB has done down at 'The House of Speed' in Bungendore.
http://www.breganzane.com/rebuilds/rga/rga_phase1.php
one good swing-arm ain't gunna make it all just fine & dandy, eh.

back in '84 a young Marko thought the standard chassis was all a bit phaaarked.  & imported a Spondon frame from the UK.
that fixed the handling of me Jota.  was a real hoot to fang around on.
bike coppers would pull me over just to check it out.  reckon they liked to spook the crap out of me !!
fortunately, they didn't ask too many questions,,  so i didn't have to tell too many lies.   8)
 
markQLD said:
bike coppers would pull me over just to check it out.  reckon they liked to spook the crap out of me !!
Click to expand...
Used to happen to me in Perth on a stock 3CL. They just wanted to look it over and have a chat, unlike the dickhead who pulled me over in 1987 who yellow stickered me for having Japanese instruments on a European bike saying " I nearly bought one of these when they came out and they never had Japanese gauges" - wanker..
 
Davo said:
Used to happen to me in Perth on a stock 3CL. They just wanted to look it over and have a chat, unlike the dickhead who pulled me over in 1987 who yellow stickered me for having Japanese instruments on a European bike saying " I nearly bought one of these when they came out and they never had Japanese gauges - wanker"..
Click to expand...

I think this was the correct quote. :D

                                                Dave
 
Grant said:
Looks too small tubes for my liking, ...........
Click to expand...
dunno ??  remember it's a twin-shock not a mono.
reckon it might just have the right amount of lateral deflection that the GP blokes are all looking for these days ??

but,,  i am from the canefields.  i no nothing !  8)
 
sfcpiet said:
Cool Very cool shock fixings, Steve!
Have you been able to try out different settings?
piet
Click to expand...

Thanks Piet,
The idea was that I could try out different rear ride heights easily by making a few different brackets.  The reality is that I worked out what should be the right geometry and made those barckets, and have never got around to making any others! :D
The whole RGA project sort of ground to a halt late 2009 when I started getting serious about the racing thing.  There's not enough money or time to feed two such hungry projects at once!
Cheers
SteveB
 
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