Author Topic: IKON Shock absorbers for 1969 750  (Read 1164 times)

Offline Simon Y

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IKON Shock absorbers for 1969 750
« on: February 06, 2018, 11:13 »
I am about to buy a pair of these shocks (reference number 7610-1318, length 345mm).
The full prcice from IKON UK is a rather expensive 390.
Does anyone know of a cheaper source?
Series 2 180 Jota
750 Breganze
1200 Anniversary (previous)

Offline sfc vintage

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Re: IKON Shock absorbers for 1969 750
« Reply #1 on: February 06, 2018, 11:39 »
Hi.

You have good experiences with: YSS.

Br
Peder
Laverda endurance racer 1974
Laverda spaceframe
Laverda JOTA 6752
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Laverda 1000. No 1390 ( Project)

Offline Simon Y

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Re: IKON Shock absorbers for 1969 750
« Reply #2 on: February 06, 2018, 12:00 »
I trust Koni / Ikon so found a pair at a rather better price on fleabay.
Thank you
« Last Edit: February 06, 2018, 12:45 by Simon Yates »
Series 2 180 Jota
750 Breganze
1200 Anniversary (previous)

Offline Basketcase

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Re: IKON Shock absorbers for 1969 750
« Reply #3 on: February 06, 2018, 19:32 »
Not sure about the 1969 frame.

My 1973 GTF has Ceriani shocks with length 355mm.

My SF2 has 365mm.

But then again I also have a spare unidentified 750 centre stand I bought that is 20mm shorter than either of my bikes. Maybe this is an earlier stand.

Offline Simon Y

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Re: IKON Shock absorbers for 1969 750
« Reply #4 on: February 06, 2018, 19:59 »
The Koni's may be on a long delivery time.  What other make is recommended for a '69 750?
YSS was mentioned but what model and centre to centre length?
Series 2 180 Jota
750 Breganze
1200 Anniversary (previous)

Online sfcpiet

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Re: IKON Shock absorbers for 1969 750
« Reply #5 on: February 06, 2018, 20:00 »
I wouldn't search for the cheapest, but for the correct length...

355mm is stock for the 750s, triples have 365mm.  IIrc, it's actually 352/362mm.

Not much clearance under the mudguard at full bump with the stock shocks, going shorter is asking for trouble.

piet
180s feel quick, 120s are...      If it ain't broke, fix it till it is.

"A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics"  Georg Fitch 1916

Offline Simon Y

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Re: IKON Shock absorbers for 1969 750
« Reply #6 on: February 06, 2018, 20:07 »
Thanks Piet.  It is confusing when the Ikon site suggests the 7610-1318 model with length 345mm.
Obviously the key points are:-
Not too short to cause the clearance issues suggested by Piet.
Not too long that the rear wheel does not lift clear of the ground on the centrestand.

The original incorrect units (the Koni GP motocrosss shocks) were only 330mm.

Could someone please check the lengths of the unts fitted to an early 750 please.
Series 2 180 Jota
750 Breganze
1200 Anniversary (previous)

Online sfcpiet

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Re: IKON Shock absorbers for 1969 750
« Reply #7 on: February 06, 2018, 20:26 »
Simon,

All 750s, SFCs included, shared the same Ceriani shocks, from start to finish. 

piet
180s feel quick, 120s are...      If it ain't broke, fix it till it is.

"A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics"  Georg Fitch 1916

Offline Simon Y

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Re: IKON Shock absorbers for 1969 750
« Reply #8 on: February 06, 2018, 20:49 »
A search produed this result.

Just measured my SF2 Cerianis and they are 347mm mounted on the bike with the rear wheel off the ground, so I'd say 345mm when not in tension.
Series 2 180 Jota
750 Breganze
1200 Anniversary (previous)

Offline LJ

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Re: IKON Shock absorbers for 1969 750
« Reply #9 on: February 06, 2018, 21:05 »
love my Cerianis on my two twins, look the part too, Wolfgang was going to sell ikons with Ceriani levers while he had stock.

Grant can rebuild them for you if you have them, sure it must be cheaper than IKONS
1986 RGA Jota Sprint 
1974 3C
1973 750GT              
1971  750SF 


 I was born to make mistakes,not to fake perfection

Online a14rgs

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Re: IKON Shock absorbers for 1969 750
« Reply #10 on: February 06, 2018, 21:09 »
Forum user Alexb83 recently upgraded the shocks on his Jota to a custom-made pair from Maxton, but the shocks he removed were Koni - and they were too short for normal Jota application IIRC. They were still in his garage a couple of weeks ago, so perhaps send him a PM and see if they're the right size for your 750 - I think they are ;)

HTH,
Alan :)
1983 RGS1000, 150000km, owned and loved since 1989 :-)
1977 Jota
"Grammar : the difference between knowing your shit and knowing you're shit".

Offline Gravelroad

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Re: IKON Shock absorbers for 1969 750
« Reply #11 on: February 06, 2018, 21:17 »
The original Koni mades on my 3C are 7618-1397, being 362mm. My old Koni parts lists says for the 750 it is 7618-1397, 345mm long, so looks like they are the right ones for you. Don't know about the Cerianis, but the Konis have a rather big rubber bump stop on the rod, which will limit travel somehow.

Offline CLEMTOG

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Re: IKON Shock absorbers for 1969 750
« Reply #12 on: February 07, 2018, 10:45 »
I remember being in a Moto Laverda Seminar at Breganze in the 70's when the clubs founder Hal Kendall  (at question time) told of how his local roads in in Ringwood (Texas) had undulations not unlike those in Los Angeles but much less severe and that he had to remove the rear suspension units from his A/E sidecar and fit home made solid struts to "cure" severe straight line handling problems, which did raise a bit of a laugh, he then asked why do Moto Laverda not fit Koni shocks, and the reply that came from Massimo was that "they do not make front forks, and we don't fit mismatched components front and rear" so it was Ceriani front and back and later Marzochi front and back.
CLEM
« Last Edit: February 12, 2018, 18:20 by CLEMTOG »

Offline Alexb83

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Re: IKON Shock absorbers for 1969 750
« Reply #13 on: February 12, 2018, 09:07 »
Forum user Alexb83 recently upgraded the shocks on his Jota to a custom-made pair from Maxton, but the shocks he removed were Koni - and they were too short for normal Jota application IIRC. They were still in his garage a couple of weeks ago, so perhaps send him a PM and see if they're the right size for your 750 - I think they are ;)

HTH,
Alan :)

They're shorter than yours/the Maxtons patterned off yours Alan (365mm) - so they must be the 352 described above.
Anyways, I'm in touch with Simon, just need to see if I get the Mrs. to get them packaged up and posted in my absence!
These days
1979 Silver Jota
2014 Silver KTM 1190 Adventure

Back when I was young(er)
2004 Suzuki SV650
2005 Triumph Sprint ST 1050
2012 KTM 690 Duke

Online a14rgs

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Re: IKON Shock absorbers for 1969 750
« Reply #14 on: February 12, 2018, 17:11 »
They're shorter than yours/the Maxtons patterned off yours Alan (365mm) - so they must be the 352 described above.
Anyways, I'm in touch with Simon, just need to see if I get the Mrs. to get them packaged up and posted in my absence!

Nice one! I'll claim my commission (more chocolate Hobnobs) when you're back from your current jolly hectic work schedule ;)
1983 RGS1000, 150000km, owned and loved since 1989 :-)
1977 Jota
"Grammar : the difference between knowing your shit and knowing you're shit".