Lansdowne Fork Damper Kit (2009)

Rear shock, well there is plenty of guys on this forum who can answer this better than me, Hagons are or where lowish cost all rounders.
Some racers use expensive adjustable dutch items.
 
I bought my set quite awhile ago and finally got them installed today, already noticed a BIG improvement in handling on a test ride and no doubt it will get even better as I get them dialed in just right. The dampers are beautifully made and were easy to install aside from having to file the upper rod caps to fit my springs but from what I've read in this thread I probably have Progressive (brand) rather than stock springs and they are a smaller diameter.
 
For rear shocks, I went with Ikon. Small price difference from the Hagon, but I like the ability to adjust the damping rate. Koni stopped building bike shocks some years ago, and an Australian firm picked them up, rearranging the letters. The American importer is in California.

I got the 7610-1653 set. They're available in black or chrome body or spring. I went black spring, chrome body :wink:
 
BillT said:
For rear shocks, I went with Ikon. Small price difference from the Hagon, but I like the ability to adjust the damping rate. Koni stopped building bike shocks some years ago, and an Australian firm picked them up, rearranging the letters. The American importer is in California.

I got the 7610-1653 set. They're available in black or chrome body or spring. I went black spring, chrome body :wink:

Another Ikon fan here - they match up with the Lansdowne dampers very well. I had to remove a bit of chainguard on mine, but I've heard the lastest ones don't need this?
Got some Falcons for the Proddy Racer, but based on current progress I'll be reporting sometime in 2014... :oops:
 
B+Bogus said:
Another Ikon fan here - they match up with the Lansdowne dampers very well. I had to remove a bit of chainguard on mine, but I've heard the lastest ones don't need this?
Got some Falcons for the Proddy Racer, but based on current progress I'll be reporting sometime in 2014... :oops:

That's right the full adjustable IKON's from Holland Norton Works fitted right on with my original chainguard :wink:
Lansdowne Fork Damper Kit (2009)
 
Fwiw I fitted a set of Ikons bought second hand, and intended for a modern T100 Bonneville to my Commando. These had been specified by the original buyer with a lighter spring rate.I find them superb on my bike either solo or two up.
sam
 
nortonspeed said:
BillT said:
nortonspeed said:

Those are the same shocks I used

My IKON's do have another type number though: 7610-1348 :wink:

Perhaps I should have said they look just like mine

Here's the blurb from their website:
7610-1653 IKON Rear Shock Absorber and Spring assemblies. One Pair.
Max Length 12.99" Min 10.79" Center of Eye to Eye.
4 position Externally Adjustable Rebound with just a finger touch
3 Position Spring Preload
Triple Rate Progressive Spring
Twin Tube Hydraulic Damper
Rebuildable
Email your rider weight allong with ordering and we can match the best spring to your shock. ikonusa@gmail.com
Be sure this is the right suspension for your motorcycle by visiting http://www.ikonsuspension.com and double check the Application List!
Only manufacture defects are returnable.
Please allow 2-3 weeks for delivery.
These shocks fit:
Norton Commando and Interstate 69-78
Price: $380.00
 
I have yet to fit my lansdown kit as I want to sleeve the m/c at the same time....its Summer here now and it might not get done for a while....
I picked up a set of Ikons from a modern Triumph, they bolt straight on( with smaller bushs) but beware the Triumph is such a lardy bike ( former Thruxton owner) the shocks had heavy springs on it.....was horrible to ride.
Phoned up Proven products in Oz and got a set of lighter ones.....way better.
Picked up a couple of sets of Konis off Ebay and rebuilt them using new seals from Ikon, with 85 mls of modern fork oil they are not too bad, both of my Beemers run well with them.
Ideally I'd like a set of Ohlins with their dual action to go with the lansdowns but hey....
 
Hi, I hope John is checking this Topic and has an answer?
My front forks , fitted with the Landsdown Dampers have been fine since I put them in about 2 years ago.
But this summer I started hearing a clunk sound, only in compression, from the left fork.
Making adjustments at the top did not seem to help.
I suspected the rod loose at the top nut.
I have opened the forks up and everything looks perfect, and I was able to drain the exact amount of fork oil out that I had put in.
The bottom Allen screws were tight and the top nuts & rod were tight.
The springs seem as if they could be slack enough to bang against the damper rod.
Has anyone else had a an issue like this and what is the cure?

Bruce MacGregor
 
Hi Bruce,
Merry Christmas,
A little more info, required.
But in responce to the question regarding spring hitting the damper rod.
This is not possible as the spring "rub's" the stanchion wall first, preventing a touch on the rod.
Norton forks clonking as been discused on this site many times, and can be many things, from loose-worn items to brake related issues.
Is the clonk just fork action over undulating surface's?, or when the brakes are applied?
Regards
John
 
Take fist and bump around the headlamp shell and mounts as maybe the oil ring cushions have dissolved for clunk/cling slack - unrelated to innards. I"ve taped my factory forks to stifle this clank till replacing cushion rings. Rough roads and drop downs off wheelies tends to do this after a while.
 
hobot said:
Take fist and bump around the headlamp shell and mounts as maybe the oil ring cushions have dissolved for clunk/cling slack - unrelated to innards. I"ve taped my factory forks to stifle this clank till replacing cushion rings. Rough roads and drop downs off wheelies tends to do this after a while.
Thanks! good to know, I have a slight clunk myself on rough roads and had not thought to check that
 
Manx racer Jack Ebb 500 and 350 racer was questioned by the pre-race inspecters regarding a "clonk" when the forks where pumped..it was the lower bush loose.
 
Damper kit just ordered,was for the MKIIa but will go into the Fastback instead.
I wonder if they would fit into the forks of a Triumph TR5T ?

Lansdowne Fork Damper Kit (2009)
 
Hi,
Back to my earlier post about about a clunk from my forks fitted with Landsdown dampers.
I disassembled my front forks, Inspected the dampers, found nothing wrong, cleaned everything, re assembled, replaced fork oil re set settings and the clunk is gone!
Another" Mystery of the Sea"

Bruce MacGregor
 
it can occur from the threaded top of the damper tube backing out of the fork tube cap - which you don't realize as when you remove the fork tube cap it unscrews from the damper rod before/as your removing the cap. when you reassemble you thread it all back together and the clunking is gone (unless the damper rod once again unscrews itself after some miles)

m


Bruce Mac said:
Hi,
Back to my earlier post about about a clunk from my forks fitted with Landsdown dampers.
I disassembled my front forks, Inspected the dampers, found nothing wrong, cleaned everything, re assembled, replaced fork oil re set settings and the clunk is gone!
Another" Mystery of the Sea"

Bruce MacGregor
 
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