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F: Frame Egli Damper Length

Otto

Website User
VOC Member
Which rear damper length is recommended on a standard Egli frame with 19" rear wheel (90 Kg driver, standard road use only, no racing)? I am interested in a pair of IKON dampers. Which type will fit best?
Thank you.
 

Albervin

Well Known and Active Website User
VOC Member
I suggest you contact the Godet works first. They should be able to assist. Otherwise send an e-mail to Geoff at IKON. He is always helpful.
 

Otto

Website User
VOC Member
thank you "Albervin". I will contact Geoff first. Have a nice day in Thirroul!
 

davidd

Well Known and Active Website User
VOC Member
I am not sure what a standard Egli frame means, but from memory, the twin shock early Egli frames used 13"shocks. I would follow @Albervin 's advice.

David
 

Vincent from Ghent

Well Known and Active Website User
VOC Member
Which rear damper length is recommended on a standard Egli frame with 19" rear wheel (90 Kg driver, standard road use only, no racing)? I am interested in a pair of IKON dampers. Which type will fit best?
Thank you.
On my Godet Egli, the rear shocks are Maxton. The springs are 180 mm long. I hope this helps.
 

vibrac

Well Known and Active Website User
VOC Member
I grabbed what I thought were the Egli Units when I rebuilt the Egli Comet (in 1000 frame) last winter but they were 12" (300mm) and were too short here is a picture with them on (and the line I drew at the time) I had to buy new ones! it doesnt look too bad but the chain could caress the SA pivot. One day I will get to get some shake down runs on it....
1586077120319.jpeg
 

Bill Thomas

Well Known and Active Website User
VOC Member
I like the look of The Bike Tim, But that fuel pipe might give trouble ?.
Going in from the top won't it get air locks ?.
 

vibrac

Well Known and Active Website User
VOC Member
The Banana tanks I have had are always a pain for the last litre I have considered putting another tap at the rear however the acceleration always keeps the fuel at the rear anyway (joke).
Its also difficult with a Mikuni since the intake pipe is a straight up pipe (I never thought I would envy a design feature of a monoblock!)
 

Otto

Website User
VOC Member
I grabbed what I thought were the Egli Units when I rebuilt the Egli Comet (in 1000 frame) last winter but they were 12" (300mm) and were too short here is a picture with them on (and the line I drew at the time) I had to buy new ones! it doesnt look too bad but the chain could caress the SA pivot. One day I will get to get some shake down runs on it....
View attachment 33956
with standard silencer, 18" wheel and a damper longer than 320mm, the spindle nut can hit the silencer I heard. Do you use a standard silencer?
 

vibrac

Well Known and Active Website User
VOC Member
Gold Star as I remember it sounds good . God knows when I will hear it again...
1586112128462.jpeg
 

Bill Cannon

Well Known and Active Website User
VOC Member
My original Swiss Egli, EV23C is fitted with 300mm Girlings with 18" rim.
I think it looks a bit low and if I wanted to replace the units I would go about 325mm to sharpen the steering.
On your 19" rim 310-315 would be near the mark.

Cheers Bill
 

Pushrod Twin

Well Known and Active Website User
VOC Member
I have just removed a pair of 13" 330mm, Hagons from mine because they were junk after 4000 miles & 18 months. I dont have a problem with the silencer, and it was moved backwards to get clearance for the kick starter.
Mine is a copy of a Slater frame. I see in Phillipe Guyony's book that the rear frame loop can be at different heights in relation to the backbone. That will directly impact on the shock length.
 

Attachments

Pushrod Twin

Well Known and Active Website User
VOC Member
After looking in the wrong places, as you do, I finally found a message I received from the late Phil French, dated March 93. It was his response to my question regarding shock & fork lengths. His answer to the shock length question was as follows;
"rear shock absorber length should be, scribe a line through the front spindle and swingarm pivot, then the rear axle spindle should be 7/8" below that line"

He does not state if the bike should be loaded or not. I just measured mine with a stringline in the position seen in the pic above with the wheels just touching the ground and the answer was nearly 2" so I expect the 7/8" figure would be with a rider on the saddle.
 

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