external fork springs?

atx360

New Member
Ok after searching I cant seem to find any info on how to do this mod?
I really like the look of external springs on front forks. Since im putting progressive rear shocks on my build I could use the springs off my stock rears, which I think is the standard when doing this mod. :-\

So my question is......Do I remove the internal fork springs? and if so how do I take up that space? with pvc? and should I do anything different with the valving?

Maybe this belongs in the 50$ mod thread if anyone wants to do a writeup/has a link to one.

thanks everyone!
 

foundation982

New Member
Some springs were external and covered by rubber "gators" my cl350 has these and after you remove the gators the springs show its not a "mod" you can simply do with any forks try looking for some scrambler forks like my cl has
 

DesmoDog

Member
I've only ever seen this on forks that had external springs to begin with. The "mod" is simply not installing the covers... like on this Ducati


This still has the lower shrouds on it, those could be removed to show more of the spring. (FWIW the top shrouds are only missing here because it's easier to assemble the forks that way for a mock up, the finished bike will have covers on it.)

This is the same fork with the covers on



It sounds like you want to put rear springs between the top of the sliders and the bottom of the lower triple? I'm no expert but it would seem highly unlikely a rear spring's rate, diameter, and length would all be close enough to make this work?
 

hillsy

Active Member
DesmoDog said:
It sounds like you want to put rear springs between the top of the sliders and the bottom of the lower triple? I'm no expert but it would seem highly unlikely a rear spring's rate, diameter, and length would all be close enough to make this work?
That's pretty much what I was thinking too - rear springs would be far too stiff and less responsive than proper internal front springs (the difference in length / coils is the key).

You could probably use a light duty external spring with your current fork springs if you want to achieve the look, but it may not be the most practical thing handling wise (unless your current front springs are sagged, then it might be a good thing). And the springs would probably scratch the chrome on the forks making the seals weep in no time.
 

atx360

New Member
WELL...I feel dumb! ???
I didnt know there was springs under the rubber boots on alot of these bikes. so I guess I'm goning to scratch this idea. Thanks for th knowledge though!!!

Heres a pic of what I had in mind.........
 

Attachments

milehighcj360t

for your health, dummy.
DTT BOTM WINNER
what forks do you have now? i want to ditch my external spring forks for some internal springs...maybe we can trade?
 

Tim

Administrator
Staff member
There aren't springs under most rubber gaiters. But there are some notable forks with external springs like Norton Roadholders for example.

Troy modded his front forks to run with external springs (rear shock springs) on Willow.

Do yourself a favor and read through this incredible thread. Well worth the time invested. Not sure where the front forks are done - around page 34 I think it starts.

http://www.dotheton.com/forum/index.php?topic=24567
 

Tim

Administrator
Staff member
Oh, and we can ask Jason at Dime City what they did on the front end of the 450 pictured above. He's at the Timonium bike show so a little tied up. Not sure if there was any info on the Cafe Racer TV episode with that bike in it.
 

atx360

New Member
Yeah I thought it was willow that did the rears on front but didn't want to say that cause I wasn't sure...
I've read most of that thread and its INCREDIBLE.
Thanks for the response.

I just cleaned up my forks and did seals yesterday so may be a while before I pursue this.

Quality info for future though.

Sent from my SAMSUNG-SGH-I997 using Tapatalk
 

lingo

social pariah
Tim said:
Oh, and we can ask Jason at Dime City what they did on the front end of the 450 pictured above. He's at the Timonium bike show so a little tied up. Not sure if there was any info on the Cafe Racer TV episode with that bike in it.
The cb450 K0 and K1 had the external spring front forks.
 

trek97

No Custom Title
DTT BOTM WINNER
Im runnin 69 cl350 scrambler front end on my 76 cb360. as soon as they send my clip-ons (back ordered now) I am gonna remove the boots to expose the springs on mine.
 

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