Cinder Cone 1993 Steerer Length

fullerlee

Old School Hero
Hi,
I rescued a 1993 Cinder Cone (silver/green) which currently has some RockShox fitted.

I want to switch these out for rigid forks. Can anybody tell me what steerer and thread length I need to look for please?

Thanks,

Lee
 
Measure the one in if it is a direct replacement.
Otherwise it changes with frame size, so we will be guessing.

But measure as it easiest.

Or measure the headtube, it'll be 110/120/130/140/150/as Kona kept to nice round numbers.

Then ad you headset stxk height (guess at 40mm for threaded as you can always cut it shorter.
Give yourself the stack height of the headset top parts to play with.
25mm is probably a approx number there.
 
Thanks

Headtube is definitely 150.

The existing forks are threadless. I'd quite like to stick with threadless for simplicity, but I can't seem to find any 1 1/8 threadless rigid forks - do such a thing exist?
 
20" frame then.
You mentioned threads but
Threadless is easier a bit.

150mm + headset stack + stem stack.
Grab a few 5/10/,etc headset spacers to get the highest you like (or a kid cutting u till you need to.)

Work on ~30mm for headset
~40mm for stem.
Use that as a minimum (it's not but it makes it easier)

Grab a picture of the bike, we always need pictures :)

Might be after the forks steerer you have..
 
Pics attached. These are obviously non-threaded.

Ideally I'd just want to swap them out for rigid non-threaded, but I can't seem to find what I'm looking for (1 1/8th non-threaded, rigid), or maybe I'm looking for the wrong thing.
 

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No, so much any more. It was for some 20 odd years.

Just check it's not tapered.
Or put a wanted up.

Length A2C (axle to crown) will want to be >410 (mod 90s) to 425 I would say. (late 90s length)

Late 90s fork where about 433 (70mm Bombers) but you have sag.

That looks to be a 1993 frame.
 
Adding to what F.C. has advised; the 1993 Cinder Cone is Pre-Suspension corrected geometry. A Threadless Rigid Fork with a shorter Crown to Axle and Canti Bosses will be somewhat trickier to locate.

The bike was designed to give the correct Head Tube angle with a C-A of 390mm, which was the spec for the Project 2 that year - but it will be threaded. I believe that the Project 2 was not made in Threadless, 390mm, Canti. You could use a later pair of 410mm Suspension Corrected Project 2 forks that came in Threadless, but this will make the steering a little more sluggish - but no more labouring the the Rock Shox J3 currently on there.

Pip
 
Last edited:
Great info, thanks. I'm considering doing a drop bar gravel conversion on this, so sluggish steering wouldn't be such a bad thing. Definitely want rid of the J3s, they weight a ton!

I posted a wanted ad :)
 
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