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View Full Version : Spacer(s) Below Crown Race to Suspension Correct = Bad Idea?

syclone13
08-28-2007, 05:49 PM
Hey guys - long time lurker, first time poster.

I recently acquired a 90's Trek 8000 MTB frame for $25 that I'm turning into a cheap-as-possible SS commuter to spare my nice bike from the overflowing bike racks now that fall semester is back at my college.

I've got a rigid fork lying around that is about 400mm A2C with a really long uncut steerer. I was thinking about adding alloy headset/stem spacers at the top of the crown before the crown race to make it more like 440mm to correct for the 80mm fork that originally came on the bike. This would also let me fine tune down to increments of 3mm or so if I really wanted to.

Anyone ever tried this? Will it work/not fit/break the headtube/break the steerer off of the fork/screw with geometry?

I know I could get a good rigid fork at a decent price, but I'm trying to get this together in the next few days and no one seems to have any decent rigids locally. Thanks!
rockyrider
08-28-2007, 06:02 PM
That won't work, the steer tube of the fork will only be the correct 30.0mm diameter for the crown race for maybe 6mm up from the crown, then it will be too small for crown race. There are no crown race spacers as a product.
Kamikaze
08-28-2007, 06:32 PM
That won't work, the steer tube of the fork will only be the correct 30.0mm diameter for the crown race for maybe 6mm up from the crown, then it will be too small for crown race. There are no crown race spacers as a product.

Yes there are, well, not exactly what he wants, but kind of similar. In a way, maybe...
http://www.ventanausa.com/main_accessories.html

But what he wants to do -using steerer tube spacers- will not work.
rockyrider
08-28-2007, 06:43 PM
But just 8mm not the 40mm he wants for extra height.

A Surly Instigator fork would be just the ticket, 447mm A-C and 26" wheel canti mounts.
syclone13
08-28-2007, 07:44 PM
Thanks, guys. I was hoping to not have to buy a new fork, but its not the end of the world.
Krautwaggen
08-28-2007, 08:32 PM
I have an Instigator Fork for sale. Long steer tube (It's currently on an XL Specialized HardRock. 1 1/8" Starnut installed. Let me know if you want it. I'm located in Indiana.
email me directly at briangesslerathotmaildotcom if you're interested.

Thanks

brian
myron
08-29-2007, 01:03 AM
I know this dude that's got a nearly ten inch steer tube fork on the way. Since we lack a saw, I was thinking a tennis ball on top maybe. Something to cushion the blow, at least.
bdee
08-29-2007, 10:59 AM
Not to completely derail this - but has anyone used the races on the Ventana site? I was thinking of eventually slapping a REBA on my KM - is the 7mm overkill ?

http://www.ventanausa.com/main_accessories.html
rockyrider
08-29-2007, 11:01 AM
Cane Creek has a headset with 5mm of extra height, often just enough to clear the adjusters on the Reba

http://www.canecreek.com/s3_plus_5.html
bdee
08-29-2007, 11:16 AM
Cane Creek has a headset with 5mm of extra height, often just enough to clear the adjusters on the Reba

http://www.canecreek.com/s3_plus_5.html

Thank you sir! I need to grab a new HS soon for another project. I'll pickup one of these and swap the current HS in my KM to the other frame.