FatCogs Community Discussion Forums

Go Back   FatCogs Community Discussion Forums > Fat Chance Bicycles > General Fat Chance Discussion

General Fat Chance Discussion Anything and everything about the best mountain bikes ever made.

Reply
 
Thread Tools Search this Thread Display Modes
Old May 22nd, 2012, 10:37 AM   #1
mkozaczek
Senior Member
 
Join Date: August 11th, 2011
Location: Los Angeles, CA
Posts: 121
Default Trying to work out the sizing on Yos

So, I've been after a Yo for myself for a little while. I had a 1992 that I restored and ultimately sold, it was too small. I bought a 1992 large from Woody thinking it might be the ticket but just haven't gotten over the bright yellow and felt that perhaps an M/L might be the better size for me (6'1" with a 34 inseam). I finally found a very nice 1992 Yo that I thought was an M/L and would be a good color match for my Yo fork.



The bike is a 1992, serial is 261Y2M which would imply a medium. However the head tube is 123mm long, which implies a M/L. Standover is just a tick over 30" which also support that theory, even though the M/L wasn't technically offered until 1993. Frame does have a threaded BB shell FWIW

So my questions

1. Is this bike suspension corrected, or would a 107mm headtube (1994 Yo sizing) be the key dimension to verify suspension corrected geometry?
2. Is it just an early M/L before the designation came about??
3. What height of rider were these frame really meant for??

With a regular 330(ish) post I'm maxing out the post and still don't feel like it's right. I have a 410mm post coming which will help that, but I'm just not sure that I'm trying to make it something it's not.

Thanks,

Last edited by mkozaczek; June 5th, 2012 at 5:22 PM.
mkozaczek is offline   Reply With Quote
Old May 22nd, 2012, 12:31 PM   #2
tvcreative
Senior Member
 
tvcreative's Avatar
 
Join Date: March 15th, 2010
Location: Riverside, IL
Posts: 716
Default

I am with you on some of the size issues, I have 3 mediums all different measurements on the top tube, and head tube.

I find a SM that is good on top tube, and it is short on seat tube

Most of the YO's I have had - were really long top tube-wise

Sometimes I really think my Wicked's fit and ride so much better...

My guess is some of this was custom to the original build requested by original customers

my pre 92s all were around 95mm to 98mm headtube length, I think YO NATE YO has posted on this recently...

A standard YO eddy fork not BOI would be likely...as that changed - I think - a year after the 10th anniversary version...

Maybe someone who worked there will reply?

Last edited by tvcreative; May 22nd, 2012 at 6:01 PM.
tvcreative is offline   Reply With Quote
Old May 22nd, 2012, 2:03 PM   #3
nader
Senior Member
 
nader's Avatar
 
Join Date: July 17th, 2011
Location: in the harbor
Posts: 311
Default

Quote:
Originally Posted by mkozaczek View Post
..
1. Is this bike suspension corrected, or would a 107mm headtube (1994 Yo sizing) be the key dimension to verify suspension corrected geometry?
1.1Can I use the BOI fork or do I really need a Yo Fork?
2. Is it just an early M/L before the designation came about??
3. What height of rider were these frame really meant for??
I have a suspension corrected M/L YO with exact 110 mm headtube.
I would say yours is an M and isn't suspension corrected, so you need a fork with max. 39mm installation height (-> no BOI).
nader is offline   Reply With Quote
Old May 22nd, 2012, 3:00 PM   #4
mkozaczek
Senior Member
 
Join Date: August 11th, 2011
Location: Los Angeles, CA
Posts: 121
Default

Quote:
Originally Posted by nader View Post
I have a suspension corrected M/L YO with exact 110 mm headtube.
I would say yours is an M and isn't suspension corrected, so you need a fork with max. 39mm installation height (-> no BOI).
I have an M from 1990 and one from 1992 and they both have much shorter headtubes, around 95mm or so...
mkozaczek is offline   Reply With Quote
Old May 22nd, 2012, 10:18 PM   #5
mkozaczek
Senior Member
 
Join Date: August 11th, 2011
Location: Los Angeles, CA
Posts: 121
Default

I measured the fork and it's definitely a Yo fork, not a BOI. So at least my theory that this is a non-suspension corrected frame can have a happy ending as long as the bike fits me in the end.

Gotta finish it and take it out for a ride.

First I need a different bottom bracket, the syncros I have in there doesn't work.
mkozaczek is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 4:57 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.