K2 / Proflex Riders Group

General => Tech Forum => Topic started by: Thunderchild on November 25, 2009, 11:12:56 am

Title: 4500 for sale with different rear shock mod
Post by: Thunderchild on November 25, 2009, 11:12:56 am
Check this one out.  It is within about an hour drive from my home.  I made an offer, but he didn't even bite.  I even offered for the frame without the rear shock (as I have a great Fox rc150 from my Oz).   The frame would be a nice replacement for my Oz with the moving bottom bracket shell.  http://www.ksl.com/index.php?nid=218&ad=8794168&lpid=&cat=191 
Maybe he will change his mind.  Please!!!!!

Can anyone tell if it is a large or medium?  He thinks it is a large, but was unsure. 

Thunderchild
Title: Re: 4500 for sale with different rear shock mod
Post by: Spokes on November 25, 2009, 11:46:59 am
Even though it is advertised as a large it could easily be a medium. As you might be aware people get confused with the way these frames are sized and measure the bb to seat and assume its a large. This distance is the same on large and medium.
If you do definatly want a large, ask for the top tube measurement,center seat post to center head tube, Large =579mm   Medium =554mm.

Looks like its hardly been ridden so could be a real good catch.
Good luck

Chris
Title: Re: 4500 for sale with different rear shock mod
Post by: Colin on November 26, 2009, 05:38:59 am
It's impossible (virtually) to tell the difference between a Medium and a Large Carbon Frame bike from a photo.

As Chris says, about 540 & 570 between top tube centres, or get him to measure between the "rivets" bonding the two halves together, one at the seat tube and one at the Headtube.
Large is: 512mm
Med is: 486mm

Another way, after my research into the serial numbers is to get him to tell you that, or if not all of it then just the first 5 digits as if it's stamped (not hand engraved) then it's generally of the form, "242-xx aaa bbbb"  where XX is either 16 or 18 and aaa and bbbb is the serial number

16 means a Medium, 18 means a Large

Anyone got a Medium Frame they'd like to swap for a Large? (I'm in the UK)

Col.