Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-22-05, 08:48 PM   #1
raygunner
GG + Wendy O. 4EVA
Thread Starter
 
raygunner's Avatar
 
Join Date: Dec 2004
Location: Blatz To The Future
Bikes:
Posts: 1,476
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
top tube measurement: ACTUAL v. VIRTUAL?

Can someone provide a bit of clarity to this subject. Is there any difference?
__________________
raygunner is offline   Reply With Quote
Old 11-22-05, 08:50 PM   #2
dolface
Iguana Subsystem
 
dolface's Avatar
 
Join Date: Nov 2004
Location: san francisco
Bikes:
Posts: 4,016
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yeah. iirc virtual is used for compact frames (the ones w/ the sloping toptubes) to give what the tootube length would be if the frame was standard geometry.
dolface is offline   Reply With Quote
Old 11-22-05, 08:59 PM   #3
steaktaco
bannned
 
steaktaco's Avatar
 
Join Date: Jun 2005
Location: philadelphia
Bikes: black bike, white bike, blue bike, yellow bike, silver bike
Posts: 2,228
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
don't listen to dolface he doesn't know what he's talking about.

actual = measured in person
virtual = measurements taken from online source
__________________
steaktaco.com <-- poohoopsies.

steaktaco is offline   Reply With Quote
Old 11-22-05, 09:03 PM   #4
raygunner
GG + Wendy O. 4EVA
Thread Starter
 
raygunner's Avatar
 
Join Date: Dec 2004
Location: Blatz To The Future
Bikes:
Posts: 1,476
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ah, it's much like record grading. "Mint" means ran over by a few cars, eh?
__________________
raygunner is offline   Reply With Quote
Old 11-23-05, 07:13 AM   #5
queerpunk
aka mattio
 
queerpunk's Avatar
 
Join Date: May 2005
Bikes:
Posts: 5,987
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
only virtual bikes have virtual top tube lengths.

but i hear they're virtually impossible to ride.
queerpunk is offline   Reply With Quote
Old 11-23-05, 07:48 AM   #6
Devolution
Senior Member
 
Join Date: Nov 2004
Location: Pittsburgh!
Bikes: Track bike, road fixed, cross fixed, two single speed mountain.
Posts: 311
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Just to clarify, what dolface said.

Comes from mountain bike sizing, where radically sloping top tubes and raised seat masts made conventional sizing standards questionable to follow. The virtual top tube measurment is the length of the imaginary line between the center of the headtube and the center of the seattube, level with the ground, and about 2-3cm down from the top of the headtube, where a flat top tube would attach. Other virtual measuremtns follow, like those for elevated chainstay bikes etc...

What dolface said.

-brad
Devolution is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 11:49 PM.