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


Go Back   > >

Triathlon Swim / Bike / Run your thing? Drop in our new triathlon forum for the latest in training & gear. From beginner to expert, and sprint to ironman.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 03-09-07, 02:05 PM   #1
SSP
Software for Cyclists
Thread Starter
 
SSP's Avatar
 
Join Date: Dec 2003
Location: Redding, California
Bikes: Trek 5200, Specialized MTB
Posts: 4,618
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Tri Bike Sizing?

I'm 6' tall and currently ride a 58 cm Trek road bike.

I'm in the market for a Tri/TT bike (I want one that's legal for both USCF and USTA).

Question: is tri/TT bike sizing much different than standard road bike sizing? If so, should I be looking for a smaller or large frame? Or, is the answer that "it depends"?

TIA.
SSP is offline   Reply With Quote
Old 03-10-07, 08:08 AM   #2
cslone
Quarq shill
 
cslone's Avatar
 
Join Date: Jul 2004
Location: Ohio
Bikes: 08 Felt F4, 05 Fuji Team SL, 08 Planet X Stealth, 10 Kona Jake the Snake, 03 Giant OCR flat bar.
Posts: 3,962
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Really, it depends. MOST of the time it will be a smaller frame, sometimes the same size. I can positively say it will never be larger than a properly fit road bike. Just as road bike companies have different measurements, the same goes for tri bikes. The rule of thumb I've always gone by is 2cm shorter on the toptube. That has worked well for my friends that don't want to be fitted, but it's not exact.

You have to take into account that your torso will be farther over the front of the bike, and your elbows will be on the pads, so a shorter toptube(or stem in some cases) will provide this.

And for comparison, I'm just over 6' and ride a 56 road bike with a 120 stem, and a 54 tribike with a 76 degree seattube angle, pushed forward to around 80 degrees, with a 110 stem.
cslone is offline   Reply With Quote
Old 03-11-07, 07:05 AM   #3
james57
Senior Member
 
james57's Avatar
 
Join Date: Mar 2004
Bikes:
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Go to wrenchscience.com, select the TT or TRI sizing calculator, input your body measurements and this should at least give you a point of reference.
james57 is offline   Reply With Quote
Old 03-11-07, 07:11 AM   #4
james57
Senior Member
 
james57's Avatar
 
Join Date: Mar 2004
Bikes:
Posts: 217
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
This one is even better ..

http://www.competitivecyclist.com/za...&SITE.CODE=TRI
james57 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 02:13 AM.