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

Go Back   > >

Introductions Welcome to the BikeForums community! Please introduce yourself to other forum members here.

User Tag List

Thread Tools Search this Thread
Old 06-11-09, 07:40 AM   #1
Thread Starter
Join Date: Jun 2009
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Please Help...TT bike size (everyone has an opinion, which is right)

I am 5 10 with an inseam of 31...I currently ride a 54cm Madone and am looking to buy a frame for a TT bike...I have a great opp to get a Specialized Transition Pro that is also a 54...

I have heard, size down for a tri..Ive heard keep the same size...what should I do

One thing I read (which was probably the most logical point that I have seen is ...
Your tri and road bike should be the same size...The point was Tri Bike frames are designed for TT therefore they are already putting your body in different angles than your road bike...So if you ride a 54 road bike and size down for tri, you could potentially be going down 2 or more sizes since the tri is made differently...

Any thoughts
Spin4fun is offline   Reply With Quote
Old 06-11-09, 07:47 AM   #2
Older than dirt
CCrew's Avatar
Join Date: May 2008
Location: Winchester, VA
Bikes: Too darn many.. latest count is 11
Posts: 5,343
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm 5'9" with the same inseam. I ride 54 in road sizing. I was professionally fitted once and measured by a different shop before buying my current tri frame. It'a a 52. Fits perfectly.

I suggest you look at the pro riders. Small frame and a lot of seatpost is the norm. A tri isn't really "made differently" as much as it's optimized for the aero position - where your bones actually support your form versus depending on core strength.
CCrew is offline   Reply With Quote
Old 06-11-09, 10:42 AM   #3
Life is good
RonH's Avatar
Join Date: Jan 2001
Location: Not far from the Withlacoochee Trail. 🚴🏻
Bikes: 2001 Litespeed Tuscany and 2014 Cannondale SuperSix EVO Hi-Mod
Posts: 17,646
Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 370 Post(s)
Welcome to BF.

This is the Introductions forum.
Ask the folks in the Road Cycling forum or the Triathlon forum for help on the bike and sizing.
The LORD is merciful and gracious, slow to anger, and plenteous in mercy. - Psalm 103:8
RonH is offline   Reply With Quote
Old 06-11-09, 12:20 PM   #4
Ninja don't wear flipflop
king-tony's Avatar
Join Date: Aug 2007
Location: NE TN
Bikes: Specialized S-Works Roubaix SL3, BMC TM01...if it every ships
Posts: 1,443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Agreed, you'll get better response on the road or tri forum. As for frame size, generally speaking, go with the smallest frame size that fits. You can't use top tube length as the standard for measurement and that is why stack and reach are commonly used. Also, if the bike is for TT's you will be wanting a more aggressive position compared to a long distace triathlon position.
king-tony is offline   Reply With Quote
Old 06-12-09, 11:51 AM   #5
Senior Member
hendrick81's Avatar
Join Date: Apr 2008
Location: Sandy Eggo
Bikes: 2006 caad8, 2010 caad9 1, 2011 caad10 4
Posts: 2,127
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Welcome to bike forums...
hendrick81 is offline   Reply With Quote

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 12:11 AM.

  • Ask a Question
    get answers from real people!
Click to start entering your question.