HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Articles FAQ Contact About




Post new topic Reply to topic  [ 6 posts ] 
Author Message
PostPosted: Sat Dec 29, 2012 5:41 am 
Offline

Joined: Wed Sep 13, 2006 10:30 pm
Posts: 22
anyone have the stack and reach numbers for a 2011 tarmac. I'm currently on a 56 Litespeed Icon and was thinking if a 54 cm tarmac would fit me. Is the SL4 going to be too low? I am 179cm with a 33 inch inseam.


Top
 Profile  
 
Posted: Sat Dec 29, 2012 5:41 am 


Top
  
 
PostPosted: Sat Dec 29, 2012 6:51 am 
Offline

Joined: Sun Jul 10, 2011 9:03 am
Posts: 292
SL4 geo according to:
http://www.pacosbike.com/product_info.p ... s_id=36066" onclick="window.open(this.href);return false;
stack and reach 543 and 387 for 54

_________________
r o y g b i v


Top
 Profile  
 
PostPosted: Sat Dec 29, 2012 7:55 am 
Offline

Joined: Wed Jun 01, 2011 7:53 am
Posts: 312
I think the 2011 tarmac has a taller HT.


Top
 Profile  
 
PostPosted: Tue Jan 01, 2013 3:25 am 
Offline

Joined: Wed Sep 13, 2006 10:30 pm
Posts: 22
is stack/reach more important or top tube length. the difference between TT lengths is 17mm between the 54 and 56 but the reach difference is only 8mm. The shops says its a difference of a 2 cm stem between the 2 bikes. I'm currently riding a 56cm Litespeed Icon with a stack of 551 and reach of 391. After adding the Chris King headset it seems the 56 cm Tarmac is still lower than my bike. Which bike would fit most closely?


Top
 Profile  
 
PostPosted: Tue Jan 01, 2013 4:46 am 
Offline
Shop Owner

Joined: Sat Jun 13, 2009 4:02 am
Posts: 1975
Location: NoVA/DC
Stack/reach tells you more than just top tube length. Add seat tube angle to top tube lengths and you have similar tools. as with any tool, you have to know how to use it.
I haven't checked the sizes of the sl4, but I assume the seat tube angles are close or equal. Then, as with any bike, when the head tube gets taller, the reach measurement is naturally shorter. If the head tube angle was 90degrees, then stack would not affect reach. so you are looking for a certain reach measurement, at a certain stack measurement. Having the right reach at the wrong stack is NOT the same.
With top tube length, a frame can change seat tube angle, affecting overall reach of the bike without one realising it. And it does not tell you how high/low the bars can be.


Top
 Profile  
 
PostPosted: Tue Jan 01, 2013 12:57 pm 
Offline

Joined: Sun Jul 10, 2011 9:03 am
Posts: 292
Seat position is a different measurement from stack and reach.
You always set your seat to the same position in relation to the BB, or you should. You have to select a seat post with appropriate setback to allow your preferred position so assuming you will be able to achieve that position (highly unlikely that you wont be able to), that leaves stack and reach as the appropriate variables to consider for frame fit regardless of seat tube angle.

_________________
r o y g b i v


Top
 Profile  
 
Posted: Tue Jan 01, 2013 12:57 pm 


Top
  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 


Who is online

Users browsing this forum: Baidu [Spider], Bing [Bot], conti, darnellrm, Google Adsense [Bot], rma and 38 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Attachment(s) S-Works Tarmac Stack & Reach

[ Go to page: 1, 2, 3 ]

in Road

Barters

41

1873

Sun Oct 12, 2014 7:35 pm

highdraw View the latest post

There are no new unread posts for this topic. Stack & Reach definition

in Road

Lightweenie

13

633

Sat Oct 25, 2014 5:28 pm

WheresWaldo View the latest post

There are no new unread posts for this topic. stack-reach comparison of 2014-2015 road frames

[ Go to page: 1, 2 ]

in Road

djconnel

22

1533

Sun Aug 31, 2014 3:47 pm

djconnel View the latest post

There are no new unread posts for this topic. shimano r 320 stack height?

in Road

mdeth1313

1

199

Fri Aug 01, 2014 1:37 pm

BikeTart View the latest post

There are no new unread posts for this topic. REACH... does it matter? Colnago v Cervelo (and others)

in Road

Rodecki

9

1273

Sun Sep 28, 2014 3:01 pm

highpowernut View the latest post


It is currently Mon Nov 24, 2014 1:54 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB