Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Thu Aug 25, 2016 2:18 am
Recently the board software has been updated and there are some known bugs/failures:
- Avatars are currently not being displayed ✔ FIXED
- Tapatalk connection is currently broken ✔ FIXED
- Avatars cannot be uploaded ✔ FIXED

Please note that we will soon do some changes in WW board template design in case to get a fully mobile/desktop responsiveness board!
If you find more errors please post it here: http://weightweenies.starbike.com/forum/viewtopic.php?f=7&t=139062


All times are UTC+01:00





Post new topic  Reply to topic  [ 4 posts ] 
Author Message
 Post subject: BMC TeamMachine Sizing
PostPosted: Thu Aug 04, 2016 3:22 am 
Offline

Joined: Thu Aug 04, 2016 3:06 am
Posts: 2
Hi all,

I'd like to get some advice on frame sizing for the BMC TeamMachine frame which i can currently get a really, really good deal on. Im torn between the 53 and 55. Everyone seems to say that they run larger than indicated on their website but im not sure. Here are my Competative Cyclist specs;

Your Measurements
Inseam: 84
Trunk: 64.25
Forearm: 34.5
Arm: 63
Thigh: 59.75
Lower Leg: 53
Sternal Notch: 144.25
Total Body Height: 178.5

My current bike is a Giant TCR Advanced in Medium w/ 110mm stem. Top tube is 55.5cm and the way its currently set up the seat is put almost all the way back on the rails with a total reach of 54-55cm (seat tip to handlebars). Im a 26yo athletic guy, moderately flexible and prefer a more "aggressive" fit. The Competative Cyclist recommended specs seem off since they recommend;

The Competitive Fit (cm) Current setup
Seat Tube Range c–c: 54.2 - 54.7 cm
Seat Tube Range c–t: 55.9 - 56.4 cm
Top Tube Length: 53 - 53.4 cm 55.5cm
Stem Length: 11.2 - 11.8 cm 11cm
BB–Saddle Position: 71.7 - 73.7 cm 72.5-73cm
Saddle Handlebar: 52.1 - 52.7 cm 54.5 cm
Saddle Setback: 5.8 - 6.2 cm 6-6.5cm


I think its sizing stuff a bit small since at a saddle to HB of 54.5 my shoulder angle is just under 90* which means it would be even less with a shorter bike no? Maybe I've been riding too stretched out all this time? It always seems that people around my area are sized way to small on their bike with too upright of a position. My back angle is about 40* which is comfortable enough.

Anyway Id love to hear some options from people my size or anyone would might be able to offer some solid advice!

Thanks


Top
   
PostPosted: Thu Aug 04, 2016 3:30 am 
Offline

Joined: Thu Mar 31, 2016 10:32 am
Posts: 170
Compare stack, reach, and make sure the seat tube angle is no greater than on your current bike.

Top tube is a complete red herring if you don't normalize seat tube angles. That fact that your saddle is slammed back does indicate there may be an issue with your fit. It could be right, but if anything is at an extreme it raises red flags.

_________________
[6.6kg of no carbon fiber]
[2lo8.wordpress.com]
Your one-stop source for information and reviews on cheap eBay bike junk.


Top
   
PostPosted: Sun Aug 07, 2016 4:13 am 
Offline

Joined: Thu Aug 04, 2016 3:06 am
Posts: 2
2lo8 wrote:
Compare stack, reach, and make sure the seat tube angle is no greater than on your current bike.

Top tube is a complete red herring if you don't normalize seat tube angles. That fact that your saddle is slammed back does indicate there may be an issue with your fit. It could be right, but if anything is at an extreme it raises red flags.



Thanks for the reply! Yeah so Ive quickly found out regarding stack, reach, ST angles etc which i didnt really look at for my first bike. I think my current bike would "fit" me better with a setback seatpost which would bring the seatpost clamp into the middle of the rails. The way the seat is now has led me to think larger sizing (top tube) but stack might become to high since i currently run about 2cm of spacers. I could definitely use a professional fit to see where Im at. The problem is now that the shop only has the 55cm in stock for $1999 which is a killer deal.


Top
   
PostPosted: Wed Aug 10, 2016 4:18 am 
Offline

Joined: Thu Mar 31, 2016 10:32 am
Posts: 170
The position of the seat rails is purely a function of the seat itself, the seatpost setback, and the seat tube angle. It has virtually nothing to do with reach, size, top tube, except for the fact that different size bikes have different sea t tube angles.

_________________
[6.6kg of no carbon fiber]
[2lo8.wordpress.com]
Your one-stop source for information and reviews on cheap eBay bike junk.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 4 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. BMC Timemachine (TMR) vs Teammachine

in Road

Ste_S

6

867

Sun Feb 21, 2016 5:19 pm

clarkson View the latest post

There are no new unread posts for this topic. Bike Sizing (Cervelo) Help

in Road

Ste_S

7

495

Wed Mar 16, 2016 2:14 am

mimason View the latest post

There are no new unread posts for this topic. Attachment(s) MET Manta/Rivale sizing

in Road

ultyguy

8

846

Thu Feb 18, 2016 7:13 pm

ultyguy View the latest post

There are no new unread posts for this topic. Attachment(s) Canyon Aeroad sizing

in Road

litw

8

2735

Tue Oct 13, 2015 9:05 pm

BernieV View the latest post

There are no new unread posts for this topic. Sizing Madone 2016

in Road

Pelox

13

1086

Fri Jun 03, 2016 3:44 pm

CanadianBiker View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: Gearjunkie, Yahoo [Bot] and 22 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:  
Powered by phpBB® Forum Software © phpBB Limited