Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About
It is currently Fri Apr 29, 2016 5:12 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Sat Nov 03, 2012 7:02 pm 
Offline

Joined: Mon Dec 14, 2009 6:26 pm
Posts: 839
Thinking of trying a 50/36 compact chainring combination. Does a 11-27T cassette with a 50/36 chainring give you a similar range to a 11-25T cassette with 50/34 chainring?

Any comments would be much appreciated.


Top
   
PostPosted: Sat Nov 03, 2012 7:28 pm 
Offline

Joined: Fri Dec 24, 2010 9:37 pm
Posts: 783
Location: it's raining, it must be uk
36/27 is slightly higher (harder) than 34/25, and will have wider spacing on the larger sprockets, i'd prefer the 34/25 combo


Top
   
PostPosted: Sat Nov 03, 2012 7:32 pm 
Offline

Joined: Wed Jan 05, 2011 8:05 am
Posts: 529
Location: Geneva, Switzerland
Try this
http://www.ritzelrechner.de

it's very close. But the 36 will be more usable at the high end (36/13-14-15), I find one shifts the chainrings a bit less.


Top
   
PostPosted: Sat Nov 03, 2012 7:56 pm 
Offline

Joined: Tue Oct 23, 2012 5:02 pm
Posts: 63
sungod wrote:
36/27 is slightly higher (harder) than 34/25, and will have wider spacing on the larger sprockets, i'd prefer the 34/25 combo

This is wrong.

34/25=1.36>1.33=36/27


Top
   
PostPosted: Sat Nov 03, 2012 9:08 pm 
Offline

Joined: Fri Dec 24, 2010 9:37 pm
Posts: 783
Location: it's raining, it must be uk
^^^this

oops!


Top
   
PostPosted: Mon Nov 05, 2012 3:29 pm 
Offline

Joined: Wed Sep 26, 2007 1:57 pm
Posts: 7870
Location: San Francisco, CA
I like one better: 46-36. The front shift is much closer to what I want with a front shift. 46-34 is also very good. I really don't miss a 50-11 except in extreme cases. 46-11 is still quite big for my girly-legs.

_________________
http://djconnel.blogspot.com/
Fuji SL/1


Top
   
PostPosted: Mon Nov 05, 2012 5:03 pm 
Offline

Joined: Thu Apr 01, 2010 10:24 am
Posts: 595
Yeah djconnel has the right idea. Very few people need the big large chainring unless you nail it down hills or you're a fast sprinter. I run 48/38 or 49/39 at the front and the shifting is superb. It gives me an advantage in that I can very quickly change down into the smaller chainring without spinning out and losing power while I find the right gear at the back - I just flick it one gear down at the back and I've got pretty much the same gear as before.

I never find I run out of gears with 48 x 11, however I do prefer climbing where I'm not using the big ring much. When I'm riding on the flat I find the gears I use most of the time are nicely in the middle of the cassette.

And sorry for going off topic, but I'd say to OP that the 50/36 would be better as there's less of a jump at the front - 50/34 is a huge jump (the most that most derailleurs can take), and the shifting will suffer when it matters. Even better would be 48/36.


Top
   
PostPosted: Mon Nov 05, 2012 11:26 pm 
Offline

Joined: Sun Apr 01, 2007 10:50 pm
Posts: 199
djconnel wrote:
I like one better: 46-36. The front shift is much closer to what I want with a front shift. 46-34 is also very good. I really don't miss a 50-11 except in extreme cases. 46-11 is still quite big for my girly-legs.


Yup. Me too. Currently running a 34/46 (because that's what I had), and you can go pretty darn fast in the 46/11.

_________________
GRAVELBIKE.COM - ride everything


Top
   
PostPosted: Tue Nov 06, 2012 1:10 am 
Offline

Joined: Sun Jun 10, 2012 1:11 am
Posts: 685
glad i found this post...

would these type of combo be good for climbing only or even on the flats? cuz i thought 53/11 would be quick, but this weekend, i found my legs weren't all there to ride fast enough.


Top
   
PostPosted: Tue Nov 06, 2012 4:41 am 
Offline

Joined: Wed Aug 01, 2012 10:20 am
Posts: 27
A website I find really helpful is www.bikecalc.com and It is really good for any calculation you may have. You can find all the ratios, speeds, cadence at speed and it gives you a highly comprehensive table to sort it all out.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 10 posts ] 

All times are UTC+01:00


Who is online

Users browsing this forum: AZR3, burglarboycie, CanadianBiker, crn, Exabot [Bot], Google Adsense [Bot], IhmeKameli, kwm24, ms6073, Yahoo [Bot] and 35 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