52/34 Gear Combination

Discuss light weight issues concerning road bikes & parts.
Marin
Posts: 2567
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

The smaller chainring contributes nothing to shifting, so there should be no problem.

A friend of mine runs a round big ring and an oval small one, seems to work ok.

Deveron53
Posts: 16
Joined: Fri Nov 15, 2013 9:50 pm

by Deveron53

I've been using Rotor cranks with a 52T and 34T with a Dura Ace 11-25 rear cassette. I use Sram Force Yaw FD which helps with allowing me to stay in the big ring a lot more. I only use the 34T when I absolutely have to. I use a short cage RD and initially had some trouble shifting back up to the big ring from the small but since tweaking the FD setup it's worked perfectly. I may go down to a 50T as I think the 52T is overkill!

by Weenie


sib
Posts: 82
Joined: Mon Jun 15, 2015 2:03 am

by sib

Marin wrote:I also ran a Shimano Ultegra 6800 with a 46 big ring previously.


Ah, that's good to know - I'm running Ultegra 6800 at the moment.

Philbar72
Posts: 137
Joined: Tue Sep 17, 2013 9:47 am

by Philbar72

When I had my rotor 3d24 power2 max, I used to run 54/38 for flat days, 51/35 for hilly days. A 35tooth chainring is great cos you can still toodle along at 22mph on the flat in 35/12

Should never have got rid of that…

Marin
Posts: 2567
Joined: Wed Jan 22, 2014 11:48 am
Location: Vienna Austria

by Marin

Deveron53 wrote:52T [...] 11-25 [...] only use the 34T when I absolutely have to


Any hills where you live? =0

Deveron53
Posts: 16
Joined: Fri Nov 15, 2013 9:50 pm

by Deveron53

Marin wrote:
Deveron53 wrote:52T [...] 11-25 [...] only use the 34T when I absolutely have to


Any hills where you live? =0


Yes, Eastern Scotland!

What I meant was, I tend to stay in my big ring a lot and only downshift when I know a hill is coming up. I don't like shifting with a FD. I find a 34/25 is just enough to get me up the steepest hills we have around here. The Sram Yaw FD is very good at allowing me to use the first 9 speeds with ease and the last 2 speeds with caution. If I lived somewhere flat I'd probably go for a single 50T with 11/28.

scottmmw
Posts: 98
Joined: Wed Nov 11, 2015 10:31 am

by scottmmw

Works fine.

Changed my 52/36 to 52/34 for trip to Pyrenees with 11/28 casette

morganb
Posts: 437
Joined: Wed Mar 15, 2017 5:30 pm

by morganb

Philbar72 wrote:When I had my rotor 3d24 power2 max, I used to run 54/38 for flat days, 51/35 for hilly days. A 35tooth chainring is great cos you can still toodle along at 22mph on the flat in 35/12

Should never have got rid of that…

Which rings were you using? TA?

Philbar72
Posts: 137
Joined: Tue Sep 17, 2013 9:47 am

by Philbar72

Ta rings, yes.

User avatar
havana
Posts: 341
Joined: Tue Jan 09, 2007 5:04 pm

by havana

People in need of a 34 will never need a 52.

This is a solution for a problem that doesn't exist.
Most "innovations" in cycling are solutions for non-existing problems.

GambadiLegno
Posts: 67
Joined: Sun Feb 28, 2016 10:26 am
Location: Spain

by GambadiLegno

That's not true, I need both.

glepore
Posts: 983
Joined: Thu Mar 28, 2013 4:42 pm
Location: Pa USA

by glepore

havana wrote:People in need of a 34 will never need a 52.

This is a solution for a problem that doesn't exist.

Nope. Actually the opposite, big hills require both bigger downhill gears and smaller uphill.
Cysco Ti custom Campy SR mechanical (6.9);Cannondale SS Evo Di2 7970 (5.79); Willier Cento Uno Air Di2 9070 (7.0); C40 Mk2 DA 7800 ; Anvil Custom steel Etap;1996 Colnago Technos Record

jih
Posts: 81
Joined: Fri Jan 29, 2016 12:54 pm

by jih

I've tried this combination. It worked but I hated it.

I found I was always in the low end of the big ring, or the high end of the small ring. Chain crossed most of the time.

And then it was difficult in a group to shift the front and not throw the group's rhythm off because i'd have to make 3 or 4 shifts at the back to match it.

tadrums
Posts: 88
Joined: Tue Jul 11, 2006 6:41 am

by tadrums

52/34 is not w/o compromise as your experience points out. Yet, I've found the necessary rear compensatory "down shift" when going into big ring worth the benefit of the 34 on the steep hills where I live. Crossed chain has not been an issue.

jih wrote:I've tried this combination. It worked but I hated it.

I found I was always in the low end of the big ring, or the high end of the small ring. Chain crossed most of the time.

And then it was difficult in a group to shift the front and not throw the group's rhythm off because i'd have to make 3 or 4 shifts at the back to match it.
TA

by Weenie


jih
Posts: 81
Joined: Fri Jan 29, 2016 12:54 pm

by jih

tadrums wrote:Crossed chain has not been an issue.


I don't know how it can not be, but happy it works for you. With this combo and not cross-chaining you must be riding either fast or slow all the time and not much at medium speed.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post