Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Road crankset for 46/30 rings

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Road crankset for 46/30 rings

Old 02-06-19, 07:32 PM
  #1  
oldschoolbike
Member
Thread Starter
 
Join Date: Oct 2017
Location: Ottawa, ON, Canada
Posts: 49

Bikes: 1974 PX-10E sold, 1977 Witcomb stolen, 1980 Roberts 1 speed, 1987 Cyclops 3 x 6 friction, 2010 Masi Commuter 1 speed, 2017 Ribble 525 2 x 10 with Ergos, I am un-ashamed of my triple crank.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Road crankset for 46/30 rings

I am finding that a 34-50 compact road crankset gives me an overall range that is too high. It seems that a 46-30 would be just about perfect, ie give me low enough lows, no gears higher than I need, and most of all, a big ring sweet spot in the middle of a typical 13-26 or 13-29 10-speed cassette. I really prefer square taper BBs for a few reasons, and I want a modern crank profile with the width at the axle narrower than at the pedals, for ankle clearance. Shifting aids on the outer ring

are required. Cost and ring availability in the future are considerations. Bonus, it would be available in silver. Any suggestions?
oldschoolbike is offline  
Old 02-06-19, 07:49 PM
  #2  
trailangel
Senior Member
 
trailangel's Avatar
 
Join Date: Feb 2014
Location: Pasadena, CA
Posts: 3,481

Bikes: Schwinn Varsity

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 1185 Post(s)
Likes: 0
Liked 7 Times in 6 Posts
https://www.compasscycle.com/shop/co...double-cranks/
trailangel is offline  
Old 02-06-19, 07:52 PM
  #3  
Marcus_Ti 
Frozen Solid.
 
Marcus_Ti's Avatar
 
Join Date: Sep 2014
Location: Lincoln, Nebraska
Posts: 4,540

Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1857 Post(s)
Liked 21 Times in 13 Posts
What is your budget? FSA's Vero Pro ticks your boxes, so does IRD's Defiant,Rene Herse cranks, also White's VBC cranks. All I believe are JIS taper. Ordered from cheapest to most expensive.

NOTE: FSA's is not available in silver.
Marcus_Ti is offline  
Old 02-06-19, 08:31 PM
  #4  
unterhausen
Randomhead
 
Join Date: Aug 2008
Location: Happy Valley, Pennsylvania
Posts: 18,017
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Liked 15 Times in 15 Posts
I'm waiting for this size to go mainstream. Until then, I'm using a 46/34. I have a 36 tooth in the back. I am really happy with the 46 large chainring.
unterhausen is offline  
Old 02-06-19, 08:36 PM
  #5  
Marcus_Ti 
Frozen Solid.
 
Marcus_Ti's Avatar
 
Join Date: Sep 2014
Location: Lincoln, Nebraska
Posts: 4,540

Bikes: Roadie: Seven Axiom Race Ti w/Chorus 11s. CX/Adventure: Carver Gravel Grinder w/ Di2

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 1857 Post(s)
Liked 21 Times in 13 Posts
Originally Posted by unterhausen View Post
I'm waiting for this size to go mainstream. Until then, I'm using a 46/34. I have a 36 tooth in the back. I am really happy with the 46 large chainring.
I presume you mean the Big 3 selling it? I think everyone else does, ATM.

Campagnolo ofc has publicly written off ever selling bigger cassettes ("we're a racing parts company")...so smaller cranks would be off the table as well in their logic.
Marcus_Ti is offline  
Old 02-06-19, 08:56 PM
  #6  
C9H13N
Senior Member
 
Join Date: Dec 2012
Location: North Seattle
Posts: 119

Bikes: Cervelo S1 2009

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Sugino OX 601/901.
C9H13N is offline  
Old 02-06-19, 11:29 PM
  #7  
Canker
Senior Member
 
Join Date: Aug 2005
Posts: 1,241
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 160 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Sub-Compact Gearing with Wide Ratio Cassette
Thread about this subject over in the cyclocross section.
Canker is offline  
Old 02-06-19, 11:41 PM
  #8  
wgscott
Atrophied Member
 
wgscott's Avatar
 
Join Date: Jul 2013
Location: The Timbers of Fennario (CL77)
Posts: 4,588

Bikes: Steel

Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 93 Times in 55 Posts
Originally Posted by Marcus_Ti View Post
I presume you mean the Big 3 selling it? I think everyone else does, ATM.

Campagnolo ofc has publicly written off ever selling bigger cassettes ("we're a racing parts company")...so smaller cranks would be off the table as well in their logic.
I have an Athena 11-speed triple. Smallest ring is 30T.
wgscott is offline  
Old 02-06-19, 11:44 PM
  #9  
wgscott
Atrophied Member
 
wgscott's Avatar
 
Join Date: Jul 2013
Location: The Timbers of Fennario (CL77)
Posts: 4,588

Bikes: Steel

Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 2366 Post(s)
Liked 93 Times in 55 Posts
Originally Posted by unterhausen View Post
I'm waiting for this size to go mainstream.
Sugino, Rene Herse, White Industries, IRD, FSA all offer 46/30T now.
wgscott is offline  
Old 02-07-19, 12:31 AM
  #10  
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 41,020

Bikes: 8

Mentioned: 183 Post(s)
Tagged: 0 Thread(s)
Quoted: 6591 Post(s)
Likes: 0
Liked 70 Times in 63 Posts
OR.... by mainstream , do you wish bike factories, and Importer - product managers start specifying a huge batch order of bicycles with the cranks you liked?

prepared to wait for a while?
fietsbob is offline  
Old 02-07-19, 05:52 AM
  #11  
FlMTNdude
Senior Member
 
Join Date: Mar 2017
Location: Gainesville FL
Posts: 359

Bikes: 1988 Panasonic

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 72 Post(s)
Likes: 0
Liked 7 Times in 6 Posts
Running 48/34 and 14/28 rear. Though really could use a 50 front and a 12 or 13 small in the rear.
FlMTNdude is offline  
Old 02-07-19, 06:40 AM
  #12  
dsaul
Senior Member
 
Join Date: Jan 2013
Posts: 976
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 211 Post(s)
Liked 8 Times in 7 Posts
Originally Posted by unterhausen View Post
I'm waiting for this size to go mainstream. Until then, I'm using a 46/34. I have a 36 tooth in the back. I am really happy with the 46 large chainring.
Its not mainstream, as in the big 3, but FSA has a whole adventure series of subcompact cranksets with a 46/30 option.
dsaul is offline  
Old 02-07-19, 07:56 AM
  #13  
TimothyH
- Soli Deo Gloria -
 
TimothyH's Avatar
 
Join Date: Aug 2015
Location: Northwest Georgia
Posts: 13,567

Bikes: 2018 Rodriguez Custom Fixed Gear, 2017 Niner RLT 9 RDO, 2015 Bianchi Pista, 2002 Fuji Robaix

Mentioned: 210 Post(s)
Tagged: 0 Thread(s)
Quoted: 6098 Post(s)
Liked 129 Times in 89 Posts
There is a thread on 46/30 subcompact cranksets with several hundred posts.

Anyone using a 46/30T crank on a road bike?

Everything you want to know.


-Tim-
TimothyH is offline  
Old 02-07-19, 11:22 AM
  #14  
u235
Senior Member
 
u235's Avatar
 
Join Date: Mar 2017
Posts: 834
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 289 Post(s)
Likes: 0
Liked 8 Times in 6 Posts
Not square like OP watns but my 0.02 cents anyway..
I'm interested in the FSA Omega 46/30 165 option but I am hung up on the 19mm spindle and the limited selection of BB choices, basically one option and it's roughly twice the price of a proven HT2 BB you can get one of those just about anywhere. I had an Omega 170 compact for about 2500 miles with the FSA 19mm BB and it was fine and took a beating and still in good shape when I removed it but...

Last edited by u235; 02-07-19 at 11:32 AM.
u235 is offline  
Old 02-07-19, 02:23 PM
  #15  
MattTheHat 
Senior Member
 
MattTheHat's Avatar
 
Join Date: Aug 2018
Location: Allen, TX
Posts: 438

Bikes: '19 Canyon Endurace, '18 Specialized Diverge Comp, '19 Trek X-Caliber 7

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 112 Post(s)
Liked 9 Times in 7 Posts
The Praxis Alba is available in 48/32 which is close. I have that setup with an 11-speed 11-32 on my Diverge and really like it. Very rarely I do wish it was a 50 tooth on the big ring, but not very often.

-Matt
__________________
MattTheHat is offline  
Old 02-07-19, 03:59 PM
  #16  
hokiefyd
Senior Member
 
Join Date: Feb 2017
Location: Northern Shenandoah Valley
Posts: 2,086

Bikes: 2018 Redline Zander, 2018 Giant Roam 2, 2015 Trek Verve 3, 1997 Trek 750, 1969 Peugeot PO-18

Mentioned: 24 Post(s)
Tagged: 0 Thread(s)
Quoted: 708 Post(s)
Liked 15 Times in 15 Posts
OP, does it have to be new? There are hundreds (or thousands) of cranksets on eBay for pretty reasonable prices. Silver is the color of vintage. I bought what appears to be an NOS (or VERY cleaned up, with no shifting marks!) Sugino Impel MTB crankset for 25 bucks. For your application, you could look for standard road triples, with a 74mm BCD inner pattern and a 110mm BCD outer pattern. You can do like I am and make a double out of a triple. I have a Sugino 74mm/110mm crankset that was originally a 30-40-50 triple and I replaced the 30 with a 26, I will keep the 40, and will replace the 50 with a 42 or 44 sized chain guard. So I'll have a 26-40 double with a pants cuff protector. PM me if you're interested in my old 30 tooth 74mm BCD ring.

Visual reference of my Sugino 30-40-50 before changing anything up on it. This may work well for your application.

IMG_20180612_181428991 by jnjadcock, on Flickr

Last edited by hokiefyd; 02-07-19 at 04:03 PM.
hokiefyd is offline  
Old 02-08-19, 04:11 PM
  #17  
jlaw
Senior Member
 
Join Date: Mar 2018
Posts: 576

Bikes: 2015 Spec. AWOL Elite, 2007 Spec. Roubaix Elite, 2003 Spec. Big Hit 2, 1998 VooDoo Zobop, 1985 Trek 410, 1984 Trek 620

Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 205 Post(s)
Likes: 0
Liked 25 Times in 14 Posts
Originally Posted by oldschoolbike View Post
I am finding that a 34-50 compact road crankset gives me an overall range that is too high. It seems that a 46-30 would be just about perfect, ie give me low enough lows, no gears higher than I need, and most of all, a big ring sweet spot in the middle of a typical 13-26 or 13-29 10-speed cassette. I really prefer square taper BBs for a few reasons, and I want a modern crank profile with the width at the axle narrower than at the pedals, for ankle clearance. Shifting aids on the outer ring

are required. Cost and ring availability in the future are considerations. Bonus, it would be available in silver. Any suggestions?
The 46-30 option for a 'road' crank is still a fairly expensive set-up from what I've seen on the internet - have been watching this for a couple years. I agree with you that a 'compact' road crank is too tall.

Have you considered a 2x10 MTB set-up? You can use a 39-26 crank (for example, SRAM x5 GXP) with a suitable 10 speed cassette that provides the gearing that you are looking for. I have done this on an 'all-road' bike that I fitted-up using a vintage frame. With the 39-26 crank I used a 11-32 10 speed cassette. I didn't worry about chain line and haven't had any issues related.

The x5 crankset and BB will cost around $125 or so assuming that you can get a BB for your bike that fits this crank. I ride the 39T 'Goldilocks' ring (for me) most of the time but have the 26T for steep hills.

Here's the crank for $79.

https://www.universalcycles.com/shop...BoCyJMQAvD_BwE

jlaw is offline  
Old 02-08-19, 04:15 PM
  #18  
oldschoolbike
Member
Thread Starter
 
Join Date: Oct 2017
Location: Ottawa, ON, Canada
Posts: 49

Bikes: 1974 PX-10E sold, 1977 Witcomb stolen, 1980 Roberts 1 speed, 1987 Cyclops 3 x 6 friction, 2010 Masi Commuter 1 speed, 2017 Ribble 525 2 x 10 with Ergos, I am un-ashamed of my triple crank.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks everybody. Lots to look in to. It seems many new cranksets designed for lower gearing are decidedly vintage in style, Must be baby-boomers driving the market yet again!

I think the "triple as a double" approach suggested by hokiefyd is the sensible way to try it out. Among other things, I want to fiddle with chain line so that the system will work well as a 1x plus bail-out. I wouldn't install a guard, just use single ring bolts. Ultimately I might go for the White Industries crankset, or hope to get lucky and land a 94mm BCD crankset in 170mm from eBay and get some new TA rings to fit from Peter White.
oldschoolbike is offline  
Old 02-12-19, 04:05 AM
  #19  
Road Fan
Senior Member
 
Road Fan's Avatar
 
Join Date: Apr 2005
Location: Ann Arbor, MI
Posts: 14,068

Bikes: 1980 Masi, 1984 Mondonico, 1984 Trek 610, 1980 Woodrup Giro, 2005 Mondonico Futura Leggera ELOS, 1967 PX10E, 1971 Peugeot UO-8

Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 746 Post(s)
Liked 0 Times in 0 Posts
Originally Posted by wgscott View Post
I have an Athena 11-speed triple. Smallest ring is 30T.
wgscott, they do indeed make that, and it seems non-racing, but it is a triple. The 46/30 needs a double platform, and with bolt circles that can handle the smaller rings. You can configure it on a triple arm with the 30 inner and 46 at middle, but the big ring position is empty. Resulting issue is that the Q is that of the triple, not that of a double.
Road Fan is offline  
Old 02-12-19, 06:30 AM
  #20  
blamester
Blamester
 
Join Date: Dec 2011
Location: Ireland
Posts: 460

Bikes: Peugeot teamline

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 73 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
Any reason why you can't change the cassette to match the rings you have.
By moving the cassette range up a tooth or two.
Might take two cassettes mixed to get it right.
I have removed the 11/12/13 from my 10 speed cassette simply because I don't use them.
14/28 7 speed with 10 speed spacing.
No chain rub in any combo.
blamester is offline  
Old 02-13-19, 09:32 AM
  #21  
jonafd17
Senior Member
 
Join Date: Mar 2017
Location: NC
Posts: 56
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 21 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Originally Posted by blamester View Post
I have removed the 11/12/13 from my 10 speed cassette simply because I don't use them.
14/28 7 speed with 10 speed spacing.
Blamester, I've thought of doing this with a 11-32, 8 speed cassette and just making it a 7 speed with 13-32 cogs (since Shimano stopped making the 14-32 7 speed cassette). Did you have to replace the 14 with an outside 14 to keep the cassette lock ring in place? I've always wondered if that was really necessary. Will it loosen when you coast? Can you locktite it in place? Etc.

Also, did you place spacers on the inside or outside of the smaller cassette to recenter the 7 speed cassette?

Thanks!
jonafd17 is offline  
Old 02-13-19, 09:36 AM
  #22  
blamester
Blamester
 
Join Date: Dec 2011
Location: Ireland
Posts: 460

Bikes: Peugeot teamline

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 73 Post(s)
Likes: 0
Liked 4 Times in 3 Posts
I don't want to derail this thread so p.m on the way
blamester is offline  
Old 02-14-19, 11:28 PM
  #23  
oldschoolbike
Member
Thread Starter
 
Join Date: Oct 2017
Location: Ottawa, ON, Canada
Posts: 49

Bikes: 1974 PX-10E sold, 1977 Witcomb stolen, 1980 Roberts 1 speed, 1987 Cyclops 3 x 6 friction, 2010 Masi Commuter 1 speed, 2017 Ribble 525 2 x 10 with Ergos, I am un-ashamed of my triple crank.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
OP here. I have several reasons to not want to go past 29T on the cassette. I can just make it up the biggest hills here now with my 13-26 and 50-34 and have a 13-29 awaiting installation, but I want some reserve capacity and some path forward into my dotage. Sooner or later I will stop pedalling down hills and won't miss anything over about 85 inches anyway. 46-30 would set me up for at least another 8 years, and after that I could see going even lower.


Maybe somebody will introduce an affordable and flexible option that is not vintage style with dead straight cranks (Velo-Orange and SunXCD TA copies and IRD Campy style cranks all take silly-long BB axles and offer no heel clearance) or maybe the Sugino OX601 or IRD Lobo will be be upgraded to square taper. That would be ideal. One can hope. In the meantime I think it will be a Sugino XD2 triple (110/74mm BCD) with the outer ring absent. I suspect the Q-factor penalty matters little to me, given that I ride a triple and a double and don't notice a tread width difference. I would prefer to start with a Campy Racing Triple or less costly version of such, but I am not sure about the ongoing supply of chainrings in 135mm BCD. In the meantime I am collecting pictures of converted triples. None are attractive, and some are remarkably unattractive.
oldschoolbike is offline  
Old 02-16-19, 04:20 PM
  #24  
ThermionicScott 
hungry
 
ThermionicScott's Avatar
 
Join Date: Aug 2011
Location: CID
Posts: 18,193

Bikes: 1991 Bianchi Eros, 1964 Armstrong, 1988 Diamondback Ascent, 1988 Bianchi Premio, 1987 Bianchi Sport SX, 1980s Raleigh mixte (hers)

Mentioned: 63 Post(s)
Tagged: 0 Thread(s)
Quoted: 1914 Post(s)
Liked 20 Times in 19 Posts
I wouldn't hold my breath for a square-taper option that is not also vintage-styled. Seems like the vast majority of buyers who want one aspect want the other.
__________________
Originally Posted by chandltp View Post
There's no such thing as too far.. just lack of time
Originally Posted by noglider
People in this forum are not typical.
RUSA #7498
ThermionicScott is offline  

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.