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PostPosted: Tue Jul 11, 2017 5:35 pm 
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Joined: Thu Apr 14, 2016 11:01 am
Posts: 53
Location: France
It's interchangeable but at the moment (seem to change whit the 46/30 integrated spider coming), you have to send the crankset to a dealer who have the tool to do it.


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PostPosted: Tue Sep 05, 2017 12:28 am 
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Joined: Tue Sep 05, 2017 12:21 am
Posts: 2
xeonrs3000 wrote:
I replaced a Shimano compact with a 46/30 FSA Omega (2017) on my wife's road bike.


Hi

Please tell me where did you manage to find one of these?
I've been desperate to find one of these for my Slate 105!

I have a Sugino OX601 46/30 9 speed crankset on an older CX bike and I swear by the set up.

You only really lose the top most ratio compared to bike running a 50/34 - 50-12 is a near enough 46-11.

Cheers and thanks!


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Posted: Tue Sep 05, 2017 12:28 am 


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PostPosted: Tue Jan 09, 2018 4:37 pm 
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Joined: Sat May 21, 2016 12:59 pm
Posts: 414
46/30 and 48/32 chainrings for FC-R9100, FC-9000, FC-R8000, FC-6800, FC-5800

https://absoluteblack.cc/oval-road-chai ... -110-4bcd/

_________________
'


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PostPosted: Tue Jan 09, 2018 5:39 pm 
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Joined: Fri Nov 08, 2013 7:11 pm
Posts: 308
DOval south korea manufactures 30t small chainring for 4 bolt pattern 110bcd chainsets..

https://www.ebay.com/itm/50T-30T-BCD110 ... SwZW5aNfZ8

https://www.ebay.com/itm/46T-30T-BCD110 ... SwZW5aNfZ8


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PostPosted: Tue Jan 09, 2018 8:48 pm 
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Joined: Wed Feb 03, 2010 1:31 am
Posts: 673
Odd I never replied in this thread before since the question being asked applies directly to my setup. Way back in 2007 when I rode PBP, I wanted a road bike with low enough gears to get over the hills/mountains going out to Brest. They use a slightly different route back so you miss the steep long hill on the outbound route. I had a Litespeed Tuscany frame with 10 speed Campagnolo. 12-29 cassette. I used a White Industries triple crankset with 46-30 rings. White triple cranks used 94mm bcd for the outer and middle rings. 25 years ago 94mm bcd was the mountain bike size rings. The inner ring used separate removable spacers. The spacers were not molded, formed into the crank itself, like they are today on most/all triples. So by not putting on the inner ring and spacers, the crankset was identical to a double crank with 94mm bcd. Square taper crankset. I used a 103mm Shimano square taper. Maybe Dura Ace. TA and Stronglight both make 30 tooth rings in 94mm bcd. Stronglight also makes a 29 tooth ring in 94mm bcd. I used 46-30 rings and 12-29 cassette ten speed on PBP. Today I use 48-40 rings from TA and a 12-23 cassette. No climbing around home. But in less than an hour I could have it setup for mountain climbing with 46-29 rings and 12-29 cassette. I have a medium or long cage rear derailleur on the bike. Can't remember exactly which model, Record, Chorus, Centaur, Athena, Veloce. Record carbon 10 speed shifters. Clamp on front derailleur of some Campagnolo model I think.


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PostPosted: Wed Jan 10, 2018 1:01 pm 
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Joined: Wed Mar 15, 2017 5:30 pm
Posts: 367
RussellS wrote:
Odd I never replied in this thread before since the question being asked applies directly to my setup. Way back in 2007 when I rode PBP, I wanted a road bike with low enough gears to get over the hills/mountains going out to Brest. They use a slightly different route back so you miss the steep long hill on the outbound route. I had a Litespeed Tuscany frame with 10 speed Campagnolo. 12-29 cassette. I used a White Industries triple crankset with 46-30 rings. White triple cranks used 94mm bcd for the outer and middle rings. 25 years ago 94mm bcd was the mountain bike size rings. The inner ring used separate removable spacers. The spacers were not molded, formed into the crank itself, like they are today on most/all triples. So by not putting on the inner ring and spacers, the crankset was identical to a double crank with 94mm bcd. Square taper crankset. I used a 103mm Shimano square taper. Maybe Dura Ace. TA and Stronglight both make 30 tooth rings in 94mm bcd. Stronglight also makes a 29 tooth ring in 94mm bcd. I used 46-30 rings and 12-29 cassette ten speed on PBP. Today I use 48-40 rings from TA and a 12-23 cassette. No climbing around home. But in less than an hour I could have it setup for mountain climbing with 46-29 rings and 12-29 cassette. I have a medium or long cage rear derailleur on the bike. Can't remember exactly which model, Record, Chorus, Centaur, Athena, Veloce. Record carbon 10 speed shifters. Clamp on front derailleur of some Campagnolo model I think.
For that matter, the current White Industries VBC cranks will let you have super low gears while keeping a road Q factor. They now have a 30mm spindle option if your bike won't work with square taper.


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