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-   -   Road Bike Conversion from 2x to 1x; Recommendations (https://www.bikeforums.net/road-cycling/1113404-road-bike-conversion-2x-1x-recommendations.html)

patrickgm60 07-02-17 07:04 PM

Road Bike Conversion from 2x to 1x; Recommendations?
 
I want to convert one of my road bikes to a 1x10, for flat rides. I think I want a 42t chain ring, and to keep the 11-23 in the rear. Crank is 105 compact.

Remove shifter and FD, shorten chain, obviously. Can I save the crankarm and simply replace the chain ring? Any particular type/brand of chain ring? Thanks.

gsa103 07-02-17 10:06 PM

That a very limited gear range. Have you actually tried riding with narrow a range?

DrIsotope 07-02-17 10:23 PM

You will at the very least need a 1X chainring. If you have an older 105 with normal 110BCD there are a lot more options, including the excellent quality USAMade chainrings, and of course RaceFace. If you have the 5800, you're in the $$$ territory with Wolftooth. USAMade and absoluteBLACK make 110 4-bolt rings, but only in oval.

JayChadney 07-02-17 10:32 PM

I have a 42t narrow-wide chainring on my 1x Specialized Crux Pro.
11-36 gears and a SRAM XO rear derailleur
https://c1.staticflickr.com/4/3954/3...37ec2f61_k.jpg .
All is SRAM Red (except the XO and chain ring. Pretty sweet set up.
23 in the back would be tough for me - I like to spin vs grind

DrIsotope 07-02-17 10:39 PM

If he's riding on the flats, he won't need anything bigger on the cassette. I do a neighborhood lap quite frequently, 3.5 miles with 120ft spread over two short-ish climbs, and never use anything bigger in the back than a 19T. I do it standing in the 15T.

On a ride with any sort of actual (short) climbs, I would want at very least a 28T in the back. But on the flats only, 23T would be plenty. For strictly flats, I would go bigger than the 42T though-- perhaps a 44 or 46.

patrickgm60 07-03-17 12:16 AM

Thanks for the replies. That Crux is beautiful!

I have the older 105 crankset - 110 BCD, so that USA Made chain ring should work.

02Giant 07-03-17 04:58 PM

QUOTE=JayChadney;19692701]I have a 42t narrow-wide chainring on my 1x Specialized Crux Pro.
11-36 gears and a SRAM XO rear derailleur
.
All is SRAM Red (except the XO and chain ring. Pretty sweet set up.
23 in the back would be tough for me - I like to spin vs grind[/QUOTE]

What did you do with the left brifter with no need for the shift paddle?

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