Considering a 1x10 Road Setup

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HeluvaSkier
Posts: 191
Joined: Thu Sep 17, 2009 5:38 pm

by HeluvaSkier

Hi,
I'm toying with building up an older Chinese FM015 ISP frame as a 1x10 SRAM setup using some spare components I have lying around. The plan is to use a SRAM Force BB30 or SRAM S900 BB30 crank set. What are some things I should watch out for in terms of chain line and whether I use an inner versus outer ring?

This should be a fun little project. I just recently wet sanded the frame, bringing it down to 1010g without any hardware (I'll likely repaint it though). Using what I have in the basement it should land around 6550g for the build, but I may try to bring it closer to 6300g with a few low cost purchases.

Cheers.

dvdslw
Posts: 75
Joined: Sun Nov 03, 2013 3:13 am

by dvdslw

I like the idea of a 1x setup. An ideal setup for me would be a 52 front ring with an 11-32 rear cassette. Right now I'm running a 53/39 front with a 12 -25 rear and only have to switch to the small ring a few times during my usual routes and could do without the small ring if it wasn't there.

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gospastic
Posts: 261
Joined: Tue Jun 08, 2010 4:58 am
Location: Portland

by gospastic

I had a bike built up with 1x11 for this past season, first with a wolftooth 52t, then with a SRAM 52t. 11-28 in the back. Worked well, I had the chainring on the outside for both rings. SRAM ring has slightly better chainline due to its built in offset.

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djconnel
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Location: San Francisco, CA
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by djconnel

For 10 speed and a 52 in front I'd definitely take a 12-32 over 11-. In fact I'd do the 12-32 with a 48 front. That's still a big enough gear but with tighter spacing and something low for real climbs.


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HeluvaSkier
Posts: 191
Joined: Thu Sep 17, 2009 5:38 pm

by HeluvaSkier

I am actually going to go with a 46t front and 12-27 in the back. I'll ride the bike primarily in the early season and off season, as well as when I'm riding with my fiancee... so I need more middle than anything else really. Plus where I live is pancake flat and I am built more like a climber... so I'm not putting down much power. I'll try the setup as an outer ring first and see how it lines up.

FatLaurie
Posts: 1
Joined: Thu Sep 03, 2015 9:36 pm

by FatLaurie

I thought no-one was ever going to ask:

By no means a weenie, but running 46t with an 11-36 SLX cassette. Chain is KMC X10.
Mech is a Tiagra 4600 short cage, shifter is a Dura-Ace SL-BS79 shoved into the RH end of a pair of bullhorns.
It's steel from 1990 and weighs a whisker over 10kg (see, I told you).

Maths tells me the range is equivalent to 50/34 with 12-27 on the back, but with no duplications and one movement of one lever to get any ratio.

Chainline is set to midway between sprockets 4 and 5 (counting from the hub), because if it is set dead centre it will try to shift onto 2 if you spin backwards while on 1. Likewise, I seem to remember it will try to go for 3 from 2. It's a tad noisy on 10, less so on 9, OK on all the rest.

I've been riding 1x10 in various forms for 18 months plus, dropped the chain once - no idea why. Of course I then had to stop... (Shimano and KMC would probably not approve by the way.)

Just a few lines of a thumbnail sketch, now if only I could post a couple of images.

Don't knock it until you've tried it.

Best wishes

FatLaurie

ifp123
Posts: 1
Joined: Fri Sep 04, 2015 2:57 pm

by ifp123

Hello, new member here: I've been riding my R3 and S3 with a 52/26 (ROTOR Q-Ring) 11-28 with good results. and I'
m considering a 1x11 or 1x10 Specialized Allez setup. 1. Suggestions for front and rear? 2. Is a ROTOR Q-Ring adaptable for a 1xsetup? The bike would be used for Crit and Circuit races, and the occasional group Hammerfests

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steelisreal79
Posts: 73
Joined: Mon Nov 10, 2014 7:36 pm
Location: Hoeven
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by steelisreal79

Interesting thread!
Are the guys currently on a 1x setup running narrow wide chainrings and a "clutched" rear derailler?

Thanks for the response and information!

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wolfesquire
Posts: 339
Joined: Wed Feb 09, 2011 3:03 am

by wolfesquire

How would someone go to an 1x10 setup? Just remove the front mech and all or is their more to the process?

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RBJ2206
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by RBJ2206

wolfesquire wrote:How would someone go to an 1x10 setup? Just remove the front mech and all or is their more to the process?

Little more than that. You need a narrow/wide chainring on the front to stop chain dropping. Other than that, yes remove front mech and away you go.

wolfesquire
Posts: 339
Joined: Wed Feb 09, 2011 3:03 am

by wolfesquire

Right now I have a SRAM Force BB30 10sp 39/53 Chainring and 11-25 ultegra cassette. I was planning to buy a 12-27 cassette and drop the chainring to a 52T as I live near the beach (aka, no hills what so ever)

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FIJIGabe
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Joined: Tue Sep 11, 2012 6:07 pm
Location: The Lone Star State

by FIJIGabe

Rather than a narrow/wide ring setup, which I think would bring friction into play in this case, why not go for some sort of lightweight chain catcher?

bonafide
Posts: 37
Joined: Thu Aug 30, 2012 8:29 pm

by bonafide

All...Are any of you considering alignment of the crank? I will be converting to a 1X as well but am not sure how to align the chainring with the pressfit BB? Is there any adjustment horizontally or will it be "close enough" without modification?


Thanks

djcharlou
Posts: 367
Joined: Thu Apr 23, 2015 12:59 pm

by djcharlou

Hi
1x10 user here , my bike :

Image

I don't use the clutch rear der, juste a simple Force medium cage to go with a 11-32 cassette and 44t chainring.
Works fine.
You juste need the right chain length, as descripted on wolftooth site : "Wrap the chain around the largest cog in the back and the chainring in the front. Do NOT route through the rear derailleur. Overlap the ends of the chain by a total of 4 links (2 links on each end of the chain) -- that's the correct length"

Did the Galibier on this setup.

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bonafide
Posts: 37
Joined: Thu Aug 30, 2012 8:29 pm

by bonafide

djcharlou...No worry about alignment?

What is the Galibier? I am leaning towards an 11X28 with 46 up front, though worried it may not be enough gearing for my girly-man legs on some climbs:)

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