1x9/10 Setup on a road bike Need Chain Guides?
03-16-15, 09:38 AM
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1x9/10 Setup on a road bike Need Chain Guides?
Hi all,
I'm currently building my girlfriend a bike using an old steel road bike frame. The bike is designed to be a light comfortable road bike. 700c wheels, flat bars and a 1x9/10 gear set up. In researching this I have found a lot of mention about chain guides, however is this mostly for offroad bikes, on a road bike is it necessary?
Thanks,
Chris
I'm currently building my girlfriend a bike using an old steel road bike frame. The bike is designed to be a light comfortable road bike. 700c wheels, flat bars and a 1x9/10 gear set up. In researching this I have found a lot of mention about chain guides, however is this mostly for offroad bikes, on a road bike is it necessary?
Thanks,
Chris
03-16-15, 09:44 AM
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Are you using a 1x crank? Check out the wolftooth chain ring. What bcd are you using?
03-16-15, 10:26 AM
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I haven't bought the crank yet I'm still looking to see what would be best, those wolftooth chainrings are a bit too expensive. The whole bike is being built on a budget of £300. It looks like it will be cheaper to build it 2x10 or 3x10!!!
03-16-15, 10:33 AM
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Have seen this which is better priced Vectiox Lightweight Narrow Wide Chain Ring - Thick Thin 1x9 1x10 Enduro 104BCD | eBay
You think it would be necessary for a 1x10 road though?
You think it would be necessary for a 1x10 road though?
03-16-15, 10:38 AM
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Only way to know for sure is to build up the bike and see if the chain pops off when your girlfriend rides it. There's a reason nearly all bikes with a rear derailleur either have a front derailleur, "bashguard" outer chainrings, or some kind of chain keeper mounted in lieu of a front derailleur. 
03-16-15, 10:41 AM
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A clutch-type derailleur will definitely help reduce the risk of chain drop. Same with a narrow/wide chainring. I'm running SRAM's CX1 on my commuter/gravel rig, and it's been extremely reliable.
[url=https://flic.kr/p/r9tWaT]
[url=https://flic.kr/p/r9tWaT]
03-16-15, 10:56 AM
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as mentioned, i would run it without one and let the results determine what is and is not necessary. generally, the looser the chain in the big cog, and the rougher the terrain, and the more curbs and potholes one jumps or hits, the more likely the chain will come off.
03-16-15, 10:59 AM
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Only way to know for sure is to build up the bike and see if the chain pops off when your girlfriend rides it. There's a reason nearly all bikes with a rear derailleur either have a front derailleur, "bashguard" outer chainrings, or some kind of chain keeper mounted in lieu of a front derailleur.
03-16-15, 11:02 AM
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She isn't going to be bouncing around on it so I'll see how the budget goes and maybe get a narrow/wide chainring or bash guard.
Thanks all for the advice.
Thanks all for the advice.
03-16-15, 12:03 PM
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Chain Guard disc also helps keep your Trouser leg from snagging and sucked into the drive train.
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