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Cyclocross and Gravelbiking (Recreational) This has to be the most physically intense sport ever invented. It's high speed bicycle racing on a short off road course or riding the off pavement rides on gravel like :The Dirty Kanza". We also have a dedicated Racing forum for the Cyclocross Hard Core Racers.

1x9 question

Old 11-11-09, 04:56 PM
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Grimace 2/9
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1x9 question

I'm thinking about building a purpose-built cyclocross bike for next year. I'm not very competitive but enjoyed this, my first, season tremendously. I don't ever use the big ring in races so I'm thinking aobut making this bike a 1x9, it seems simpler and more elegant. I talked to two differnt mechanics in LBS's today and got two differnet perspectives. One said that he thought chain keepers/guards just didn't do a good enough job and that 1x9's throw chain more often. The other mechanic said that with the right chain keeper it is not a problem. I've got a front deraillur on now and didn't throw a chain all season, so that's one data point. Opinions from people who have, or had 1x9's for cyclocross?
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Old 11-11-09, 05:05 PM
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I've never had a problem running 1x9, either mountain or cross, as long as I had guards on both sides. I use the N gear jumpstop on the inside, and a chainring or substitute guard on the outside.
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Old 11-11-09, 05:12 PM
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myclem
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Chainring guard + N-Gear

Campy Veloce 9-speed
39 x 12/26

Works great for me. Not a chain dropped yet.

Paul's Chain Keeper looks good, too.
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Old 11-11-09, 05:19 PM
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yeah, i was wondering about this myself...don't use the big ring either.

chain jumped on me one on my race (yeah, i took the derailleur off...!), even after i put a shimano 'shark fin' on to diminish the chance. still, not the best idea.

i still plan on making the switch, too...maybe even SS

curious to see how the discussion goes
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Old 11-11-09, 06:54 PM
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Don't race, but am a big proponent of the 1x9- it is a pragmatic and enduring set up.
Have ridden thousand of KM over all sorts of surfaces- gravel, mud, pavement, snow, trails,
cobble streets, cowpaths, etc, cannot recall the last time I dropped a chain.
Set up in pic is a chain watcher and salsa ring dinger-
Attached Images
File Type: jpg
P1010269.jpg (90.2 KB, 166 views)
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Old 11-11-09, 07:16 PM
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I have one of these on my commuter which serves as the front part of a 1x8 gearing setup. I don't bounce the bike around as much as you cyclocross guys do, but as a commuter I'll bet that I put more miles on than most cyclists. Never had an issue with the gearing on the bike.
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Old 11-11-09, 07:21 PM
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I have run 2 chainrings for cross for the past two full seasons and have never dropped a chain, I think if it is set up well and your tire pressure is low enough/you ride smooth enough then you will never drop a chain with a double. IMO YMMV
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Old 11-11-09, 07:39 PM
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Originally Posted by Rosso Corsa View Post
I have run 2 chainrings for cross for the past two full seasons and have never dropped a chain, I think if it is set up well and your tire pressure is low enough/you ride smooth enough then you will never drop a chain with a double. IMO YMMV
You just jynxed yourself.
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Old 11-11-09, 09:36 PM
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I had my cross set up 1x9. i was a cheap ass, so i used a 40t gear for the guard, gear was 39, and a cut up der to keep it falling on the inside. only fell off when i was in the pits. I did lots of mtb with it and never got chain drop when i was actually riding.
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Old 11-11-09, 10:38 PM
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the paul's looks pretty slick and i would get it if i had an extra 52 bucks lying around. In the meantime, i'm using an old front derailleur.
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Old 11-12-09, 12:15 PM
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im kinda in the same boat, dont ever use my big ring during a race so i was thinking of making a 1x10 and was looking at the paul chain keeper, anyone on here experince actually using it??
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Old 11-12-09, 08:27 PM
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j. hughes
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I wonder why I've been so lucky using just 1 salsa crossing guard on my 1x8? Never used a jump stop or anything else on the inside. Have anything to do with 8 vs 9 in back?
Btw, I love the 1x# setup and don't think I'll ever go back.
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Old 11-15-09, 08:14 PM
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Hey, thanks all, for the replies. Anybody here actually using the Paul's??? That looks the way to go unless I hear differently.
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Old 01-03-10, 07:51 PM
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Don't mean to hijack this thread, but I was thinking of going 1x9 on my JTS, but I also want to be able to do some road riding as well - not any serious racing or anything - would 1x9 seriously disable me? What would a good chainring up front be? Or should I just stick w/ the 2x9 and downsize my big 53 to a 46 or something?
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Old 01-03-10, 11:33 PM
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ppp, if you switch tires to road tires you need a double or a different gear than your cross set up or you will spin out easily.
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Old 01-04-10, 04:43 AM
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I currently building a bike with a 42T ring, salsa chain guard on the outside, and a third eye on the inside (similar to what martianone did earlier on this thread)
Will have Campy Veloce 10sp shifters, with a 9sp cassette and Shimano 105 rear derailleur (just parts I had around the garage)
According to this, it will work
https://cxmagazine.com/shimano-campag...-compatibility
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Old 01-04-10, 10:37 AM
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Originally Posted by D**** View Post
ppp, if you switch tires to road tires you need a double or a different gear than your cross set up or you will spin out easily.
I'll call BS on that. If he runs a 42T with an 11-34 moutain cassette, he will have plenty of gearing to ride the road. Spinning the 42/11 combo @ 120rpm will yield higher than 30mph. And the 42/34 combo is a lower gear than most road setups. He won't have the resolution to maintain a steady cadence, but a 1x9 will not limit his road riding opportunities and certainly tire choice has nothing to do with gearing in this situation.
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Old 01-04-10, 02:51 PM
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1x9 (non racing) setup with Sugino 36T, two BBG Superlights and 12-26T cassette. For now this works for commuting and general riding. Never dropped the chain, though I think it could be shorter.

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Old 01-14-10, 03:11 PM
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mijome07 - I like that setup! Not only would it prevent the chain from dropping but keeps your pant leg away from the chain when commuting. I may consider this on my own. What length chainring bolts do you use with that setup?

I run a 1x7 setup on a commuter bike and I will drop the chain if I shift through too many gears too quickly.

Last edited by zanq; 01-14-10 at 03:15 PM.
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Old 01-14-10, 03:31 PM
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mijome07
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Originally Posted by zanq View Post
mijome07 - I like that setup! Not only would it prevent the chain from dropping but keeps your pant leg away from the chain when commuting. I may consider this on my own. What length chainring bolts do you use with that setup?

I run a 1x7 setup on a commuter bike and I will drop the chain if I shift through too many gears too quickly.
Thanks. I got these.

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Old 02-18-10, 12:06 PM
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I dropped my chain 5 times in my first cross race recently running a campy 1X9 with a jump stop. I was beyond irritated. Granted it was a really tough course, but that was unacceptable. I am considering adding another front ring. Still trying to make the decision. I guess things work differently for different people.
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Old 02-21-10, 06:37 PM
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i wonder if its possible to make something similar to the pauls from stuff at home depot?
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Old 02-21-10, 07:19 PM
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Originally Posted by Dustintendo View Post
i wonder if its possible to make something similar to the pauls from stuff at home depot?
Or N-Gear Jump Stop + a pair of pliers, similar to this but bent all the way over:
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Old 02-21-10, 10:26 PM
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on mtbr i saw that someone had removed the cage from a pauls keeper and replaced it with washers or something. got me thinking...
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Old 06-26-14, 11:57 AM
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I know this is ancient, and 4 year thread bumps may not always take off lol but here goes....

Can any of you 1x guys help me get my 1x9 set up? I need to buy DT shifters and a rear derailleur and I'm stuck. I'm having a hard time finding specific info. I'm using a 39/53 crank (to use just the 39, and a guard + keeper). I like the looks of the Rivendell DT shifters, but idk if they're right for a 1x9 setup. And then I have no idea what to look for in a rear derailleur, I know nothing about geared bikes, and less about 1x !!
I'd love to have a 'guide' to help me get where I need to be.... Any good Samaritans out there feel free to email me- wahoo401@yahoo.com

thanks
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