Mountain Biking - 1X9 help

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View Full Version : 1X9 help


Flak
05-09-06, 09:00 PM
Did a search and didnt find specifically what i was looking for.

Would like to go to a 1x9 setup, with a 36t front ring and e.thirteen bashguard. I never use the granny ring and rarely find myself in the big ring. My current middle ring is 32t and i think that by going to a 36 it will give me the resistance down the hills i want while still getting rid of the dead rings/weight.

Question is, do i need a chain guide? Can i expect to drop a chain often without one? I'd also like to get some recommendations on a good quality 36t ring with minimal flex. Ill be talking to my LBS about all this, but would like to go in with an educated idea of what would be good.

Cheers for the help as always.


vw addict
05-09-06, 09:06 PM
Question is, do i need a chain guide?
you shouldn't. How often do you drop a the chain in the middle ring now? If you go to a 36 middle just remember climbing will suck(you'll have no granny)

MattP.
05-09-06, 09:29 PM
As long as you have a chain stop and a bashguard (which I run) i don't see any real reason to drop a chain, I have yet to.


Flak
05-09-06, 09:39 PM
you shouldn't. How often do you drop a the chain in the middle ring now? If you go to a 36 middle just remember climbing will suck(you'll have no granny)

I've never found i use the granny when i climb, i always find 2x2 or 2x3 was plenty easy when i used to ride, and since im back, i notice not much has changed. Around here there really arent alot of steep hills anyway.
Food for thought. Something i'll have to consider more carefully if i do this. I suspect a test is in order, gonna go for a drive down to the "real" trails tomorrow. Maybe a 34t would be better?

a2psyklnut
05-09-06, 09:40 PM
If you are getting a new chainring anyways, get one that doesn't have the ramps and pins that make shifting smoother. Get a smooth one! That will help with the dropped chains.

If you want to do it cheaply, leave your front derailleur on and just screw in the limit screws to keep it from moving. If you've got the extra cash, then I would recommend a chainguide. It will give you a lot of confidence when you hit gnarly sections at speed. The E13 is great, so is the MRP, also, do not to forget about BlackSpire's.

Personally, I run a 2x9 system. I don't use the granny very often either, but when you pedal a 35 lb bike uphill, it's nice to have the "bail out" gear. I'm not worried about the extra weight by keeping the granny on my bike.

mx_599
05-09-06, 10:46 PM
i use a 1 X 8 setup with the e.thirteen. i don't think you'll have a problem either if you just want to use a bash guard. you will get more chain slap though...not any worse than you're already getting.

i use a Blackspire mono veloce 34t

Cornish_Rdr_UK
05-10-06, 04:11 AM
Just started running 1x9 setup with a 38tooth chainring, i love it so far, its not difficult uphill either as far as Ive seen so far, I'm not running a bashguard or chainguide yet, just the bare smooth ring, ive dropped the chain a couple of times now and its difficult to get the power down over the jumps and rocky stuff knowing it could fall off, Im picking my one up next week hopefully just for peace of mind.

jaypee
05-10-06, 07:24 AM
Question is, do i need a chain guide? Can i expect to drop a chain often without one? I'd also like to get some recommendations on a good quality 36t ring with minimal flex. Ill be talking to my LBS about all this, but would like to go in with an educated idea of what would be good.

I've been running a 1x9 setup for a while now and I love it. I'm running a 32t front Surly chainring and I can't recommend it enough. It's stainless steel, isn't ramped or pined, and will last longer than the rest of my drivetrain. Fully recommended. I've a Spot guard in the outer position and an N-Gauge Jump Stop that handles duties on the inside. Since setting up the Jump Stop, I've yet to have a dropped chain.

One thing to check for is chainline. Make sure the front chainring is around 47.5 - 50mm from the center of the seattube. This will line it up the middle of the cluster in the rear and is Shimano 9-speed spec.

Crap, I just remembered, I still have to pay for my Jump Stop. (http://www.gvtc.com/~ngear/)

[edit]

Oh yeah, forgot to mention, I really see no need for a complex chainguide system like the E13's as the rollers and such only add weight and drag. Granted, they're necessary if you're downhilling or beating the **** out of your bike, but for typical xc riding, I see no point.

MattP.
05-10-06, 08:19 AM
Crap, I just remembered, I still have to pay for my Jump Stop. (http://www.gvtc.com/~ngear/)

I have yet to as well :(

mx_599
05-10-06, 08:54 AM
I have yet to as well :(
can the jumpstop be adjusted laterally enough for the middle chainring only??

jaypee
05-10-06, 09:27 AM
can the jumpstop be adjusted laterally enough for the middle chainring only??

Yes, that's how I'm running it. I've spaced my Profile cranks so that the chainring is exactly 47.5mm from the center of the seat tube. This lines up with the middle ring of a Shimano-spec MTB triple and the Jump-Stop was easilly able to be adjusted for this.

The Jump-Stop quite literally kicks ass in its simplicity and effectiveness.

Allright, I'll stop whoring for them now. :D

Blazinall91
05-10-06, 11:07 AM
i run 1x9 in the front I have a 36T FSA DH chainring and in the rear i'm running 11-34, my bike had a tendency to drop the chain, so I got an e.13 SRS when my bike was still 8speeds, and now I have 9 the SRS is well worth it, it takes one worry completely out of your head, you never have to worry about dropping your chain again, thats nice, i used to when I'd go to do something big

nodnerb
05-10-06, 11:24 AM
I have a 1x8 and drop the chain mostly when doing something minor. Bigger drops and technical stuff it usually stays on, but if I smoothly hop up a curb, it'll sometimes drop. I won't even hear it drop. Wish I would becasue it is pretty awkward finding out the other way. I bought one of those Envy chainguides for $30 that is basically like another bashguard but bolts on the inside in place of the granny. Damn thing hits the chainstay. I've ground it down and machined it but it still hits so I'm contemplatng what to do. Real chainguides are so freaking expensive. Considering the jump stop or even making something myself.

twochins
05-14-06, 01:50 AM
yeah, i've been running 1X9 for 5 months now...there were some growing pains though...if you a doing downhill stuff you will loose your cahin without a guide...my advice is to get a guide that surrounds the chain much like the front derrailer does already...if you have a full suspension, when the rear wheel hits a big bump the chain gets lifted up and over the chain ring, this if you don't have a guide with a roof so to speak

you'll see what i mean when you run just a bashguard and jumpstop