The Official mtbnj 1x9 Thread...
- Thread starter NJ-XC-Justin
- Start date
NJ-XC-Justin
KY-DH-Freddy
I've officially converted my bike to a 1x9I've had it long enough to realize I'm never gonna need the big ring on the 29'er and I haven't had a little ring on my bikes in years...I rode it yesterday at Hartshorne and really like how much smoother the drivetrain feels and of course, it's a lot quieter...I'll post some pics later...-Jim.
It's awesome. 6 months purely 1x9 now and I'm still super happy with it. I raced it at Waway and never wanted more (or less). And on top of losing all the crap, once you go 1x9 you can throw on a short-cage der which is short n sweet.
I think for all-mountain bikes around 30 pounds, it's a no-brainer. clearance, weight, noise, simplicity. 32x11-34.
Steve Vai
Endurance Guy: Tolerates most of us.
It's true...At Waywayanda I got the holeshot and sat out in front of the Expert field through the fastest part of the course, in the middle ring...And at Hartshorne yesterday, 2 of my laps were faster than I've ever gone, all in the middle ring...Try it next time you're out...You'll be surprised...
-Jim.
When I first got my bike I went out to LM and used my big ring. After 1 race lap I soon realized that I was just excited to have a new bike and haven't used it since. I actually used it a few times on the downs at Waway, but I'm not sure if it was really necessary.
Actually I'm sure it wasn't. I think 2 different times I thought I was in the big ring, but was in the middle ring, and I dropped the front ring only to find I was in the small ring. So in the end I think it was more a distraction than not.
Anyway, I'm a fat reject. I figured a fast guy like you would actually use it. Obviously if you don't need it, I sure as hell don't.
Actually I'm sure it wasn't. I think 2 different times I thought I was in the big ring, but was in the middle ring, and I dropped the front ring only to find I was in the small ring. So in the end I think it was more a distraction than not.
Anyway, I'm a fat reject. I figured a fast guy like you would actually use it. Obviously if you don't need it, I sure as hell don't.
BiknBen
Well-Known Member
Gear inches increase as wheel circumference increases. That means that a gear combo is higher on a 29er than it would be on a 26er.
When I was using gears on a 26er, the big ring was just my bash guard. I would remove it from a 29er as well. You could also install a smaller chain-ring if you really wanted 27 gears.
bradmcnutt
Member
Jim,
So if you already have a bashguard, then all you need is that guide attached to your frame? What's that guide called? That's a pretty sweet, simple setup. The guides I've heard other people talking about seemed a lot more complex.
So if you already have a bashguard, then all you need is that guide attached to your frame? What's that guide called? That's a pretty sweet, simple setup. The guides I've heard other people talking about seemed a lot more complex.
NJ-XC-Justin
KY-DH-Freddy
if you're riding a hardtail, you're good with a jump-stop (see earlier in this thread for links to the rohloff and n-gear ones) to keep your chain from falling off the inside like he has. If you're riding a dualie you may need something more substantial. On my dualie, I use a blackspire blackguard on the inside of my 32-tooth ring and that does the job nicely.
The "show pics of your 1x9" thread in the drivetrain forum on MTBR has around 30 different combinations of chain guide devices.
Steve Vai
Endurance Guy: Tolerates most of us.
It's an 'N Gear...I used it all last season on my cross bike with no issues, it's very simple and very light...
http://highgearcyclery.com/page.cfm?PageID=587&action=details&sku=CH2057
-Jim.
Steve Vai
Endurance Guy: Tolerates most of us.
Actually, after reading about JHK's 2x9 ring setup I realized I didn't need it, he runs a 39/29...And quite a few of my Fisher 29'er teammates don't run outer rings on their bikes either...
-Jim.
f2f4
New Member
I was thinking of converting my hardtail into a 1x9.
Mainly for two reasons:
1) Simplicity, weight, etc
2) Part of my quest to make my bike DJ-capable
#2 being just a part of what I'm planning to do. I'm also looking at shorter stems, new other parts, etc.
I'm thinking of a 34 chainring, with a 34-11 on the back. Good or no? Should I run a 36 ring instead?
I can use a short-cage SRAM with a 34/36 x 34-11 setup, right?
Mainly for two reasons:
1) Simplicity, weight, etc
2) Part of my quest to make my bike DJ-capable
#2 being just a part of what I'm planning to do. I'm also looking at shorter stems, new other parts, etc.
I'm thinking of a 34 chainring, with a 34-11 on the back. Good or no? Should I run a 36 ring instead?
I can use a short-cage SRAM with a 34/36 x 34-11 setup, right?
NJ-XC-Justin
KY-DH-Freddy
Unless you're in killer shape, I'd stick with a 32 or 34 tooth ring. So long as you've got 11-34 in the back you shouldn't spin out unless you're on pavement.
Yes, def. a short-cage. My x9 rules.
I was thinking of converting my hardtail into a 1x9.
Mainly for two reasons:
1) Simplicity, weight, etc
2) Part of my quest to make my bike DJ-capable
#2 being just a part of what I'm planning to do. I'm also looking at shorter stems, new other parts, etc.
I'm thinking of a 34 chainring, with a 34-11 on the back. Good or no? Should I run a 36 ring instead?
I can use a short-cage SRAM with a 34/36 x 34-11 setup, right?
34 should be good unless you ride mainly downhill or really flat places. I road a 34 for awhile and it was prefect.
dhsean
Member
I have a SC Chameleon setup with a 36 and 12-25 cassette with a short cage road derailer. It's a common setup for slalom/4x. It works pretty well for everything but gets a little rough on the trails with steep or longer climbs.
A regular MTB cassette would probably be more versatile for trail riding when you have to climb.
A regular MTB cassette would probably be more versatile for trail riding when you have to climb.
FFT
Gay & Stuffy
2) Part of my quest to make my bike DJ-capable
SS that mofo!!
NJ-XC-Justin
KY-DH-Freddy
Adam Craig won Nationals today on a 1x9 Anthem X prototype. 4 inches of travel, set up as a 9 speed? Who would have ever thought of it?
http://www.velonews.com/photo/80454
http://www.velonews.com/photo/80454
ArmyOfNone
Well-Known Member
Why is that many of the big name guys have not made the switch to the big wheels?
pinkshirtphotos
Active Member
the big name guys who arent are a 29 hardail are riding for companies that dont have a 29 in their product line.
NJ-XC-Justin
KY-DH-Freddy
I think only Giant amongst the major bike makers doesn't offer a 29er at this point, so I don't agree with that. Truth is different strokes for different folks. JHK and another top 5 dude rode 29ers BTW.
Anyway, Adam's 35-tooth chain ring is big for me, but not as big as I thought it would be actually. And his chain guide device kinda has me thinking.