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View Full Version : Switching to 1 x 9 gearing revisited.


William
04-04-2012, 12:20 PM
I want to switch to a 1x 9 set up on my mtb. In the previous 1x 9 thread some suggestions where to switch the outer ring to the inside, put a bash guard on the outside, and use a chain keeper. On this set up there won't be an option to move the outer ring in...It won't clear the chain stay. This will leave a gap of about 4.5 cm from the center of the seat tube (about 3 cm to the outer wall) to the inner edge of the chain. I would like to find a keeper that will cover that gap so I can remove the FD, cable, and trigger lever unit on the bars.

http://i1108.photobucket.com/albums/h420/SodaFuel/IMG_0505.jpg

http://i1108.photobucket.com/albums/h420/SodaFuel/IMG_0504.jpg

http://i1108.photobucket.com/albums/h420/SodaFuel/IMG_0503.jpg




Any suggestions would be greatly appreciated.






William

PS: I do have a set of Deore XT 180mm cranks laying around if that might work better?

jr59
04-04-2012, 12:56 PM
pretty cool to see that bike with dirt on it

Jawn P
04-04-2012, 01:04 PM
You've already got the perfect setup for a 1x, since you've got your bashguard already installed.

Just pull off the granny chainring and slap one of these on http://www.pricepoint.com/detail/18421-070_THICW8-3-Parts-843-Cyclocross/Third-Eye-Chain-Watcher.htm

Hartlin
04-04-2012, 01:18 PM
This is what I run on my 1X9, a BBG outer and inner bash guard.

http://farm5.static.flickr.com/4083/5057971691_be02338936.jpg

dustyrider
04-04-2012, 02:53 PM
On an old MTB bike, that I ran SS, I went low tech, I cut up an old Front derailleur. Basically, once I removed the granny gear, I cut off the out board part of the cage and ran a cable from the stop on the seat tube, down to tension the derailleur. It acted as a perfectly good chain guide.

Of course the above solution is pretty clean and you're never going to drop a chain, up front, with it.

If there isn't enough clearance for the inner guide you may be able to space the drive side out a little without messing with your chain line. Shimano has BB spacers starting around .7mm. I've also used the smallest BB spacer on the cassette before trying to get different chain guides and ISCG brackets and what not to sort out.

Vinci
04-04-2012, 03:01 PM
Unless you'd save a lot of weight with a chain watcher, just leave your FD on, lower it a bit so that the cage covers the top of the chainring, and set the limit screws to keep the cage in position around your single chainring. You could probably even ditch your bash guard like that.

With the limit screws set, you can take out the cable/housing entirely. Hell, you can even take out the bolt that secures the cable, if you like. :)

William
04-04-2012, 03:15 PM
Unless you'd save a lot of weight with a chain watcher, just leave your FD on, lower it a bit so that the cage covers the top of the chainring, and set the limit screws to keep the cage in position around your single chainring. You could probably even ditch your bash guard like that.

With the limit screws set, you can take out the cable/housing entirely. Hell, you can even take out the bolt that secures the cable, if you like. :)

Some good suggestions folks, thanks!

I thought about using the old FD but that puppy has a lot of throw and at the moment the limit screws aren't moving it. But it's also under tension so if I let loose the cable it may work.

The double bash guard has appeal since the chain won't likely come off at all up front. Plus a lot of the trails have big rocks and logs to climb over so a bash guard is a must.

pretty cool to see that bike with dirt on it

You should have seen it last week. We came across a section of trail with some big muddy pits with no clear line to go around. It was hammer hard, hit it with speed, hope it's not too deep, and that you make it across.:D






William

William
04-23-2012, 02:12 PM
Problem solved. Inner bash guard wouldn't work due to chain stay clearance issues.




William

crownjewelwl
04-23-2012, 02:39 PM
by your pie plate!! :banana:

William
04-23-2012, 02:55 PM
by your pie plate!! :banana:

I took it off. Now I'm just waiting for my custom chrome pie plate to arrive!!!:banana:


http://oldtenspeedgallery.com/blog/wp-content/bikes/2012/01/409441_10150561136998331_233427923330_8776408_8056 81287_n.jpg




:p:p;)


William

Marburg
04-23-2012, 05:30 PM
Problem solved. Inner bash guard wouldn't work due to chain stay clearance issues.

William

+1 for the Jump-stop. This is precisely my setup (Jump stop inside, thin not-really-bash-but-chain guard on the outside. Zero problems.

cachagua
04-26-2012, 01:51 PM
Very nice set-up! Good thinking, to solve the chainstay clearance problem that way.

Contrary to industry marketing, it's possible to ride without thirty-three gears...

William
04-26-2012, 08:41 PM
So far it's been running flawless.




William

Earl Gray
04-26-2012, 09:06 PM
It seems wrong for a thread about your Sawyer not include a full shot of it.

These are Bad Ass Bikes.
http://i1108.photobucket.com/albums/h420/SodaFuel/Sawyer/IMG_0088.jpg

William
04-27-2012, 06:17 AM
It seems wrong for a thread about your Sawyer not include a full shot of it.

These are Bad Ass Bikes.



A few more full shots here as well...

http://forums.thepaceline.net/showthread.php?t=108554

The Sawyer is a blast to ride, very well mannered on the technical trails and I love the retro styling.





William

William
04-27-2012, 06:19 AM
Very nice set-up! Good thinking, to solve the chainstay clearance problem that way.

Contrary to industry marketing, it's possible to ride without thirty-three gears...

My first thought had been a bashwich but the clearance wasn't there for it. The Jump-stop was the perfect solution.




William