Jump Stop

[Shaggz]

I officially made the switch to 1x9 a few weeks ago, after being heckled by Fogerson each time I dropped into the granny. Picked up one of these. Installation was pretty easy, considering I had an extra set of eyes on the job. The hardest part was removing the front shifter.

Did not have the tool to remove the cranks, so I left the small ring on. I figured it was not so intrusive, so I felt no rush to remove it. Thankfully I did not, as I dropped the chain several times and the small ring was there to pick up the work load.

After 2 drops on Cascade today, I had enough. A little trail side repair seems to have remedied the situation, but regardless, I am going to leave small ring where it is.

 

[loggerhead]

You pretty much have to clamp the hell out of it. I had one set up with 1x9 on my older lts and had the chain right up against the guide so that the chain wouldn't drop. I tried out another one today(different bike, different diameter seat tube) and noticed the guide sliding inward as time went on.
Just clamp the crap out of it. My older one never moved maybe because I used a 6mm alu. bolt with two spacers.:hmmm:

 

[walter]

dood, after I dropped my chain like 9 times during the DH40 I threw that thing in the trash.

 

[Pearl]

Are you running a bash guard too? Mandi runs this and has great success. Did you cut the chain? Generic questions, I know.

 

[Shaggz]

what are you using now, Walt?

 

[Shaggz]

Yes, using bash guard. Chain is cut properly.

We dropped it as low as it could go w/o hitting the teeth on the small ring, and toed it in to almost touching the chain. I put it through it's paces on the second half of the ride, and all seems well. Hopefully that tok care of it.

 

[soundz]

r u using a SS chainring?

 

[walter]

I use that MRP guide. I switch my Salsa between 1x9 and SS. It mounts to the bb. I decided just to leave it on there in SS mode. No need to keep pulling the cranks when I flip flop.

 

[Shaggz]

No SS ring. Hopefully the adjustment will do it. It is a cheap and easy solution...

 

[loggerhead]

r u using a SS chainring?

It will still drop with a ss ring if not setup properly. I needs to be a hair away from the guide when dropped to the lowest gear in the rear. Clamp it till you can't turn any more. Forget torques specs.

 

[soulchild]

dood, after I dropped my chain like 9 times during the DH40 I threw that thing in the trash.

^ THIS ^

for me, after multiple attempts to make this work back when I first went 1x back when, and it does - until it doesn't again (this and similar products) I decided to do it the right way and picked up an actual chain guide... MRP and e13 have something for any application...

pick yourself up a chainguide and be done with it...

 

[Red Mosquito]

As previously stated, tighten that bitch down. I ran an N-gear w/ bash guard 1x9 setup for about a year. The jump stop came loose on me twice, each time I dropped the chain a few times until i figured out the problem. It wasn't "rattling" loose, just loose enough to move if I pushed on it with my finger.

This was a flawless setup otherwise. I set it up to be as close to the chain as physically possible w/o rubbing.

 

[THATmanMANNY]

Dude, definitely get mrp 1x guide

 

[Fogerson]

Jump stop always worked on my SIR9; my Jet9 too (albeit the Jet has a ss ring).

I may have a solution in my parts pile for you...'didn't work for my setup, but maybe yours...we'll need to pull the cranks though....

 

[Pat]

MRP guide is the way to go. And a SS chainring.

 

[bonefishjake]

i used that for the DH40 and dropped my chain exactly zero times. you need to get it as close as you can to the chain/cog w/o rubbing. i don't think an SS specific cog is necessary (not sure if my Q ring is or isn't). short of that...MRP.