SRAM XX1 Eagle Schaltwerk B-Bolt und Begrenzungsschraube Kit

I installed this on my Sram GX Derailleur in place of the existing hardware. Nothing was wrong with the former hardware, I just chose to do this upgrade. Is it necessary? That's hard to tell but if you like to tinker with your bike and upgrade where you can, then this would fit the bill. I'd like to think I noticed a difference in shifting setup afterwards but maybe I just wanted to.The fact that this is used on the XX and fits the GX like a glove seemed like a no brainer for me. The GX is a fine package and great value for money that shares a lot of operating similarities with its more expensive brothers. Install was 5 mins. Plenty of Youtube content to walk you through that.

With careful shopping, you should be able to find a version of this one for around $17. Even at $36 Common price, it might be worth it.using this for your NX or SX derailleur will take the slop out of the mounting point, dramatically improving shifting over new, and removes the inevitable play that comes from the lower end derailleurs lower quality mounting hardware.At this point the shift quality of my NX derailleur is better than new GX, and significantly cheaper than replacing either NX derailleur, and miles cheaper than upgrading to GX.Installation is a 5 minute job.

I learned that this kit would upgrade my SRAM GX to an XO1 by installing this kit and I'm glad I upgraded. Quality parts that I know will last. The bushing in this kit is much better than the original GX design that will eventually wear out the bolt and derailer housing making for shifting issues. This kit results in crisp shifting that will last a long time. Relatively inexpensive upgrade and happy with the results.

I upgraded my GX derailleur with this kit and it dramatically reduced the play in the system.

Items received were mislabeled. Supposed to be hex b-bolt and limit screw kit for x01, and xx1. Guide and pulley wheels were sent. Returning for my refund.

Was debating whether to try this on my YT Izzo rear derailleur or just upgrade everything to Shimano SLX. My 11speed Sram on my Jeffsy works great, but the 12 speed NX on the Izzo was pretty terrible. IYKYK. This parts seems pretty expensive for a bolt kit, but I decided to give it a try. The Izzo shifts much better now. It will still over shift occasionally, but not nearly as often as it used to. The pivot is not all loose and sloppy like the original bolt was. And yes, I know how to set up a derailleur, have been doing them for decades. I would give 5 stars if the price was a little better.

Helped with the shifting. A must for gx rear derrailers.

Time for derailleur maintenance. Used this kit to swap out the corroded part on the SRAM GX mech. This one feels smoother, quicker and more responsive. Nice little upgrade. Recommend.