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SRAM GX 2x11 rear derailleur?

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keen

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Discussion starter · #1 ·
Looking into replacing my current SRAM 11 speed rear derailleur. Was looking to see which one had the latest rear clutch "type" the GX 2x11 has a Type 3 clutch. I didn't know SRAM made a 2x11 11 speed. The GX 2x11 is listed under their mountain group but not really much info. I notice it has High Low screws on the outside of the cage. Anyone know anything about this rear derailleur?
https://www.jensonusa.com/SRAM-GX-2X11-Speed-Rear-Derailleur-1
 
#2 ·
I've seen them on mid/low end bikes and they work fine AFAIK. Note the 1x RDs follow the cog size by upper pulley offset rather than slant of the parallelogram. You can't do this with a 2x, so this RD has much less offset and a slanted parallelogram. IDK the diff between the type 2.1 and type 3 clutches except the latter may be optimized for 2x, not necessarily an improvement over the 2.1 type.

Chain Wrap Capacity: 46 teeth
Largest Cog: 42
Weight: 289 g
Shifter Compatibility: SRAM X-Actuation
 
Discussion starter · #4 ·
#5 ·
I believe the pulley vs non-pulley is related to the angle the parallelogram moves, which is horizontal in the 1x case, and slanted in the 2x case. The slant allows a more direct pull by the cable.

Clutch wise, with 1x the cage moves an increment small amount with each shift. With 2x, the cage has to make a comparatively large movement when shifting the front. This may be a reason behind a different clutch type.
 
Discussion starter · #6 ·
Lone Rager said:
I believe the pulley vs non-pulley is related to the angle the parallelogram moves, which is horizontal in the 1x case, and slanted in the 2x case. The slant allows a more direct pull by the cable.

Clutch wise, with 1x the cage moves an increment small amount with each shift. With 2x, the cage has to make a comparatively large movement when shifting the front. This may be a reason behind a different clutch type.
Click to expand...
I mentioned the reason for the derailleur change here :
https://forums.mtbr.com/drivetrain-...leurs-cranks/sram-derailleur-poor-up-shifting-clutch-return-spring-1130743.html

I purchased my current X1 derailleur used w/o any history (Pro's Closet). It literally looked brand new save for some slight chain marks inside the cages. During my in depth inspection I noticed the cable isn't taught (just past the pulley) like my Shimano XT which is a straight shot to the actuation arm.

Think I am going to try the GX 2x11. I was going to jump ship w/ Shimano but I rode my Shimano equipped bike and the shifting though precise feels really clacky.
 
#7 ·
The GX 2x is a very solid derailleur. I run 2x11. It shifts as well as any 2x derailleur out there. It has bearings in each pulley. It is not low end. You can run a 2x derailleur as a 1x, but not the other way around. The GX has a very solid cage that does better than Shimano derailleurs in the rocks. It is heavy though. I'd like to run XTR 2x to save weight, but their cages break too easily in the jagged rocks in my area.
 
Discussion starter · #8 ·
TTTURNER said:
The GX 2x is a very solid derailleur. I run 2x11. It shifts as well as any 2x derailleur out there. It has bearings in each pulley. It is not low end. You can run a 2x derailleur as a 1x, but not the other way around. The GX has a very solid cage that does better than Shimano derailleurs in the rocks. It is heavy though. I'd like to run XTR 2x to save weight, but their cages break too easily in the jagged rocks in my area.
Click to expand...
Good to know as I pulled the trigger on one. I know there is some sort of physical difference between the 1x & 2x derailleur so I guess I will see how it works compared to my X1.
 
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