GX 2x RD Compatibility with Apex 1
05-20-21, 10:02 AM
#1
Full Member
Thread Starter
GX 2x RD Compatibility with Apex 1
I have an Sram Apex1 1x11 groupset on a Trek Checkpoint frame. Will a GX 2x11 rear derailleur index correctly with the Apex1 double tap shifter? For an indexing test with a GX 2x10 rd from my stash installed with the Apex 1 I’m having trouble getting the shifting indexed properly. I thought GX 2x10, Gx 2x11 and Apex 1 all with Exact Actuation would be compatible.
Thanks.
Thanks.
05-20-21, 10:06 AM
#2
Senior Member
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767
Bikes: lots
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times
in
1,489 Posts
No, it won't.
05-20-21, 11:02 AM
#3
Full Member
Thread Starter
Is the Apex shifter indexing compatible with any RD besides the Apex 1x11 clutched derailleur that came with the groupset? I guess I’m misunderstanding what Exact Acuation is. I need lower gears than the Apex gear combination gives. As an experiment I installed a 46/30 front chainring and I’m trying to use the Apex to shift a 2x compatible RD. I hate to invest in a whole new groupset to get lower gears.
In the meantime my 80s touring bike with a triple and 37mm MTB Riddler tires works as my all-road/gravel bike.
In the meantime my 80s touring bike with a triple and 37mm MTB Riddler tires works as my all-road/gravel bike.
05-21-21, 05:14 AM
#5
Senior Member
Join Date: Jan 2013
Location: South Jersey
Posts: 2,265
Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 713 Post(s)
Liked 797 Times
in
474 Posts
The GX 2x11 is X-actuation and won't work with the Exact Actuation Apex 1 shifters. The GX 2x10 rear derailleur is Exact Actuation and will work fine with the Apex 1 shifter, but it only has a max cog size of 36t.
