Rear mechs-mixed shifters

[Andy B]

Modern stuff, Sram SX & X series shifters only works with Sram rear mech's (SX4..., X7, X9, X0)

Named Sram shifters work with Shimano rear mechs (Attack & Rocket)

Any shifter works with any front mech

Shimano shifters only work with Shimano mech's

Retro, not 100% sure on which works with which

So I just stick to Sram X9

 

[FluffyChicken]

Retro.
SRTxxx = Shimano (and others)
Which is where SRAM/GripShift started, then they wanted even spaced twisting on the GripShift which is easier and more intuative for numskulls than the Shimano spacing on a GripShifter.
So
ESPxxx = SRAM 1:1 came out and you suddenly had 1:1 ratio.
All the numbers are now the same space on the shifter. Good for mum and dad, everyone happy

Course they needed to sell this while realising people wanted trigger shifter, so now add more marking gumpf to sell this 1:1 to trigger people, even though it's all really based around having nice number spacing on a GripShift.

 

[Xesh]

The other thing that makes a difference on leverage at the rear mech is which side of the pinch bolt the cable is attached.

At one time Campag road mechs were 8/9 speed compatible purely by moving the cable to the other side of the pinch bolt.