Installation and Use – SRAM Technical Service FAQ

What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require?

One CR2032 per shifter. The same as the previous RED eTap™ groupset. See the shifter and controller battery replacement procedure here. See more

How many hours of riding can I get from a fresh set of shifter batteries?

About 2 years depending on how much you ride/shift. See more

Are there any auxiliary buttons on the shifters with unassigned functions that can be used to control other wireless components or perform special functions?

Yes, the AXS™ buttons on the backs of the shift paddles can be used to switch between shifting modes. Additionally, you can assign eTap™ Blip remote shifter buttons to control other SRAM AXS™ devices. See more

Are eTap™ Blip and Clic button functions digitally customizable?

The functionality of the ports that Blips and Clics are plugged into can be customized using the AXS™ app. See more

What size disc brake rotors does SRAM recommend for eTap AXS HRD?

160mm for road applications and 140mm for closed circuit applications such as triathlon, TT, cyclocross, and criteriums. See more

What type of brake pads are required for SRAM eTap AXS HRD road disc brakes?

SRAM RED eTap AXS Monobloc calipers use the same pad type as the previous SRAM RED eTap caliper and all of our Force, Rival, and Apex HRD 11-speed disc brake systems. SRAM RED eTap AXS HRD two-piec... See more

What disc brake pad compound options does SRAM offer for SRAM RED and Force eTap AXS HRD brakes?

Organic and metal sintered. See more

Can I digitally assign different functions to the buttons (e.g. move the derailleur outboard with a left shifter click)?

Yes, the AXS App allows you to customize your shift paddle functions as well as the functions of optional remote shift buttons (eTap™ Blips or Clics). Note: SRAM AXS controllers that are paired to ... See more