I've been using this system on gravel as well as smooth tarmac and, yeah, you can get chain slap occasionally but nothing major and I've never managed to unship the chain. Despite the rotational velocity of the cage, the spring clutch maintains a linear level of torque whether on smooth or rough terrain. The spring clutch in Rival eTap AXS is designed to be linear throughout all riding conditions and cage positions. As conditions become rougher the chain retention on the clutch increases progressively as the rotational velocity of the cage increases. The fluid Orbit damper is a clutch that allows the cage to rotate with minimal perceived torque under normal, smooth riding conditions. Rival is different in that it uses a mechanical spring clutch instead. These use silicon fluid to reduce excessive movement. Red and Force eTap AXS rear derailleurs also use SRAM's Orbit fluid damper system to keep the chain in place and the drivetrain quiet when you're riding over rough roads. Whereas the SRAM Red eTap AXS rear derailleur features a carbon cage and ceramic pulley bearings, Force and Rival use an aluminium cage and steel bearings. Other options: Rear brake/right shift, front brake/left shift Options reviewed: Rear brake/left shift, front brake/right shift SRAM Rival eTap AXS Shift/Hydraulic Disc Brake System That's to be expected, but overall Rival is still an excellent groupset that's already shaking up the market. Inevitably, the cheaper materials increase weight Rival eTap AXS is certainly a chunk heavier than either Force or Red. Rival eTap AXS also uses cheaper materials in some areas – the cranks are aluminium rather than carbon, for example.
The rear derailleur has a spring clutch rather than the Orbit fluid damper system found on Red and Force, for instance, and you can't add auxiliary remote shift buttons to the normal drop-bar shifters. Of course, SRAM has had to make certain changes to reduce the price.
The electronics are exactly the same as for the more expensive groupsets – the same motors, switches, batteries, and so on. Most of the tech found in SRAM's Rival eTap AXS (pronounced 'access') groupset has trickled down from Red and Force, most notably the wireless electronic shifting which is more accessible than ever before. It's suitable for both road and gravel riding. SRAM Rival eTap AXS offers only wireless electronic shifting and hydraulic disc braking. Everything works in the same way as for a standard system. Ours is a Wide system, meaning that the chainset offers wider stance arms and chainrings than usual to provide space for larger tyres. I've been using 2x with a 43/30-tooth chainset and a 10-36 cassette. It's a 12-speed system that's available in 1x (single chainring) and 2x (double chainring) options. We'll go through the individual components in turn, but first let's look at what the groupset as a whole offers.
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