XX SL AXS T-Type Spider Powermeter DUB MTB Wide Crankset

What Our Gearhead® Experts Are Saying:

"The XX SL AXS T-Type Spider Powermeter DUB MTB Wide Crankset sits at the top of the SRAM mountain bike power meter lineup for good reason: dual-sided measurement at plus or minus 1.5% accuracy, MagicZero auto-calibration that removes any manual workflow from the pre-ride routine, and Flight Attendant integration that puts power data at the center of a fully connected AXS build. The threaded direct mount spider is the engineering detail that makes the accuracy possible without a weight penalty, and the 200-hour CR2032 battery life means this is not a component you are managing between races. For any rider building or racing on a full AXS platform, this is the crankset the system is designed around."

The SRAM XX SL AXS T-Type Spider Powermeter DUB MTB Wide Crankset occupies the top position in SRAM's mountain bike power meter range, and the specification reflects that position at every level of the build. The dual-sided measurement architecture captures power input from both left and right crank arms independently before calculating total watts, delivering a complete and accurate picture of output that informs both real-time pacing decisions and post-ride training analysis with a precision that single-sided systems structurally cannot match.

The threaded direct mount spider is the mechanical foundation that makes the accuracy possible. By creating a rigid, repeatable interface between the crank arm and chainring, it eliminates the flex and movement that looser mounting systems allow, which directly impacts measurement consistency across varying torque loads and terrain inputs. MagicZero automatic calibration runs in the background continuously during use, checking and correcting for temperature drift and positional variation without any manual zero-offset procedure before or during the ride. Accuracy is held to plus or minus 1.5%, a standard consistent with the top tier of power measurement technology available across any cycling discipline.

The aluminum and carbon crank arm construction brings the weight to 535 grams for the 170mm, 32T configuration, which places this crankset at the leading edge of the weight-to-performance envelope for a dual-sided power meter in the mountain bike segment. The CR2032 battery delivers 200 hours of operating time, the SRAM Direct Mount chainring interface keeps future ring changes straightforward, and full Flight Attendant AXS compatibility integrates the crankset into the complete ecosystem of electronic shifting and suspension response for riders building around the full SRAM AXS platform.