There are several power meters that will fit a SRAM GX DUB MTB crankset. Some of these will measure left side power, whereas other options will measure power from both legs. Dual-sided versions usually cost a bit more.
Power Meter Spiders
power2max NGeco SRAM MTB Power Meter (staff favorite)
The power2max NGeco SRAM MTB Power Meter is one of our go to power meters for SRAM MTB DUB cranksets. It’s accurate, reliable, measures the power from both legs and allows you to keep your current SRAM crankset. In order for it to fit, you need to ensure you have a direct mount SRAM crankset or a modular SRAM crankset that uses the 3-bolt interface. Please note, the power2max uses a 104 BCD chainring configuration. So you will need a power2max compatible MTB chainring as well.
Sigeyi AXO SRAM MTB Power Meter (staff favorite)
Sigeyi also makes a 3-bolt power meter spider for SRAM MTB cranksets. It has quicky become one of our best-selling power meters. It has some great customer feedback and is a bit more affordable than the power2max or SRM options.
Like the power2max and Sigeyi above, the SRM SRAM Power Meter is a spider-based power meter that fits SRAM MTB cranksets that use the 3-bolt interface. The SRM fits both standard and Boost configurations, features +/- 1.0% accuracy, a 2-year warranty and can fit rings as small as 32T.
This power meter uses a 104 BCD chainring configuration. So you will need a compatible chainring to use with it.
Power Meter Pedals
MTB power meter pedals are also a great option as they can easily be installed on any MTB crankset and can be moved between bikes if necessary. We carry every option available including the Favero PRO MX, LOOK X-Track, Garmin Rally XC, SRM X-Power and SRM X-Power Flat Pedals. One drawback here however is the price, especially with the dual-sided versions. MTB power meter pedals are on the expensive side compared to other options.
Pros: Easy to install, works on any bike, can move from bike to bike, don’t have to change crankset
Cons: Some versions are pricey