Here are the power meters that will fit your SRAM GXP road crankset, depending on which version you have:
Left Crank Arm Power Meter
Most SRAM GXP cranks:
Stages Cycling makes the Stages Carbon GXP for SRAM Road Power Meter which is compatible SRAM GXP road cranksets. This power meter replaces your left side crank arm and measure left leg power.
Please note, whenever you are installing a left side power meter crank arm, you need to confirm you have 10mm of clearance between the left crank arm and the chainstay in order for the sensor to clear. Please see the image below.
Pros: Easy to install, don’t have to change crankset
Cons: Measures left leg power only
Spider Power Meters
SRAM GXP 3-bolt:
power2max NGeco SRAM Road Power Meter
If your SRAM crankset uses the 3-bolt interface (image below), you can also use the power2max. This power meter measures power (both legs) at the crank spider. power2max makes some of the most reliable power meters we sell and it’s a great way to add power to these SRAM cranks.
Sigeyi AXO SRAM Road Power Meter
The Sigeyi SRAM Road power meter is very similar to the power2max above. It’s a dual-sided power meter spider that bolts directly to SRAM GXP 3-bolt cranks. It is one of our most popular power meters and is also a bit more affordable than the power2max so it’s definitely an option worth considering.
RED D1 and Force D1 GXP 8-bolt:
SRAM Force AXS Power Meter Spider
The SRAM Force AXS Power Meter Spider bolts directly on to RED D1 and Force D1 GXP 8-bolt cranks. It uses a 1-piece integrated power meter and chainring design, which makes it lightweight and stiff. It measures power from both legs and features Quarq’s premier DZero power measurement technology which promises accurate and consistent power readings regardless of the climate or conditions.
SRAM RED/Force AXS 107 BCD Power Meter Spider
The SRAM RED/Force AXS 107 BCD Power Meter Spider is similar to the version above, however it uses a 107 BCD and replaceable chainrings. It is not as light and stiff as the version above, however because it uses replaceable chainrings, it will last longer. In addition, it can be used with 1x or 2x chainrings.
Pros: Moderately priced, VERY reliable, don’t have to change crankset, measures both legs
Cons: None
Power Meter Pedals
All SRAM GXP cranks:
Power meter pedals can be installed on any crankset. They are reliable, accurate, easy to install and can be moved between bikes. We carry every power meter pedal available including ones from Favero, Garmin, SRM/LOOK and Wahoo. This includes both single- and dual-sided versions as well as pedals for SPD-SL, LOOK Keo and Speedplay cleats.
Pros: Easy to install, works on any bike, can move from bike to bike, don’t have to change crankset
Cons: None
Will any of these fit my truvativ cranks or do I need a BB too? Thanks, Sharon
Hi and thanks for the question,
As Truvativ has made quite a few cranksets and this may take a little bit of back/forth to sharpen this pencil, please send a driveside pic of your crankset and what ideally you’re looking for to https://powermetercity.com/contact-us/
Thanks,