I have been hoping to get a power meter on my XC bike with a SRAM Eagle drivetrain for a while now, but can’t seem to find many options. It seems like there are more and more affordable power meters available (i.e. Stages, 4iiii) but I can’t seem to find many for my SRAM drivetrain other than Quarq …

Does anybody know if a M8100 crank works with a M9000 or M9020 crank arm? I would do the left only given the lower cost, but the M9000 cranks cost $450+. An M8100 is like $150.

I went down this same rabbit hole as I’m putting this on a MT511 (OEM Deore with 4-bolt spider). The difference between x000 and x020 is 6mm of “q-factor” (x030 are +9mm), which is measured on the outside of the crankarm where the pedal spindle meets the arm. The difference is probably on the spindl…

I just found this info, which seems to indicate that you can’t mix and match Mx000 and Mx100 crank arms and cranksets between generations due to a change to the spine interface depth. Bah! [image] What power meter will fit my Shimano XT MTB crankset? There are several power meters that …

You also have to be careful as chainline is different among some of those cranks too

Hmmm… that’s a new detail for me. We’ll see how my M9020 / M5100 series mix goes later this week. [image] XTR cranks and 4iiiii Power meter clearance Bought a 4iiiii for my 2018 Pivot Les Ss, my stages finally is toast. The sensor is not clearing the left lower chanstay. No spacer on l…

I ended up buying a Sigeyi AXO chainring power meter for my SRAM cranks. It only costs $350 and means I don’t need a new crank, plus I get dual sided power and a 50 hour rechargeable battery. GPLama really rated it pretty good and I found other positive experiences. Only downside is it might need a…

Well the M9020 fit my OEM Boost M6100 / M5100 series crank. The center preload nut is concave on the XTR unit, so I put a 2.5mm BB spacer on the NDS side to compensate. You might not need to do this with a normal crank. FYI - the OEM MTB cranks are weird and may have a decent q-factor difference L/…

I had to go with the Power2Max on my MTB. There was not enough clearance for the Stages SRAM crank arm to clear my frame with the battery that sticks out on the back of the crank arm. Also the power2max will measure both left and right power since power is measured at the chain ring.

So I got the Sigeyi AXO. I found it to be great and didn’t need any correction to be accurate. [image] Sigeyi Power meter? Equipment I finally found time to install and test the Sigeyi SRAM MTB AXO vs my Assioma Duos on my mountain bike and take them for a ride. I tried…

I’m recently got the newer, slimmer 4iiii on my xx1 carbon crank. Works great. Had to send in the non-drive side arm. They mounted it and sent it back in 10-ish days.

Affordable power meters for SRAM MTB drivetrains?

Equipment

huges84 August 21, 2022, 1:54am 26

So I got the Sigeyi AXO. I found it to be great and didn’t need any correction to be accurate.

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Affordable power meters for SRAM MTB drivetrains?

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