Ive got 1 of these on the way, will report in when it arrives. Have ordered the SRAM 3 bolt 5x110 spider and some ZRACE 165mm cranks for a TT build. Dont have power pedals/hub to do a direct comparison, but I have been riding with Quarq power for nearly 4 yrs so have a pretty good idea of power vs RPE & speed, particularly around the local cycle circuit
So far so good on the Xcadey spider. Calibrates well and consistently. Never drifts by more than a few points on calibration, seems to line up with RPE well. Running it 1x and zero issues.
Have done about 200km. Can provide links to strava rides if you want to look closely at the power/cadence (i dont look that closely)
Short cranks are awesome on the TT bike, can get a fair bit lower
Just thought I would put my experiences of the XCadey XPower-S for Shimano 12 speed mtn bike cranks:
I ordered it on 11/5, and it arrived at my house in TN on 11/24. They provide you with a 4PX tracking link, which ends up being a mirror of a DHL number that gives you much more accurate shipping information.
The spider itself weighs 99 grams. Adding the 34 tooth stone 104 bcd chainring and bolts that XCadey provided, it came out to 144 grams. Of note, the stone chainring is a narrow/wide profile that allows the shimano 12 speed quick link to work, and doesn’t appear to be rubbing the links as wolf tooth’s website mentions.
Once everything was installed, I proceeded to attempt my best GPLama impression. I updated the firmware, threw the mtn bike on my kickr core, stomped on the pedals a bunch times, calibrated the power meters, and started pedaling. The first ride was interesting, with some large overshoots during the sprints and some differences between the kickr and the spider, even as I stopped throughout to spin down/calibrate.
I then dove a little deeper into the rabbit hole by putting some assioma pedals on the mtn bike and testing all three together (after putting a 95% value into the XCadey “power offset” value). The pedals and the spider lined up pretty good, with the kickr showing some differences. I don’t know if this is because of drivetrain loss due to running a 12 speed full suspension mtn bike on an 11 speed kickr core or what, but I plan on chasing this down tonight. I also plan on trying to ride the mtn bike outdoors a little bit to get some power spikes and see what it looks like.
Seems a bit disconcerting as GPLama had to use 105%. It seems like they still have issues with setting this thing up correctly and consistently. 10% (95% vs 105%) is a huge range.
@GPLama did they respond to your report of being offset?
Yeah, I watched that video and noticed mine was 5% offset in the opposite direction as well. Ive contacted XCadey, and they want you to either message them on facebook or whatsApp, so I will keep the group updated on how that goes.
I ordered mine (Race Face version) last week and I am very interested with your conclusions…
I will be able to compare it with my Elite Direto trainer power reading and I am actually able to compare the trainer as well to crank based dual powermeter from my road bike. So I am looking forward for the number comparisons…
Nope. I’d like to get another unit and see how it stacks up.
I ran the assiomas against the kickr core tonight on the road bike using my waxed chain / etc, and everything matched up nicely. I cant run the xcadey on the road bike, so I think I am going to chalk up the differences on the mtn bike to drivetrain loss, suspension bobbing, etc for now. I am sure I will get bored later and run another set of tests.
Over 1000km now on the Xcadey, mostly on the road and a few TR workouts on the trainer. Still no issues, still seems to match up nicely with RPE and known segments & speeds
Id definitely buy another if I was in the market based off my personal experience so far