I’m about to go for a powermeter but I’m not really sure which brand to chose. (Rotor Power or P2Max Rotor 3D+)
I Want to switch to QRings.
The Rotor Power looks nice but I couldn’t find many reviews on the internet.
The Power2Max reviews seem rather positive and prices are lower.
Would the Rotor Power with the MAS be the better choice here or would you strongly advise against the Rotor Power?
Is MAS even that important or does a classic spider do the job just as well?
If I should go for Power2Max, is the Type S worth the extra money?
Or is a powermeter with QRings a bad idea?
I’d appreciate all input that could help me with my decision.
P.S. Garmin Vector is no option because I love my Speedplays and use Shoes with a special Speedplay sole.
I use race and training wheels and do some draft legal so Powertap+Mavic Open Pro+Wheel Cover isn’t really an option.
I have both, the rotor power is limited to 3 sizes, the p2m can be put on any length rotor cranks. I plan on purchasing the S-Type p2m to use 110 bcd Qrings. Again, I’m buying another p2m, hope that answers your question.
I’ve just ordered a Power2Max Type-S to place on my Rotor 3D crank on my Tri bike. I can’t say if MAS is worth or not. I don’t currently have a MAS spider, nor have I adjusted my Q-rings on either my bikes since I’ve installed them in the default position. Could I gain more power? Potentially, but without a powermeter on the bike, it’s hard to know for sure. I also looked at the Rotor Power meter, but for the cost, I would have to swap out my current Rotor 3D crank and bottom bracket for it to work on my tri bike, plus I can potentially get two Power2Max powermeters for less than the cost of the Rotor and have power on both of my bikes. The Power2Max also lets me utilize my existing Rotor 3D crank (and BB) on my bike.
As for as Type-S or not, I went with Type-S because I run Aero Q-rings and didn’t want any issues with getting them installed.
Thanks to everyone so far.
So it seems like I can’t go wrong with a p2m.
The Type-S would be a smart choice then, because I also wanted to get the aero q-rings.
This leaves me with another question.
I own a Garmin FR 910xt which I use for all my training and if I remember correctly I’ve read some stuff about the ANT+ being weaker on the 910xt which could lead to connection issues between both devices.
Has anyone who uses a p2m and a 910xt had these issues?
Even if that wouldn’t be much of a concern as I could get a p2m and an Edge 510 and still pay less than for the Rotor Power.
If I may :-). We’ve had one or two reports where users of the 910xt had some drop outs indoors. It is likely that this happened because of the environment - lots of things using the 2.4Ghz band (Wifi router, computers, phones, etc), reflections, and a relatively compact reception unit that has a smaller antenna than an Edge or other bike computer. I personally also use the 910XT and never had issues with it.
p2m ‘appears’ to have cracked that problem, my p2m agrees very closely with a powertap and my lemond trainer ( separate tests of course ) running my Q-ring set. all three were within 2w avg power over the initial test runs before I retired my hub. I’m guessing the inertia fan system the lemond uses would be the least sensitive to crank discrepancies, with the crank most sensitive and the PT somewhere in the middle.
more learned persons are welcome to correct me here,
Cliff notes: my P2M works fine with Q-rings as far as I can tell.
i have rotor power cranks on both my road bike and tt bike and they have both been faultless and never skipped a beat and i’m pretty sure the reading are very accurate. i’ve never used to P2Max so can’t compare