As my Powertap hub has died I've been trying to consider what may be a good replacement. The Power2Max MTB power meter looks like a possibility. One nice thing about it is that it uses an accelerometer for cadence so you don't need a cadence magnet attached to the frame for it to work.
https://www.power2max.de/europe/en/Produkt/power-meters-en/rotor-3d-mtb/
DCRainmaker review of road version:
https://www.dcrainmaker.com/2013/01/power2max-power-meter-in-depth-review.html
Has anyone tried one and how does it hold up in bad weather? Riding in the UK getting soaked is unavoidable.
For my bike I'd probably go for a Rotor 3D crank (alloy rather than carbon crank arms so can be welded and modified) in a triple chainset version with a 169mm q factor, allowing me to keep my current setup of 44/33/23 front chainrings.
I have to use a modified left hand crank as I'm unable to use a normal length crank due to my knee not bending. I also use Rotor Q ring oval chainrings. Would a modified crank and oval rings result in inaccurate power readings?
This picture shows my current modified crank, which is used with a Shimano Deore XT chainset. I'd have to get a new one made to match the Rotor cranks. It has a 75mm crank length and a 50mm swing crank. The right hand crank is a standard 175mm crank with no alterations.
Swing crank explanation:
https://www.highpath.net/highpath/cycles/swingcrank.html
The swing crank allows you to pedal without bending your knee as much as normal.
.
https://www.power2max.de/europe/en/Produkt/power-meters-en/rotor-3d-mtb/
DCRainmaker review of road version:
https://www.dcrainmaker.com/2013/01/power2max-power-meter-in-depth-review.html
Has anyone tried one and how does it hold up in bad weather? Riding in the UK getting soaked is unavoidable.
For my bike I'd probably go for a Rotor 3D crank (alloy rather than carbon crank arms so can be welded and modified) in a triple chainset version with a 169mm q factor, allowing me to keep my current setup of 44/33/23 front chainrings.
I have to use a modified left hand crank as I'm unable to use a normal length crank due to my knee not bending. I also use Rotor Q ring oval chainrings. Would a modified crank and oval rings result in inaccurate power readings?
This picture shows my current modified crank, which is used with a Shimano Deore XT chainset. I'd have to get a new one made to match the Rotor cranks. It has a 75mm crank length and a 50mm swing crank. The right hand crank is a standard 175mm crank with no alterations.
Swing crank explanation:
https://www.highpath.net/highpath/cycles/swingcrank.html
The swing crank allows you to pedal without bending your knee as much as normal.
.