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Pioneer Left Leg Power Meter for Consumer Supplied Crank
Pioneer Left Leg Power Meter for Consumer Supplied Crank
Pioneer Left Leg Power Meter for Consumer Supplied Crank

Left Leg Power Meter for Consumer Supplied Crank

  (3 customer reviews)
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Power pack.

There's no denying the effectiveness of training with power, and now you can add Pioneer's proven technology to your existing crank with this Left Leg Power Meter Kit. It contains instructions and packaging for sending your left crank arm directly to Pioneer where their professional technicians do a precision install and calibration of their Lightweight Power Sensor before sending it back to you. Turnaround time is about 5 to 10 days and the kit is compatible with Dura Ace 9100, 9000, Ultegra R8000, 6800, 105, XTR Trail, XT, and Cannondale SISL2 cranks.

It utilizes a Lightweight Power Sensor that measures force vectors every 30° of crank rotation, or in other words, 12 points of measurement per pedal stroke, with each point recording a force and a direction. When paired up with Pioneer’s Touchscreen Cyclo-Computer, this information is analyzed and displayed in real-time to show you not only how much power you’re putting out but also, by utilizing the vector data, how efficient you’re being with your power. After all, putting out 400 watts for 20 minutes certainly sounds impressive, but it might not amount to much if you’re applying all that force in any other direction than what is optimal to spin the crank around.

The Pioneer Lightweight Power Sensor adds just 22 g to the standard weight of the crank. Estimated operating time is 180 hours on one user-replaceable CR2032 battery. Customer is responsible for shipping costs to Pioneer. Return shipping is prepaid.

Note: The power sensor adds 10 mm to the inside width of the standard crank arm, which may cause interference on some frames. Please measure before installation to ensure compatibility and prevent frame / component damage.

Signature will be required when taking delivery of this product.

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by JM
Cycling Enthusiast
1 of 1 customers found this review helpful.

I have been riding with the Pioneer left side for couple of months now and it has worked perfectly. I have had zero issues with calibration, connections to my Garmin Edge 1000, or connections to my PC based ANT I use for inside training rides. So far I haven't noticed any significant differences in power readings between my bikes that have Stages PMs but I haven't really studied the data closely. The Pioneer factory warranty is 2 years vs 1 year for Stages. Round trip from Portland, OR to San Diego to get the PM installed on my left crank arm was 7 working days.

Reviewed 2/6/2017
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Works Great
by Eric
Daily Commuter
Queens, NY
0 of 1 customers found this review helpful.

I've wanted to track my power for some time but power meters have always been prohibitively expensive. This was a great option. When I got the package, I just needed to ship out my crank arm with the packaging. Roughly a week later and got the crank arm back. So far it seems to be great with tracking power. It connected with no issues to my GPS.

Make sure you have at least 10mm clearance between the crank arm and the frame of your bike or it won't fit!

Reviewed 10/22/2018
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Econmical entry-level power meter
by Paul
Competitive Racer
2 of 2 customers found this review helpful.

I bought this kit to retrofit a crankset I already owned, rather than shelling out for a new crankset. The sensor paired quickly with my Wahoo head unit. Relying on left-leg power data does make it somewhat hard to maintain a steady level of effort, and you might lose some accuracy if you're right-leg dominant. However, this option is fine for a basic and economical training tool...One caution my kit contained outdated shipping instructions, so UPS bounced it back to me after 2 weeks as undeliverable. Pioneer's service rep helped me resolve this, but you might want to contact Pioneer in advance to confirm their address and avoid the hassle.

Reviewed 11/29/2017
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