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Pioneer Shimano Ultegra 6800 Powermeter Crankset

Pioneer Shimano Ultegra 6800 Powermeter Crankset
Sale $999.95$1,299.00 23% Off

Item # PNR0001

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  • Grey, 170mm, 5034 ($999.95)
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  • Grey, 170mm, 5236 ($999.95)
  • Grey, 1725mm, 5236 ($999.95)
  • Grey, 175mm, 5236 ($999.95)
  • Grey, 1725mm, 5339 ($999.95)
  • Grey, 175mm, 5339 ($999.95)
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Item # PNR0001

Description

Increase efficiency.

Partnering with the Belkin professional team for the past two years, Pioneer has had the opportunity to test and refine its latest powermeter design with some of the most demanding cyclists in the world. The result is a revamped system mated to Shimano's Ultegra 6800 Powermeter Crankset, giving you Pioneer's fully integrated, ultra-sleek, and exceptionally accurate dual-leg strain gauges and transmitter package.

Pioneer's powermeter system measures pedaling force, direction, and overall efficiency via its dual strain gauges that have been bonded to the left and right crankarms. The transmitter itself is bolted directly to Shimano's spider using the original crankset bolts, maintaining an unobtrusive profile that smoothly blends into the spider's arms. These sensor units on the inside of each crank arm are then able to capture 12 points of rotation per leg, at 30-degree intervals. The sensors measure minute changes in the shape of the crank caused when force is applied while pedaling. From this, force is calculated in both the direction of rotation and the radial direction. The combination of these two force components tells us the direction in which the total force is being applied, which is shown using the system's force vectors. Also, a magnet ring that attaches to the bottom bracket measures the position of the crank, allowing precise display of the force vectors at every 30-degree interval throughout rotation.

The force vectors for one full rotation are then wirelessly transmitted to your ANT+ head unit, either third party or Pioneer's SGX-CA900 and 500 models, displayed as pedaling efficiency. The idea is to target these efficiencies for improvement in training and racing. When pedaling efficiency is high, most of the rider's power is being used to rotate the pedals. So, the force measured in the direction of rotation at each of the 12 points is combined to give the total power output for that rotation. This system is more immune to the inaccuracies found in other powermeters that don't gather information at 12 force vectors.

This data is then stored in long file form that can be accessed and analyzed after the ride. You're able to upload your log data to Pioneer's Cyclo-Sphere website, which lets you analyze left and right side pedaling efficiency, power, and force vectors, among many other types of data displayed in easy-to-understand graphs and numerical displays.

For the crankset that the system is paired with, the Shimano 6800 borrows the best technology from its Dura-Ace brother. On the surface, the FC-6800 is a complete departure from the traditional aesthetics of prior Ultegra. Gone are the days of the five-arm spider, and the necessity for a separate compact crankset has also fallen by the wayside. Instead, 6800 features a shift to a new four-arm spider design. This occured for several reasons, but most notably it's because the four-arm spider matches rigidity of Dura-Ace cranks while shedding close to 26g of weight over 6700. Also similar to Dura-Ace 9000, the 6800 cranks were built with Shimano's Hollowtech II construction. Over the past few iterations of Dura-Ace, this manufacturing methodology has played an integral role in attaining weight reduction without sacrificing Dura-Ace's superior stiffness.

The Pioneer Shimano Ultegra 6800 Powermeter Crankset is available in sizes 165 to 175mm, with the following chainring configurations: 50/34t, 52/36t, and 53/39t. The powermeter operates wirelessly with ANT+, and it's being offered as a standalone item. However, it is compatible with Pioneer's SGX-CA900 and 500 computers, or any other ANT+ compatible device.

  • Compatible with ANT+ cycling computers
  • Uploads data via Wi-Fi to Pioneer CycloSphere software

Tech Specs

Arm Length:
165mm, 170mm/ 172.5mm, 175mm
Chainring Sizes:
46/36, 50/34, 52/36, 53/39
Bolts:
4
Rings:
2
Spindle:
24mm
Compatible Components:
Shimano 11-speed
Recommended Use:
cyclocross, gravel, road cycling, triathlon
Manufacturer Warranty:
1 year

Reviews & Community

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Avg. ride time: 6h 22m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Is it possible to change chainrings on the drive side crank? Say I buy the 50/34 and want to move up to 52/36 do I have to purchase a whole new setup or can I just buy new chainrings?

Hi Ryan,



Yes it is possible to just swap out the rings later on if so desired.

Great so far!

  • Familiarity: I've used it several times

I just installed my first Pioneer on my new road bike last week, and I am very happy with it thus far.

Power numbers have been consistent and on par with my Computrainer and Tacx Bushido; I have had zero issues, granted it has only been one week, it is still electronic equipment, so I take this as a victory.

Installation was as expected, and very simple. I even used my CA500 computer to do a firmware update before first use, which was relatively easy.

I was not terribly confident in using their magnet patch on the drive-side of the bike; in case of a dropped chain, it could be torn off. So I employed a K-Edge Chain Catcher Pro w/ SRM magnet, which is a perfect solution, especially if you have low clearance where you would normally place a magnet.

Overall, the construction appears very solid, and I expect to update this at a future date with better details, and hopefully a successful experience.


Bradley Gehrig
Customer Account Manager
Office: 801–204-4541
bgehrig@backcountry.com

Hi, is this the chain catcher you used?

https://www.amazon.com/K-EDGE-Braze-Chain-Catcher-Magnet/dp/B00KO0EGBU

Avg. ride time: 4h per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

A+ Hardware and Customer Support

  • Familiarity: I've put it through the wringer

Great powermeter, by far the best of the ones I have tried. Have it paired with the 500 Pioneer head unit. It's accurate, consistent, easy to use, the cycling dynamics are unique to Pioneer but so intuitive and frankly useful. Unlike so many other units, just works flawlessly all the time.

I emailed Pioneer customer service to let them know I wanted a data field added to the unit (didn't expect much but worth a try). Got a response a few days later that it would be added in the next firmware update, and it was just a few weeks later.

Considering buying another for my other bike. Just wish they had a campy version.

Unanswered Question

I use an iPhone 6+ for my "bike computer" I have a Wahoo RFLKT+ and I understand it has an ANT+ bridge. Will this work with this combo. I mostly use the Strava App and Wahoo's app.

how to do installation ?

I am from Hong Kong and if I buy and ship to HK, how to do installation ?

My Bike is Ultegra 6700 53/39 10 speed setup and 170 crank arm length

Avg. ride time: 2h 10m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

The Insides

  • Familiarity: I've used it several times

Here's what the crank looks like inside the cap. CR 2032 batteries are easily replaceable. Two caps come in the package- one black, one red. Let me know if you have any questions or looking for the best price. My number here is 801-736-6396 x 5630 or email adewitt@competitivecyclist.com

The Insides

Hello,

I have a 2012 Cervelo S5 and I was wondering if the Pioneer power meter Ultegra 50/34 crank fit my bike.

We haven't yet seen a bike that has fit issues so it should be fine. There are 6 spacers that come with the crank (or BB) and it might take one or 2 of these to make it work.

Does this work with a 10 speed set up?

It can work with a 10 speed setup but was really not designed to, it can be a little hit and miss with perfect shifting on it. I have seen a majority of times that it has worked ok.