Stages Shimano DURA-ACE 9100 Dual-Sided Crankset
June 22, 2022$1,079.99
Stages dual-sided power with +/- 1.0% accuracy on a Shimano 9100 crankset
Stages Shimano DURA-ACE 9100 Dual-Sided Crankset
The Stages Shimano DURA-ACE 9100 Dual-Sided Crankset is the company’s top of the line power meter. Using Shimano’s leading DURA-ACE 9100 crankset, this Stages power meter features dual left/right power measurement. With a power sensor on both crank arms, the power meter can measure left and right leg power independently and transmits this data in real-time to your bicycle computer. This left/right power measurement is all new to Stages power meters and makes the Stages 9100 Power Meter a valuable training tool!
Like all Stages dual-sided cranksets, this unit is accurate to within 1.5% and features dual ANT+ and Bluetooth SMART compatibility and runs off of easy to replace CR2032 batteries. In addition, the Stages 9100 Dual-Sided Power Meter is extremely lightweight, adding only 35 grams to the crankset.
Options
Chainrings: 50/34 | 52/36 | 53/39
Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm
Tools Needed for Installation
You will need the following tools for installation of this product. You can purchase many of these commonly used tools in our store.
- 5 mm Allen key
- Shimano Crank Arm Cap Tool (sold by us separately)
- Phillips screwdriver
Compatibility
Crankset: The Stages DA 9100 Dual-Sided Crankset uses a 24 mm Shimano road spindle and must be used with a 24 mm Shimano bottom bracket.
Tip - If you already have a Shimano crankset on your bike, then this power meter will fit your bottom bracket perfectly as all Shimano cranksets use a 24 mm spindle.
Check Frame Clearance: Crank-arm based power meters like this one attach a sensor on the inside of the left crank arm. On some bikes, there is not enough room between the left crank arm and the chainstay for the sensor to clear the frame. Therefore, you should make sure you have at least 10 mm of clearance between the left crank arm and the chainstay - and that you don't have a bottom bracket mounted rear brake (used on some aero and TT bikes). The important area to measure is right in the middle of the crank arm. Please refer to the image below.
If you find that you have around 7-9 mm of clearance, what many people will do is simply install a 1 or 2 mm bottom bracket spacer (between the left crank arm and the frame), which will give them the clearance they need.
Stages Shimano DURA-ACE 9100 Crankset Specs
| Name | Stages DA 9100 Dual-Sided |
| Bike Type | Road |
| Location of Power Measurement | Crank arm |
| Left or Both Legs Measured | Both |
| Independent Left/Right Measurement | Yes |
| Installation | More involved (60 min. estimated) |
| Crank Arm Material | Aluminum |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 1.5% |
| Active Temperature Compensation | Yes |
| Weight | 35 grams (added weight) |
| Battery Type | CR2032 coin cell |
| Battery Life | 200+ hours |
| Method of Cadence Measurement | Accelerometer |
| BCD | 110 4-bolt asymmetric |
| Spindle Size | 146 mm |
| Q Factor | 146 |
| Warranty | 1 year |
In the Box
- Stages Crankset Power Meter
- 2 2032 coin cell batteries
- Lifetime access to Stages Link for power meter management and firmware upgrade
- 2 months free access to Stages Link premium training and coaching features
- User Guide
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Dr. Miguel Montilla (verified owner) –
The Stages Power Meters were super easy to install and to pair with my Garmin 1030 head unit. They were also really easy to calibrate through the Garmin. They currently work flawlessly through the Garmin. Finally really pleased with all the data I get now that I have the ability to input my watts and cadence along with my heart rate.
Power Meter City –
Hi Dr. Miguel Montilla. Thanks for this amazing review on your Stages DA 9100 Crankset. We are glad it worked flawlessly with your Garmin too! Keep up the good work! Please let us know if there is anything else we can do!
Steve Brown (verified owner) –
This is my third Stages power meter from Power Meter City. The first two were Ultegra replacement cranksets (dual-sided power) for older Madones that I just upgraded to 11 speed. This one is the Dura-Ace 9100 dual-sided crankset to replace the almost new 9100 crankset that came with my Trek Emonda. The only decision was whether to buy the factory installed complete crankset or to send my existing Shimano 9100 crankset in for the upgrade by Stages. Fortunately, with Power Meter City pricing, it was a pretty easy decision. I just bought the new, complete crankset and I’ll sell my almost-new 9100. It’ll be about the same price.
You might wonder why I use crank-based power meters instead of pedals, since I have multiple bikes. Well, I had Powertap P1 Pedals for about a year and a half and I did like them. They worked very well and were easy to move from bike to bike. But, once I was hooked on power as a training metric, I decided it was worth the cost for me to just have crank-based power meters, so I could go back to using Speedplay pedals… which I love!
So, Stages power meters all-around… and all from Power Meter City!
Power Meter City –
Hi Steve. Thanks for the great review on your Stages DA 9100 Crankset. Yes, a big advantage to crank-based power meters is that you can run the pedals of your choice. I’m glad it’s working out for you and thanks for being a great customer!
Matt Bader (verified owner) –
The Stages Dual L/R DA 9100 Crankset is great! Really happy with the upgrade from an earlier generation DA Crankset that did not have power. Instructions are a quick read and will save time calibrating the power meter if you are unfamiliar with the process like I was. After calibration the Stages DA 9100 Crankset Power Meter was dead on when compared to my smart trainer. So far very pleased with my purchase.
Power Meter City –
Hi Matt. Thanks for the product review! Yea, this is a tough PM to beat. You get a Shimano DA 9100 crankset (best they make) with L/R power and all the bells and whistles (BLE, lightweight, etc.) We hope you enjoy it!
jlimo (verified owner) –
Installation was a breeze, very easy. It is working fine and is simple ‘set and forget’, I’ve had no issues so far. The only reason I didn’t give it a 5th star is because the calibration is a bit finicky. It often spits an ‘error’ and I have to try a few times before it completes. I have used it for about 1,500 km now and I am still waiting to see how long the batteries will last.
Power Meter City –
Hi Jlimo. Thanks for the review. The Stages DA 9100 Crankset has been a very popular product for us so I’m glad you’re enjoying it. We have one on a bike here and it’s been pretty much flawless. Let us know what you find on the battery – it should be good for 175-200 hours. Also, on calibration, just make sure you have that left-side crank arm pointed directly down before you click “calibrate”.