Stages Shimano DURA-ACE 9100 Dual-Sided CranksetJune 22, 2022
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.
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
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|
|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|
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