Stages Shimano Ultegra R8000 Dual-Sided CranksetJanuary 16, 2023
Left/right power measurement, +/- 1.0% accuracy and dual ANT+|Bluetooth SMART
Stages Shimano Ultegra R8000 Dual-Sided Crankset
The Stages Shimano Ultegra R8000 Dual-Sided Crankset features Stages proven performance and dependability on a Shimano Ultegra R8000 crank. This unit is accurate to within 1.5% and like all Stages power meters, features dual ANT+ and Bluetooth SMART compatibility and runs off of easy to replace CR2032 batteries. In addition, the Stages R8000 Dual-Sided Power Meter is extremely lightweight, adding only 35 grams to the crankset.
However the key feature on this power meter is its ability to measure left/right power. With a power sensor on both crank arms, the power meter can measure the force generated by each leg individually and transmit this data in real-time to your bicycle computer. This left/right power measurement is all new to Stages power meters and further makes the Stages R8000 Power Meter a valuable training tool!
Key Product Details
This power meter is compatible with 2×11 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8000 crankset on their bike and therefore, it’s an easy swap. However, it can be used on any road bike as long as its 2×11 with a 24 mm bottom bracket. See Compatibility tab for more information.
This Stages power meter has a power sensor on both crank arms and measures power from both legs. It is also able to measure your left vs. right leg power.
Dual-leg power measurement, can measure left vs. right leg power, accurate to within +/- 1.5%, lightweight at only 35 grams of added weight, 200+ hours of battery life, CR2032 user-replaceable battery, ANT+ and Bluetooth compatible. See Specs tab for more information.
Advice From Our Staff:
This is a great option for customers with a Shimano R8000 drivetrain that want to keep an OEM R8000 crankset on their bike but add power. We also like that fact that this crankset measures power from both legs and as well as provides left vs. right leg power.
Options For This Power Meter
- Chainrings: 50/34 | 52/36 | 53/39
- Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm
Other Versions to Consider
Left Side R8000: We also sell the Stages Shimano Ultegra R8000 Power Meter which is a left side crank arm only. It is more affordable, however it only measures left leg power.
Bottom Bracket: This power meter is compatible with 2x11 road drivetrains and 24 mm Shimano bottom brackets. Most customers that buy it already have a Shimano R8000 crankset on their bike and therefore, it's an easy swap. However, it can be used on any road bike as long as its 2x11 with a 24 mm bottom bracket.
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 Ultegra R8000 Crankset Specs
|Name||Stages R8000 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||24 mm|
|Q Factor||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
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
- Phillips screwdriver