4iiii PRECISION Power Meter For Shimano DURA-ACE 9100
Josh Matthew June 1, 2019$549.99
The 4iiii PRECISION is now available in Shimano’s latest evolution of the FC-R9100!
Description
4iiii PRECISION Power Meter For Shimano DURA-ACE 9100
Shimano’s lightweight evolution of the FC-R9100 is now available as a 4iiii PRECISION power meter! Used by the World Tour teams Quick-Step Floors and Bora-hansgrohe, the 4iiii PRECISION Power Meter for Shimano DURA-ACE 9100 is the lightest, most affordable direct force power meter available. The added weight of the 4iiii PRECISION is only 9 grams. Even better yet, it is accurate to within +/- 1.0%.
The 4iiii PRECISION is a left-only crank arm-based power meter and replaces your current left side crank arm. The 4iiii takes the power that is generated by your left leg and doubles it in order to determine your total power output. All PRECISION models run off a CR2032 battery, feature approximately 100 hours of battery life and support both ANT+ and Bluetooth SMART wireless protocols.
Highlights
• Lightweight: The lightest direct force power meter available adding only 9 grams of weight
• Dual ANT+/BLE: Compatible with both ANT+ and Bluetooth SMART devices
• Accurate: Accurate to within 1.0%, putting it in the top tier of power meters
• Easy Installation: Quick and easy to install. Just swap our your left crank arm and you’re done!
Options
Crank arm lengths: 165 mm | 170 mm | 172.5 mm | 175 mm
Compatibility
The 4iiii PRECISION Power Meter is compatible with all Shimano Hollowtech II road cranks.
In the Box
- 4iiii PRECISION Power Meter For Shimano DURA-ACE 9100
- 2 2032 coin cell batteries
- Quick Start guide
Specs
| Name | 4iiii PRECISION DURA-ACE 9100 |
| Bike Type | Road |
| Location of Power Measurement | Crank Arm |
| Left or Both Legs Measured | Left only |
| Independent Left/Right Measurement | No |
| Installation | Easy |
| Communication Protocol | ANT+ and Bluetooth SMART |
| Claimed Accuracy | +/- 1.0% |
| Weight | 9 grams (added weight) |
| Battery Type | CR2032 coin cell |
| Battery Life | 100 hours |
| Method of Cadence Measurement | Accelerometer |
| Warranty | 1 year |
cendres (verified owner) –
Dollar for dollar, I think this is the best single-sided PM going for those on a budget. It’s been 100% reliable in all sorts of messy conditions and has proven to match up very well with power numbers from my Kickr. PM City shipping was super quick and pricing was very fair. Will be a repeat customer.
Power Meter City –
Hi Cendres. Thanks for the review! Not only are you getting accurate, consistent data…but you got a DURA-ACE 9100 crank arm to boot – not too shabby 🙂 We hope you continue to enjoy it.