4iiii PRECISION 2 PRO Shimano GRX RX810 Dual-Sided Power Meter

  

4iiii PRECISION 2 PRO Shimano GRX RX810 Dual-Sided Power Meter. The 4iiii PRECISION PRO Shimano GRX RX810 Dual-Sided Power Meter combines 4iiii's patent pending 3-D tri-axial strain gauge technology with Shimano's GRX RX810 crank. The result is an accurate, lightweight and highly reliable power meter crankset that is capable of tacking the most grueling workouts or races. The dual-sided 4iiii GRX crankset features independent left/right power measurement. With a power sensor located on the inside of both crank arms, the power meter can measure the forces generated by each leg individually.

The 4iiii is also extremely lightweight, adding approximately 20 grams to the Shimano GRX crankset. The power meter is compatible with both ANT+ and Bluetooth SMART devices and is accurate to +/- 1.0%. This power meter uses a 24 mm Shimano spindle and must be used with a 24 mm Shimano bottom bracket.

Tip - If you already have a Shimano GRX RX810 or RX600 crankset on your bike, then this power meter will fit your bottom bracket perfectly as all Shimano cranksets use a 24 mm spindle. 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. 4iiii PRECISION GRX Dual Side. Left or Both Legs Measured. Expert advice and customer service in case you need any help.

At Power Meter City, we focus on power meters and related accessories and components. Our focus on these products means we can offer you the best possible selection, advice and service. We have been in business since 2016 and are based in southern California.

We are an authorized dealer of every product we sell. This item is in the category "Sporting Goods\Cycling\Bicycle Electronics\Power Meters". The seller is "powermetercity" and is located in this country: US.

This item can be shipped to United States, Denmark, Ireland, Netherlands, Slovakia, Slovenia, Lithuania, Portugal, Malta, United Kingdom, Cyprus, Australia, Austria, Hungary, Sweden, Spain, Estonia, Belgium, Finland, Bulgaria, Poland, Luxembourg, Czech Republic, Canada, France, Germany, Latvia, Italy, Greece, Romania.

• Crank Arm Length: 170 mm
• Chainring size: 48/31
• Model: PRECISION 2 PRO GRX RX810 Dual-Sided
• Material: Aluminum
• Sport/Activity: Cycling
• Power Source: Batteries
• Type: Crankset
• Features: Bluetooth SMART, ANT+, Dual-sided, Cadence, Downloadable, Power
• Color: Black
• Accuracy: 1%
• Indoor/Outdoor: Indoor/Outdoor
• Measurement Provided: Dual-Sided
• Brand: 4iiii Innovations
• Manufacturer Warranty: 3 years