4iiii PRECISION 3 Left Power Meter, Shimano - GRX FC -RX810 - Options.
Note: This is a special order that we will ship in approximately a week.
A ride ready PRECISION 3 pod is already preinstalled on a brand-new Shimano crank arm at our factory. The moment you order, our fulfillment team will get it on its way to you, and you should be able to ride with power as soon as it arrives.
Important:You need to use the frame clearance pages below to ensure there is space between your crank and frame for the PRECISION 3 pods.
In The Box
Once your ride-ready PRECISION 3 powermeter arrives, it just needs to be installed on your bike using the standard Shimano crank installation process. Connect a headunit or computer, and you can start riding with power!
If the weather or climate make riding outdoors tough, your 4iiii PRECISION 3 powermeter can be used with all popular indoor-training apps, such as Zwift, TrainerRoad, Wahoo SYSTM, Rouvy, and more. Simply use your favourite app's connection procedure over ANT+ or Bluetooth Smart, put your bike on a trainer, and get riding!
Accuracy +/- 1%
Battery Type Cr2032 Coin Cell
Battery Life Up To 800 Hours
Waterproof Rating Ipx7
Cadence Range 30 - 170 Rpm
Power Range 0 - 4,000 W
Operating Temperature 0 To 50 °c
Communication Protocols Ant+, Bluetooth
Because 4iiii PRECISION 3 powermeters are mounted on the inside of your crank, there needs to be enough space between your crank and the frame for the pod to fit. Print and use the clearance guides below to check your frame.
Tip:Often a right-side power meter installation has more clearance and may be suitable if your bike does not appear to have enough space for a left-side installation.
Tip:4iiii PRECISION 3 powermeters have a much lower profile and may fit where a PRECISION does not.
4iiii PRECISION 3 power meters use both the ANT+ PWR and Bluetooth Smart Cycling Power Service standards, which makes them compatible with nearly every headunit, smartphone, or computer you wish to connect to. Check your recording device documentation for ANT+ PWR or Bluetooth Smart (also called BLE, BTLE, or BT4.0) Cycling Power Service capability.
Tip:A 4iiii Viiiiva can be used to record your workouts along with your heart rate.
A 4iiii PRECISION 3 powermeter is available ready to ride on any of the crankset configurations listed below. If your desired crankset isn't listed, we may have other products that are compatible. Use the interactive tool below to discover them.
ACCURACY IN 3D
Not everyone has the perfect pedal stroke. With +/- 1% accuracy, 4iiii is the only crank-based power meter to use 3 strain gauges to measure all forces in your pedal stroke.
ULTRA LOW PROFILE
With an ultra low profile design, the PRECISION 3 is compatible with more bike frames than ever before.
At a glance, you can now see when your power meter has turned on, performed a successful Zero-offset, or has a low battery. Although, don’t expect to see that low battery indicator for a while
Based in the foothills of the Canadian Rockies, we were tired of training tools not designed to work in our tough environment. With an IPX7 waterproof rating you can be assured that your power meter can handle the toughest conditions.
ANT+ & BLUETOOTH
Get the same numbers training inside and outside. The PRECISION 3 Powermeter is both ANT+ and BLE compatible so you can use it on your preferred head unit and favorite indoor training app.
All our products are professionally packed and shipped with tracking number and insurance. Lafo Bikes is offering you high end bikes, frames, parts & accessories that we love. We are selling only genuine products, no copy or replica. Our goal is to offer you the best price on amazing bikes.
All orders are processed within 2 business day (excluding weekends and holidays). You will receive another notification when your order has shipped. Items are shipped from our Canada or USA facilities, based on stock availability and your location.
We offer two shipping options to get you what you need, when you need it. Expected delivery times for North America are listed below:
Standard | 4-8 business days
Expedited | 2-3 business days
We also ship internationally! Please refer to our FAQ for further details.
Enjoy shopping with our 30 day money-back guarantee!
In the unfortunate event that you want to return an item, please contact our customer service department within thirty (30) days of receiving your items at email@example.com. Don’t hesitate to call us if you’re wondering if an item can be returned. We’ll gladly answer all your questions.