We use cookies to improve your experience on our website and to show you personalised content.
You can read our Cookie and Privacy policy or manage them individually.
You can read our Cookie and Privacy policy or manage them individually.
Description
Train smarter with the 4iiii PRECISION 3.0 GRX RX810 Left Arm Power Meter. The latest in the lineup from this sports technology company, the PRECISION 3.0 adds just 9 grams to your setup, has a huge 800-hour battery life and the low profile design means it works well with almost any frame.
The power meter is mounted onto a Shimano GRX RX810 left crank arm and incorporates patented Strain Gauge technology to reflect changes to pedal stroke in the power numbers. Market-leading accuracy of +/- 1%, alongside Active Temperature Compensation and IPX7 waterproofing, ensures readings are close to true outputs, and consistent no matter the conditions, indoor or out. There's an indicator light to notify you of a low battery level, to show you that the unit is turned on, and to notify you that a successful zero offset has been performed.
Cadences are measured from 30 - 170RPM and power outputs are read up to a huge 4,000 watts, so this power meter is suited to any type of rider looking to train more effectively.
Please note: Because 4iiii PRECISION 3 power meters 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. See 4iiii clearance guidelines below to check your frame
Check Bike Frame Compatibility for the 4iiii PRECISION Power Meter
Delivery & Returns
Reviews
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Q&A
Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".
Oh, dear. You tried too many passwords and now your account has been locked for the next 30 minutes.
Not sure of your password? Reset using the link below.
We've sent you an email to reset your password.
To create your new password, click the link in the email and enter a new one. Didn't receive the email? Check your junk email.
Please enter your registered email address below and we'll send you an email explaining the next step.
Select a store
Select the store you visit most frequently below and their stock information will show on product pages.
Important Update for Our US Customers
We regret to inform you that due to ongoing challenges related to current US tariffs, shopping on Sigma Sports is temporarily unavailable for customers based in the United States.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our US community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team