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Durable, lightweight and incredibly precise, the 4iiii Ultegra R8000 Crank Arm w/PRECISION Power Meter Black Left Sided measures tri-axial strain to get a 3D view of where the power is going

Durable, lightweight and incredibly precise, the 4iiii Ultegra R8000 Crank Arm w/PRECISION Power Meter Black Left Sided measures tri-axial strain to get a 3D view of where the power is going

4iiii

4iiii Ultegra R8000 Crank Arm w/PRECISION Power Meter Black Left Sided

£279.20  £419.00  33% off
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on the Undetermined
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90-DAY RETURNS*

Please read and fully understand this policy before returning goods to us.

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel.

If you wish to exchange an item for any reason the quickest and simplest way to do this is to place a new order for the item you want and return the other item for a refund.

4iiii Ultegra R8000 Crank Arm w/PRECISION Power Meter Black Left Sided Information

Season : A

Brand : 4iiii

Code : PML100-S10

Durable, lightweight and incredibly precise, the 4iiii Ultegra R8000 Crank Arm w/PRECISION Power Meter Black Left Sided measures tri-axial strain to get a 3D view of where the power is going

Whether you’re a pro or simply training hard, PRECISION powermeters deliver industry-leading accuracy, highly dependable cadence data, 3D powermeter technology capable of measuring tri-axial strain on your crank arm. Designed to be durable and lightweight, compatible with ANT+ and Bluetooth head units, PRECISION helps you train harder and smarter.

PRECISION Ride Ready comes installed on a new Shimano left crank arm (105, Ultegra, or Dura-Ace). These crank arms will fit bottom brackets using the Hollowtech ii interface.

NOTE: check your frame clearance before ordering by downloading and printing the compatibility guide:https://4iiii.com/wp-content/uploads/2017/02/Ride-Ready-Clearance-Check-Letter-20170215.pdf

Features

  • 3D powermeter technology (patent pending) measures tri-axial strain on your crank arm

  • Accurate, consistent data

  • Lightweight, compact design

  • Battery status indicator via 4iiii app

  • Compatible with ANT+, Bluetooth Smart head units, smartphones, and other 4iiii products

  • User-friendly app and configurable rider compensation scale factor

  • Easy setup and maintenance

  • Specifications

  • Weight: 9 grams

  • Data accuracy: +/- 1% error margin

  • Battery life: 100+ riding hours on 2032 coin cell battery

Display Compatibility:

4iiii PRECISION 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.Stealth 50

Technical Information
  • Module Weight: 9g (0.3oz)
  • Power Range: 0-4000W
  • Cadence Range: 30-150RPM
  • Communication Protocols: ANT+, Bluetooth
  • Operating Temperature: 0 to 50°C (32-122°F)
  • Storage Temperature: -20 to 50°C (4-122°F)
  • Battery Type: CR2032 lithium ion coin cell
  • Battery Life: 100+ hours
  • Waterproof Rating: IPX7, IPX5
  • Length: 37.7mm (1.5in)
  • Width: 27.6mm (1.1in)
  • Depth: 7.5mm (0.3in)
Sizing Information
Professional Opinion
 
At just 9g the 4iiii Precision power meter is the lightest on the market
 
Solid power meter that delivers highly usable data,
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