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4Iii

4iiii Precision 3+ 105 R7000 Left Hand Power Meter Crank

£299.99 £345.00 13% off
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Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

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 Undetermined
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When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

If you are not completely satisfied with your purchase, simply return the item or items to us in their original condition* within 30 days of receipt. You must notify us in writing within 14 working days, by post or email of your intention to do this.

We will issue a refund or exchange the item for a different size / colour if preferred. Delivery charges are only refundable if you have canceled your entire order within the 7 day Cooling-Off Period or where the goods are faulty and a refund is made.

Where you require an exchange, for example, because a size has been incorrectly ordered, we will make a £3.95 charge to cover re-delivery costs.(Note: For larger items such as wheels, this charge may vary and you will be informed of the price before the item is sent).

Payment for this must be provided before we will send out the replacement item.

For European and International orders the charge will vary depending on the current cost of delivery to that country. For an accurate price, please contact us before returning your item.

Please note :

-The item is your responsibility until it reaches us. For your own protection, we recommend that you send the parcel using a delivery service that insures you for the value of the goods.

-The cost of returning the item to us is your responsibility.

-The parcel can take up to 7 working days to be processed once received.

* Note: when trying on items of clothing, please ensure that you are not wearing perfume / aftershave or a deodorant which may leave a scent or marks on the item. In the case of cycling shorts please ensure that underwear is worn when first trying them on. The item(s) must be returned in its original packaging with all labels and tags and with all enclosed documentation.

We will be unable to accept the return of any item where there is evidence that these instructions have not been followed.

For large items such as bikes and wheels we reserve the right to charge a re-stocking fee of 5% to cover our administration costs.

Important Return Policy Information:

Kindly be aware that special order items become non-refundable once they have been shipped. This category includes, but is not restricted to:

- Electric bicycle batteries
- Custom-built bikes
- Frames specifically ordered for you
- Worn clothing

In the event that you cancel any special order items after we have initiated the ordering process but before shipment, please be advised that a warehouse re-stocking fee and return postage may apply.

Re-posting of Items (In the event of refused/undelivered parcels):
If the customer wishes to have the refused parcel re-posted, they are required to bear the cost of the re-delivery. The delivery fee for re-sending the item will be communicated to the customer, and upon their agreement, the re-posting process will be initiated.

Should the customer choose not to proceed with the re-delivery, they have the option to request a refund for their order. A 20% service fee will be deducted from the total order amount to cover administrative and handling costs.

Faulty Item

If the item you received is faulty, please contact us quoting your order number, your name and address, details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return. You have 30 days from receipt of the faulty item to notify us of your intent to return it and a further 30 days in which to do so.

Incorrect Item

If the item you received is not what you originally ordered, please contact us in writing within 14 working days, by post or email, quoting your order number, your name and address, details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return.

All refunds will be given as soon as possible, and usually take the form of a refund transaction onto the card used for the original purchase. At the very latest we will refund your money within 28 days from the day we receive your returned item. In the case of incorrect ordering and undisclosed reasons for return, a credit or exchange may be issued and the customer will be expected to pay the return postage costs.

All returns must be accompanied by a completed returns form and a copy of the original invoice

4iiii Precision 3+ 105 R7000 Left Hand Power Meter Crank

Season:2025

Brand:4Iii

Code:PML300R7100165mm

Our most powerful unit to date, compressed into a smaller, lighter package and featuring support for Apple Find My, the Precision 3+ Powermeter is a proven choice of pros and weekend warriors alike. Whether you’re fighting for a Kona qualification spot, logging countless hours on virtual riding platforms or looking to better your time up the local KOM segment, you want accurate and reliable tools to unlock your potential. With up to 800 hours of battery life, an automatic terrain selector, +/-1% accuracy and backed by our industry-leading 3-year warranty, the Precision 3+ Powermeter will be your trusted tool for years to come.

How Does It Work?

The Precision 3+ Powermeter is so much more than a power meter. It’s your training partner that offers peace of mind. While you are riding, your Precision 3+ Powermeter will transmit Watts, cadence, and calories to your head unit of choice. While the power meter is not in use, Find My is enabled and allows you to see its location on a map. You can add your power meter to the Find My app and locate it on an iPhone, iPad, Mac or using the Find Items app on an Apple Watch.

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 head unit or computer, and you can start riding with power. Connect to the Find My app with your iPhone or iPad to start tracking your power meter.

Features

  • Apple Find My: Offering the peace of mind in knowing where your power meter is.
  • Battery Life: With up to 800 hours of battery life, you won’t have to worry about changing your battery for years to come.
  • 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.
  • Automatic Terrain Selector: Detects the terrain you’re riding on for more responsive cadence and power feedback/data. Ride the roads less traveled with confidence.
  • Ultra Low Profile: With an ultra low profile design, the Precision 3 is compatible with more bike frames than ever before.
  • Light Weight: At only 9g the Precision 3 Powermeter weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not to slow you down.
  • Waterproof: 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.
  • 3 Years Warranty: A lot can happen in 3 years. You probably won’t need to use it, but it’s reassuring to know that all 4iiii power meters are backed by an industry leading 3-year warranty.

Compatibility

A 4iiii Precision 3+ power meter 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.

  • Shimano 105 FC-R7000
  • Shimano Ultegra FC-R8000
  • Shimano Ultegra FC-R8100
  • Shimano Dura-Ace FC-R9100
  • Shimano Dura-Ace FC-R9200
  • Shimano GRX FC-RX810
  • Shimano XT FC-M8100
  • Shimano XTR FC-M9100

Specifications

  • Accuracy: +/- 1%
  • Battery Type: CR2032 Coin Cell
  • Battery Life: Up to 800 hours
  • Waterproof Rating: IPx7
  • Cadence Range: 30 - 170RPM
  • Power Range: 0 - 4,000W
  • Height: 5.5mm
  • Weight: 9g
  • Operating Temperature: 0 - 50°C
  • Communication Protocols: ANT+, Bluetooth
Sizing Information
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