4iiii Precision Power Meter - Shimano 105 5800
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includes Accessories + Fitting
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4iiii Precision Power Meter - Shimano 105 5800The 4iiii Precision Power Meter - Shimano 105 5800 delivers industry-leading accuracy, with highly dependable cadence data, the 3D powermeter technology is capable of measuring tri-axial strain on your crank arm. It's designed to be durable and lightweight and is compatible with ANT+ and Bluetooth head units. These power meters help you to train harder and smarter.
4iiii Precision Power Meter - Shimano 105 5800 Extra Info
- 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
- Weight: 9 grams
- Data accuracy: +/- 1% error margin
- Battery life: 100+ riding hours on 2032 coin cell battery
- 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.
£3.99 Standard Delivery available on orders under £40 placed by 3pm*
Your delivery date will be communicated at checkout. Delivery times are Monday to Saturday.
FREE Click & Collect - you can reserve an item online and pick it up from a store of your choice
Simply enter your Postcode on the product page to check availability, and select Click & Collect at checkout. What's more, you pay for your items on collection. Click here to learn more.
Items in stock - collect from 1 hour
If your item is in stock at your chosen store, you can collect it from one hour after ordering online. We'll hold your item in-store for seven days.
Items not in stock - collect next day*
If your item isn't in stock, we can order it to your chosen store for collection.
*If you place your order before 8pm you can collect it from 4pm the following day (except Sundays), and we'll hold your item in-store for seven days.
Collection time will increase by 24 hours if you'd like us to build your bike for you.
Please note that items sent directly from the supplier need to be ordered by 3pm for collection two days later. All delivery times will be shown during checkout.
Halfords - Our Price Match Promise
At Halfords we strive to offer our customers first class service and products at competitive prices.
In order to uphold our Price Promise to not be beaten on price, we actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.
If you find a cheaper price we'll match it, and if you find it after you've purchased from us we'll refund the difference within 7 days of receipt of your goods.
Simply take a print out of the competitor's online price into any Halfords store, ensuring, date and price are shown and we will match the competitor price if within policy.
Terms & Conditions
- The competitor's item must be identical (colour, size etc)
- The competitor's item must be in stock at the time of match
- The competitor's price must include delivery
- The competitors price must be publically advertised online and cannot include any membership/personal discounts
- We cannot match bulk promotional offers such as buy one get one free
- The competitor must be based in the UK and sell direct to customers (no auction or marketplace retailers)
- No other promotional offers or vouchers can be used on top of a price match
- We will match within 7 days of receipt of purchase
- We will match in store if our online price is lower than our store price
- We will not match against clearance, closing down sales or specialist retailers such as market stalls.
- In order to change the price of items bought on finance, the original agreement must be cancelled and a new one created at the lower price. The new agreement must still meet the minimum value and item requirements for finance.
- Items sold by Halfords Approved Partners are not subject to our price match policy.
You can buy this product from one of our carefully selected Approved Partners. The full list of options available are below. Simply add your chosen option to your basket and proceed to checkout when you're ready.
You can purchase products supplied by Halfords and selected other suppliers on halfords.com.
Checkout is always via halfords.com and all payment will be taken via halfords.com. In checkout the products will be split into separate deliveries for each supplier.Showing 1 - X of our buying options
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