Stages Cycling Shimano 105 5800 Power Meter Crank Left Arm (2nd Gen)

YOUR PRICE: £ 449.00
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UK Next Working Day delivery available if ordered before 3pm. Deliveries are made Monday to Friday, excludes Bank Holidays. Saturday delivery also available if ordered before 1pm Friday.

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Start to train and race smart with the Stages Cycling Shimano 105 5800 Power Meter Crank - Left Arm Only.

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No longer reserved for pricier crank models, the 105 version takes Stages Cycling's Accelerometer based cadence and power measurement to a whole new audience with ANT+ and Bluetooth Smart capability.

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Stages Cycling Shimano 105 5800 Power Meter Crank Left Only (2nd Gen)

No longer limited to the pricer cranksets, Stages Cycling's Shimano 105 Power Meter Crank Left Arm Only (2nd Gen) replaces your non-drive crank arm for power data collection and instantaneous readout. Riders looking to add power to their existing crank need only select length, as the Stages Power meter for 105 fits all styles of 105 crankset, including compact and standard.

Stages Cycling's power meters have been lighting up the pro and amateur pelotons for some time now and with this edition you have a Shimano 105 compatible option. Regardless of what piqued your interest in power measurement, you’ll find the Stages Power meter to be the lightest, smallest, most technologically advanced unit available today. The 20g unit houses an array of high technologies adapted from the rapid advancement of modern electronics.

The accelerometer based cadence measurement is possible due to the technology's development for use in smart phones. Especially exciting is the Stages Cycling Power meter’s bilingual communication between both ANT and Bluetooth Smart protocols; the latter gives Stage the ability to ‘future proof’ this power meter with the ability to update its firmware over the air using an iPhone or iPad device, while also keeping its housing impenetrably sealed to the elements.

Stages Power also broadcasts via Bluetooth Smart. Bluetooth 4.0 devices can communicate with Bluetooth Smart devices as well as legacy Bluetooth versions.

Is my bike compatible with Stages Power Meters?

To help find your current crank model, check the inside of the crank arm for the model and length.

The next step is to check the power meter's compatibility with your frame; if the space between your crank arm and seat stay fits a 10mm allen wrench between 5cm and 12cm from the centre of your bottom bracket, this should be compatible.

See guide below:


Still unsure? Contact us here for more information!

  • Bottom Bracket: Not included, compatible with Shimano Hollowtech II BB’s
  • Compatibility: Cranks compatible with all Shimano Hollowtech II road cranks. Device compatible with ANT+, Bluetooth Smart Ready
  • Extra Features: 200+ hours battery life, using CR2032 batteries
  • Weight:Only adds 20 grams to base crank arm
  • Available in a silver or black colour scheme
  • Tool free battery replacement
  • Active temperature compensation
  • Accelerometer based cadence measurement
  • Wireless firmware upgrades
  • Power range (Watts): 0 to 1999
  • Cadence range (rpm): 30-220
  • Frame compatibility: Most frames, contact us for details

Representative Example Of Finance For Stages Cycling Shimano 105 5800 Power Meter Crank Left Arm (2nd Gen)

Interest Rate (Fixed) 0%
Deposit 10%
Monthly Repayment £67.35
Final Installment £67.35
Cash Price £449.00
Deposit to Pay £44.90
Loan Amount £404.10
Cost of Loan £0.00
Total Amount Payable £449.00
Number of Repayments (Monthly) 6

How do I complete my order using finance?

Follow the four easy steps below to complete your order

  1. 1Add item to your basket
  2. 2Select V12 Retail Finance as your payment method
  3. 3Complete your online finance application
  4. 4Receive your instant decision

Read more about buying on finance Please note finance is only available to UK residents.

UK Delivery Options


Free Delivery on all orders over £30

Estimated delivery within 4 working days (a delivery charge of £1.99 for orders under £30.00 will apply)

CollectPlus Delivery

Have your order delivered to your local shop for just £1.99! For Highlands and Islands, please allow up to 5 working days. Orders can be shipped to UK CollectPlus locations specified on the website where they will be held awaiting collection for a period of 10 days.

Orders placed are normally dispatched within 2 working days.

Priority 1st Class Delivery - £2.99

Estimated delivery within 2 working days.

Next Working Day Delivery* - £4.99

A guaranteed tracked courier delivery, place your order before 3pm, deliveries are made Monday to Friday.

Saturday pre 12 Delivery - £4.99

Saturday delivery orders must be placed by 1pm Friday and is only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Saturday pre 12pm by courier. Package must be signed for upon delivery.

Sunday pre 12 Delivery - £4.99

Sunday delivery orders must be placed by 1pm Friday and is only available on items in stock in our warehouse. Orders are prioritised through our warehouse and are delivered on Sunday pre 12pm by courier. Package must be signed for upon delivery.

Reserve and Collect** - FREE

Reserve & Collect is available on all items marked 'Collection'. It is a FREE delivery option that allows you to collect your order from either our Sigma Sport Store Hampton Wick or our Reserve & Collect location in Esher. Just select the Reserve & Collect button in the basket.

** Reserve and Collect Collections - Clothing, parts and accessories: Next day. Orders placed on Friday, Saturday or Sunday will be available for collection after midday on the Monday (excluding Bank Holidays). Bikes: 4 days if in stock at store, collect in up to 7 days (sometimes quicker) if in stock at warehouse.

* Next Working Day delivery is only available on items in stock in our warehouse and excludes pre- order items. Next Day refers to the next working day, Bank Holidays will add an extra working day to the estimated delivery lead times. UK next day excludes Saturday deliveries. This service is not available to some remote postcode areas. Please contact us for help.

London Same Day (Order Before 1pm)


We offer a Same Day delivery service into London. The cost is £25.00 under 2Kg and £35 over 2Kg. Place your order before 1pm, deliveries are made Monday to Friday. Please note this option excludes bicycles.

More information on our Same Day delivery options.

Bike Deliveries


All our bikes are fully checked and tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for despatch. All you have to do is add the pedals, rotate and tighten the handlebars. Typically we can deliver your bike in 4 - 5 working days.

Deliveries are made Monday to Friday on a pre-12pm delivery. One of our customer service team will be in contact to arrange a convenient day for delivery.

More information on all our UK delivery options.

International Delivery


Sigma Sport delivers to over 100 countries. To see what delivery options are available for your destination, simply select your country on the checkout page. Goods are shipped from the UK. Does not include local taxes or import duties, if applicable.

More information on our International delivery options.

Free Returns


We offer a free returns service for our UK customers. Sigma Sport will happily refund or exchange any item purchased at Sigma Sport, excluding Sigma Sport gift vouchers and personalised products except when faulty.

More information on the Sigma Sport returns procedure.

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