Stages Cycling Power G3 105 R7000 Left Arm Only

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Product Description

The G3 Stages Power Meter L replaces the non-drive crank arm and is compatible with all Shimano Hollowtech II road drivetrains.

Key Features:

  • Handcrafted in Colorado, USA
  • ± 1.5 % accuracy in all conditions
  • Active temperature compensation firmware
  • Wirelessly upgradable firmware
  • Updated accelerometer and addition of gyroscope for improved cadence resolution
  • Upgraded BLE and ANT+ radios offer a 6X improvement of data transmission strength
  • Battery Life: 200+ hours (coin cell: CR2032)
  • Power range (Watts): 0 to 2500
  • Cadence range (rpm): 20-220
  • Water resistance rating: IPX7

Occasionally, without notice, manufacturers change product design and/or specifications.

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Power Meter Guide


Power Meter Guide

Power meters are the best way to measure your performance on the bike as they take out variable like wind and surface conditions that can affect your ride times. There are many different types of power meter available, but they will be one of three main types.

Note: Power meters need cycling computers in order to record information. They are normally bought separately and work in conjunction to record and translate your data, using either Bluetooth or ANT+ to connect wirelessly. Most computers and power meters will use one or the other, with a few being compatible with both ANT+ and Bluetooth, so it’s worth making sure your computer matches up with your power meter.

Chainset Power Meters

Chainset power meters are perhaps the most accurate type available and are designed as a part of the crank arm or chainring.

Relatively easy to use, crank arm power meters have a sensor that is incorporated into the crank arm, making them fairly hidden and stealthy. Chainring meters have the sensor attached to the crank spider that holds the chain rings.

Both single sided crank arm and chainring power meters measure power from one side, this means that they don’t pick up on any differences between your legs. Double sided crank arm meters offer the most accurate readings. Chainring based power meters are not so easy to change between bikes, but crank arm power meters can easily be swapped between bikes, as long as the chainset is the same.

crank arm power meter

Pedal Power Meters

Pedal power meters make up part of the pedals so they can easily swapped between bikes. This means you can get accurate power readings whichever bike you choose to train on. This gives you a single solution to measuring your output on multiple bikes.

Pedal power meters show the smoothness of your pedalling as well as the accuracy of your pedalling position, as they are found on both pedals. Compared to other types they can be a bit more susceptible to knocks as they extend further outwards compared to other meters.

pedal power meter

Wheel Hub Power Meters

Hub power meters provide a stealthy way to measure your power output and are easy enough to swap between bikes should both bikes be compatible between wheels. They can be a bit heavier than other power meters, but they are accurate and reliable, and don’t add any extra pieces to your bike.

wheel hub power meter


How do I apply for finance?

Spend £99 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

2During checkout, select the finance option you want as your method of payment.

3You will be sent to our finance provider's secure server to complete your application.

4Finance providers PayPal & V12 will use the information provided to make a decision and complete checkout if you are approved.

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V12 Representative Example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit 15.9% APR Representative (interest rate 8.17% fixed), you would pay £43.55 per month. Total amount of credit will be £1259.10 with a cost of credit of £308.70 after a deposit of £139.90. Total amount payable is £1707.70, subject to terms and status.
PayPal Credit Representative Example: Representative 21.9% APR (variable), Purchase interest rate 21.9% p.a. (variable), Assumed credit limit £1,200.00.

Delivery & Guarantee

UK Delivery Information

International Deliveries – Temporarily Suspended 11/11/20

Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey. 

Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.

Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.

Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.

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Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause. 

We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.

Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.

Please note that Pre-Order dates can sometimes change due to updated stock information.

Click here for more UK and international delivery information.

Returns & Warranty

It's easy to return a product with our 365 day, hassle free returns. 

We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).

Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.

If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.

For more information please visit our Returns & Warranty page.

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