Giant Power Pro Ultegra R8000 Power Meter

If you want to put a dual-sided power meter on your bike then this is an excellent option.

We found the power numbers to be repeatable and believable, and Ultegra cranks are hard to fault in operation. As a system, it's a good value option for dual-sided power.

Essentially, what you're getting is the same thing as what you'd get from the likes of Stages and 4iiii. The main difference is that the Giant system uses a rechargeable battery, whereas both the competitor systems use a simple 2032 coin cell on either side.

The cranks are dual Bluetooth/ANT+ compatible so they should work with pretty much any GPS head unit or indoor training system you could care to mention.

The numbers from the Power Pro appear to be repeatable, and accurate. Which is nice.You can't ask for much more than that.