|Stages power meter on the left crank.|
The Stages Power Meter is probably the most significant upgrade that I have made in years. While it is the most expensive single component on my bike at $650, it has more than made up that cost. It helps me manage a bike ride. I hesitated to buy a power meter for years, especially since they cost so much.
|Major Power Meters|
|SRM||$1,800 - $3,700|
|PowerTap||$2,000 - $3,600|
|Garmin Vector S||$899|
Before Stages was introduced two years ago, it seemed like only racers and triathletes had power meters. Now that reliable power meters have fallen below $1,000, I think that more people will buy them and ultimately prices will come down further. Power meters like the Polar’s CS600 with Power or the iBike Newton were below $1,000 but were not very accurate. The Polar CS600 measured chain tension and chain speed. The iBike Newton uses forward acceleration and the opposing air pressure and other factors to calculate power. The ones listed above use strain gauges measuring deflection to calculate power.