Your crankset might just be one part of the ensemble of componentsthat makes up the chorus of your bike's group, however, it's a very importantvoice and removing it and simply replacing it with another just wouldn't soundquite the same. Here in the office, we're pretty big advocates of keeping thecrank the same as the group, from an aesthetics and performance standpoint, andwe also understand your desire in wanting to train with power. Well now you cankeep the perfectly good drive-side version of your Campagnolo Chorus cranksetand, thanks to the wizards at Stages Cycling, add the Campagnolo Chorus L Gen 3Power Meter Crank Arm so you can accurately measure power without it soundinglike a baritone's in the soprano section. This crank arm is a genuine Campagnolo Chorus offering withits foam core carbon arms and smooth spinning Italian bearings that don't giveup much to the firm's Record and Super Record offerings. These cranks meldseamlessly with the rest of your group with nothing to distract from yourbike's clean lines and the real star of the show is the little pod bonded tothe inside of the crank arm. Tucked inside that little pod are strain gauges and anupdated Gen 3 accelerometer that measure force and rotation to deliver powerdata, via stronger Bluetooth LE and ANT+ radios, to your head unit with aclaimed accuracy of +/-1. 5%, which is well in-line with other quality powermeters on the market. It also incorporates Stage's Active TemperatureCompensation (ATC), which compensates for the natural expansion and contractionof the strain gauges by adjusting the readings depending on the fluctuatingexternal temperatures. ATC accounts for those temperature changes automaticallywithout requiring you to stop and zero the system. Overall, the power meteradds around 15 grams to the crank, which is a tiny tradeoff for the ability totrain smarter and get faster.