Analyze the power curve of your kilo, get the most out of your standing start, and see where you can conserve in the points race. The 331-gram PowerTap G3 Track Hub makes you faster with smarter training and racing. You can also track your Training Stress Score (TSS) and Chronic Training Load (CTL) for long-term gains and staying within your personal physical limitations to avoid over-training. The low-profile G3 hub is made of light, durable aluminum with wide flange spacing for increased stiffness. It's accurate to within +/-1.5% and is ANT+ capable for use with your favorite compatible cycling computer (sold separately). Plus, all the electronics are held within a small, easily removed outer cap.
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