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About PowerTap C1 53/39 Chainring Power Meter
The PowerTap C1 is the complete package. It checks the boxes of all of the important features of a power meter: Accuracy - The C1 has the same industry leading accuracy that every PowerTap product has and it taking measurement from both sides of the pedal stroke instead of just one. Compatibility- Because the mounting interface is at the spider the C1 has broader compatibility with a wide variety of cranks and any crank length you may use. Durability - With its smart design and minimal parts the C1 has the potential to last as long as the bike you've got it mounted to. And since chainrings wear over time we've made them replaceable so all you have to do is buy new ones and get them swapped out. Versatility - No longer are you tied to one crank or bottom bracket system with your crank based power meter. The C1 allows you to mount it to any compatible 5 bolt, 110 BCD crank giving you the versatility you need as your bikes change from year to year. Value - The C1 is priced like a single sided power meter with all the benefits of dual-sided measurement.
