Magene PES P515 Power Meter 172.5mm RGroup_762CA0DCF67CBD26175E1FD47801E7A4D4E1FC9C It has an 'internal block'

It has an 'internal block' built right into the frame

optimised for the shape of current shifters

The Novatec cassette hub supports an 8 to 11-speed drivetrain

Designed for 35mm handlebars and certified for use on all types of bikes including MTB and E-bike

Suitable for both beginners and experienced riders

Magene PES P515 Power Meter 172.5mm RGroup_762CA0DCF67CBD26175E1FD47801E7A4D4E1FC9C It has an 'internal block'The Magene PES P515 Power Meter 172. 5mm delivers pro grade power measurement using high precision strain gauges and accel sensors with intelligent temperature compensation for reliable 1% accuracy in all conditions. Its CNC molded triple hollow crank reduces weight while retaining strength, and broad compatibility (24mm spindle, 110BCD, multiple BB standards) plus wireless ANT+ Bluetooth and long battery life make it an easy, durable upgrade for