4iiii Pm Non-Drive Side Arm Precision, Gen3, Ultegra, R8000, Nds

Description

Features With up to 800 hours of battery life, you won’t have to worry about changing your battery for years to come. At only 9 grams the PRECISION 3+ Powermeter weighs about the same as a sip from your water bottle. Our goal is to help you get faster, not to slow you down. With an ultra low profile