4iiii Pm Precision, Pro-Shimano 105 R7000-Dual 53-39T tire lever ZERO LOSS™ technology delivers immediate

ZERO LOSS™ technology delivers immediate derailleur engagement for instant shifting

Fit Adjustment: Bungee Cord System Capacity: 5L

Application (TL): Chain

They’re ultralight

4iiii Pm Precision, Pro-Shimano 105 R7000-Dual 53-39T tire lever ZERO LOSS™ technology delivers immediateFeatures 4iiii makes the lightest power meter on the market. Were committed to helping you get faster, one gram at a time. A dual power meter measures the power from each individual leg to calculate your total power output. Not everyone has the perfect pedal stroke. With + 1% accuracy, 4iiii is the only crank based power meter to use 3 strain gauges to measure all forces in your pedal stroke. Get more data like pedal smoothness and torque