4iiii - Dual Side Precision Pro Ultegra R8000 Power Meter Size:175mm Featuring Cateye's largest display

Featuring Cateye's largest display

enhancing neck protection

Eye garage to keep your sunglasses securely in position when placed on the helmet

0 features a Li2 BOA® Dial for adjustability on the fly

4iiii - Dual Side Precision Pro Ultegra R8000 Power Meter Size:175mm Featuring Cateye's largest displayRidden by the pros, the PRECISION PRO dual side power meters deliver all the benefits of 4iiii's left side model (exceptional accuracy, lightweight design, ANT+ and Bluetooth compatibility, 3D power meter technology), plus a specific breakdown of left and right wattage. Perfect for those who need specific power output from each crank side, or anyone who simply wants the best power meter on the market. 3D power meter technology (patent pending)