4iiii - Dual Side Precision Pro Ultegra R8000 Power Meter Cross Country for the ultimate control

for the ultimate control

alpine lines to backyard trails

Can be used in addition to the 8-litre PRO Discover Handlebar Bag

It has a super-high boiling point to keep brakes sharp and fade-free and will perform well on the longest

IsoSpeed comfort technology helps soak up jarring road vibrations

4iiii - Dual Side Precision Pro Ultegra R8000 Power Meter Cross Country for the ultimate controlRidden 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)