Profile Design 39a Aluminum Aerobar Extensions - Aluminum, 400mm, Black Road & Track Chainrings plus diamond surface for additional

plus diamond surface for additional support

PK4090 TL8809 570067 901188-01

UPC: 770075844594

stiffer black arch spring

GL3881 231237

Profile Design 39a Aluminum Aerobar Extensions - Aluminum, 400mm, Black Road & Track Chainrings plus diamond surface for additional39a Aluminum Aerobar extensions provide a comfortable position for the riders hands relative to the armrests. They enhance performance by allowing the rider to relax into their optimal position, so each rider can chase their best performance. 39a extensions have a 39 degree angle for the grip. The rider can choose whether to hold high for the shrugged position or low for a more open, head up position 7. 5mm lateral shift per side, allowing the rider