Profile Design 39a Aluminum Aerobar Extensions - Aluminum 400mm Black MFPN=RS-60-01 Silicone Gripper palm and fingers

Silicone Gripper palm and fingers provide a superior grip

Fits wheel dimensions 3-5ΓÇ¥ to enable transport of fatbikes

Color Black Flat Protection Tread and Sidewall TPI 60 Defined Color Black ISO Width (mm) 66 ISO Diameter 584 / 650b / 27

Zero Offset 2-bolt head

Comes with 1mm + 3mm spacers that match the outer diameter for a clean and tidy look regardless of current bottom bracket

Profile Design 39a Aluminum Aerobar Extensions - Aluminum 400mm Black MFPN=RS-60-01 Silicone Gripper palm and fingersProfile Design 39a Aluminum Aerobar Extensions Aluminum 400mm Black. 39a 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