Aerobar arm pads take constant abuse—body weight pressing down mile after mile, sweat soaking into the foam, UV degradation from outdoor training. After a season or two of heavy use, the padding compresses and loses its ability to cushion road vibration, which translates directly to shoulder and neck fatigue over long-course distances. The HBP-EX11-PADS are the factory replacement pads for Cervelo's EX11 Riser Post aerobar system, designed to restore the support and comfort that disappeared when your originals went flat.

These pads mount to the EX11 arm rest cups found on the P5 Disc, P3X, and PX-Series triathlon platforms. The attachment interface matches the original pad geometry, so your existing arm rest position and width settings remain unchanged after the swap. If you dialed in your aero position during a professional bike fit, fresh pads let you maintain that setup rather than compromising because worn foam no longer supports your forearms at the intended height and angle.

Replacement timing varies by training volume and conditions. Riders putting in serious Ironman prep—15+ hours per week with significant time in the aero position—will compress pads faster than someone doing occasional sprint-distance races. Visual inspection helps: if the foam shows permanent indentations where your arms rest, or if the surface fabric is cracking and peeling, the pads have given what they had to give. Swapping in fresh pads before a goal race ensures you're not dealing with pressure points or numbness during the run-off-the-bike transition when you need your shoulders and arms functioning properly.