If you want to make the challenge of a long, extended ride more accessible, upgrade your bike with the aero-optimized E 550 rim. This ultimate long distance rim gives you the stability and comfort to ride further with confidence. The 22 mm inner rim is optimized for 28 mm wide tires, giving you comfort and lower rolling resistance when inflated at lower pressures. With the E 550, you have no excuses not to extend your ride.