Training wheelsets are not hard to come by, however high quality training wheelsets are few and far between. Many companies can pack a lot of specs and figures into their wheelsets, but few can touch Shimano's proven quality and reliability. The Shimano R501-A Wheelset uses a low spoke count, aero-rim profile, and easy to maintain cup and cone bearings. The rims are double wall, and the spokes are stainless steel and bladed. The rear wheel uses a 2x spoke pattern on both sides for optimum power transfer. When you need a wheelset to train on, that you can ride rain or shine without ever worrying about it's durability. Furthermore the wheels are featured with a rim wear indicator. The asymmetric rim and the high quality angular bearings increase stiffness and provide a long durability. For Shimano 8/9/10-speed.Features Weight: 1912g (824 F, 1088 R) Aluminum rim extrusion with aero-profile 20/24 spoke count Stainless, bladed spokes Easily serviceable cup & cone bearings Machined brake surface Rim Height: 24mm About ShimanoEstablished in Japan in 1921, Shimano is the worlds largest bicycle component manufacturer. Whether it be drive systems, brakes, pedals or shoes, Shimano stands for reliable quality and performance. From Road & Gravel to Mountain, Touring & Urban use, Mechanical or Electric.