Zipp comes out with “the world’s most aerodynamically advanced aluminum wheelset” called the 101. It features a toroidal rim (curved surfaces), high quality steel bearings and boasts of a 42 second advantage over 40km against V-shaped rims that are deeper than the 101 which has 30mm deep rims.
The Zipp 101 has a maximum width of 24.5mm which allows you to use 21mm-35mm tire width. Due to the 101’s width, flats are less likely to occur and lateral stiffness is improved.
The advanced 101 makes use of Zipp’s 88/188 hubs made from Z310.0 alloy which also allows bearing adjustment. Spokes are Sapim CX-Rays, 18 front and 20 rear with oversized 17mm axles. The 101 weighs 1523g per wheelset and is available in 700c clincher only. Retail price is £1,100 per pair.