The Hed Belgium C2 tubular rim is one of the new generation of rims with a slightly wider 23mm width that delivers plenty of strength, aerodynamics and solid handling. Hed's research shows the C2 rim with its 24mm profile and 23mm width saves about 40 seconds over a standard clincher rim in a 40k time trial due mainly to a smoother transition from tire to rim creating improved laminar airflow.
The shape of C2 give it a couple more big benefits in addition to being aerodynamic. The wider profile makes the C2 a very strong rim so if you usually use a 32-hole, you can probably get away with a 28 with the C2. High rim strength means less truing and less worry if you happen to ride the occasional unpaved road.
Perhaps the most talked about benefit of the C2 is how it contributes to both better ride quality and more solid handling. It does this by better supporting the tire with reduced tire deflection in corners. So say goodbye to squishy, squirrelly cornering and rail descents with confidence. Improved tire alignment over the rim allow lower tire pressure and better tire to road contact. All the benefits of the C2 make it a rim worthy of consideration for both road and cyclo-cross use.
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