Not all carbon wheelsets have to cost an arm and a leg using techniques learned while developing the control sl 29s weve been able to produce a lightweight set of 29 xc wheels at a more attainable price point the rims feature a zero bead hook design that allows for continuous fibre layup across the sidewall and rim bed resulting in stronger impact resistancegt rim type clincher tubeless ready zero bead hook designgt rim material carbongt rim width 27mm external 22mm internal