The mavic r sys slr 700c wheel the r sys slr 700c wheelset is the lightest clincher wheelset from mavic and now comes with an even wider deeper rim this wheel is superlight thanks to the ism weight reduction carbon spokes and superlight bearings and axles as well as being super light this wheel also has a high efficiency and energy transfer which is due to the taller rim profile and lateral stiffness produced by the spokes available in black with shimano or campagnolo compatible fr