40mm: 136g

The GR-501's rate a 2 out of 11 of Shimano's stiffness chart so they are very much at the comfort end of the spectrum

Very resistant to heavy loads

gravel grinder or cyclocross rig

1 pair titanium spindles + refresh kit: enduro cartridge bearings

Oakley STREET1 Helmet - L - Matte Black PDP|PLP|Brake Rotor Type 40mm: 136gProduct Overview STREET1 is for the next generation of skaters and BMX riders looking for a helmet they can wear when pushing their limits on pavement. The low profile shape and clean design highlight the importance of style while still ensuring comfort and safety. Product Description Fit The Oakley designed, 360 fit system incorporates a height adjustable yoke for a comfortable, customized fit. A rubberized micro adjustment dial secures the fit and