EVS R4 Race Collar - Black Stem Parts CRANK REQUIREMENT: Any crank with

CRANK REQUIREMENT: Any crank with 4-Bolt spider

With only two moving parts

and a rigid

creates the optimal interface between spoke and rim

Pants Size

EVS R4 Race Collar - Black Stem Parts CRANK REQUIREMENT: Any crank withThe EVS R4 is a lightweight, form fitting race collar offering protection against neck and collarbone injuries. The low profile design makes it a comfortable yet protective piece of gear you can wear on the track or on the trail. FEATURES Hard molded upper surface disperses energy to PU core Hi tensile closed cell PU core absorbs impact energy Bio foam liner provides extra impact absorption Rapid lock closure system for easy front entry Adjustable