Bluegrass Vanguard Core MIPS Helmet - Black Small Chainring BCD-Direct Mount SRAM 3-Bolt Color Black Number of Chainrings Unsurpassed reliability Flange Diameter ModelNumber=E3615 H921229-04-21 Length:45Mm

Bluegrass Vanguard Core MIPS Helmet Black Small Chainring BCD Direct Mount SRAM 3 Bolt Color Black Number of Chainrings Unsurpassed reliability Flange Diameter ModelNumber=E3615 H921229 04 21 Length:45Mm Color Black Number of Chainrings No Rings Included Crank Length (mm) 175 Crank Intended Use Mountain Weight 418 BB Included No Pedal Spindle 9 16" Spindle Interface Type RaceFace Easton CINCH Chainring BCD Direct Mount CINCH Chainline Hub Compatibility 135 142 MTB Hubs Chainline Hub Compatibility 141 148 Boost Hubs Chainline Hub Compatibility 150 157 DH Hubs Defined Color Black Measures from the center of the chain roller for an accurate output instead of the side of the chain