e*thirteen Helix R e*thirteen Direct Mount Guidering
$72,95
e*thirteen
Helix R Direct Mount rings are designed to function equally well with all 11 and 12-speed SRAM™ and Shimano™ drivetrain systems on e*thirteen Helix or legacy TRS/LG1/XCX cranks. e*thirteen's Gen 4 narrow-wide tooth profile delivers upgraded chain retentio