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compatible with Shimano-type 3x8/9sp drivetrains
5mm 3mm 4mm 5mm & 6mm hex
60mm Rise 0/6mm
Color Black Ring Position/Type Inner Tooth Count 22 Drivetrain Speeds 11 Chainring BCD 68 Material Aluminum Defined Color Black
A3 Helmet Halo Alpine Black MFPN=TKVABLU compatible with Shimano-type 3x8/9sp drivetrainsHead of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs athletes. Equipped with Mips protection, the co molded EPP EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head.
