E-Thirteen Helix Crank Arms - 170mm - 24mm - 68-73mm - E-Thirteen Direct Mount - No Spider - No Chainring - Black Images Uploaded - Ready for Review Blast - 25 lumens -

Blast - 25 lumens - 4:30hrs

Mount style: This shifter is only available with a bar clamp

11-40T: 11-13-15-18-21-24-28-32-36-40

Featuring moisture-wicking polypropylene construction paired with zonal mesh ventilation to keep your feet dry and cool

Features: Single clamp lock-on with forward-facing bolts for easy access

E-Thirteen Helix Crank Arms - 170mm - 24mm - 68-73mm - E-Thirteen Direct Mount - No Spider - No Chainring - Black Images Uploaded - Ready for Review Blast - 25 lumens -The Helix crank arms from E*Thirteen combine forged AL 6066 T6 aluminium alloy arms with a heat treated 24mm Cro Mo spindle to deliver a super cost effective, performance crank that is light and strong and suitable for most MTB pursuits. Features: Lighter weight for improved acceleration and climbing Strong enough to shuttle run bike parks Durable aluminium alloys for years of trust and confidence Can be combined with either Shimano or SRAM 11 and 12