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-speed drivetrains
• Chainline spacers achieve non-Boost, Boost, or SuperBoost 52 - 55mm 
• Suits e*13 Direct Mount chainrings Helix R Direct Mount Chainring, Helix Plus Direct Mount Chainring, Helix Base Direct Mount Steel Chainring
• Color Black
• Compatibility All frames w/ 68/73mm threaded BB shell and 86.5-92mm PF shells
• Spindle on non-drive side for easy drivetrain maintenance
• Drive side 8mm self-extracting bolt
• Included: Crankset, lockring tool, lockring, pre-load adjuster, user manual, and sticker