E-Thirteen Helix Crank Arms - 170mm - 24mm - 68-73mm - E-Thirteen Direct Mount - No Spider - No Chainring - Black Images Uploaded - Ready for Review Mount style: This shifter is

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

What size bikes (wheelbase) can it carry: The max wheelbase size is 140cm so you should be safe to carry even the longest of 29ers (for now)

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

the plugger tools weigh only 35g combined

E-Thirteen Helix Crank Arms - 170mm - 24mm - 68-73mm - E-Thirteen Direct Mount - No Spider - No Chainring - Black Images Uploaded - Ready for Review Mount style: This shifter isThe 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