eeWings Mountain cranks are virtually indestructible and stunning on nearly any type of bike - from gravel race machine to heavy-hitting bike park rig to the undetermined bike you&&';;ll build 10 years from now. They&&';;re as light as carbon cranks but offer significantly more durability and impact resistance - not to mention industry-leading power transfer. Now with 8-bolt chainring and power meter compatibility an ultra-friendly 8mm fixing bolt and more ground clearance.At approximately 398g eeWings are lighter than most carbon fiber cranks but offer the strength and reliability that none of them can offerButted 3/2.5 tubular titanium arms with machined 6/4 titanium spindle and Hirth jointTimeless looks and perpetual style - eeWings look good with everythingeeWings fit nearly every bike frame and are compatible with the latest popular drivetrains and power metersCompact and lightweight hirth joint minimizes overlapping and redundant material yet maintains incredible torsional rigidity to result in the most direct power transfer possibleIncludes a fully machined 7000 series aluminum preloader with titanium pinch bolt for precisely setting the preload on your bottom bracket bearings and ensuring a perfect fit with your frame (bottom bracket sold separately)176mm Q-FactorCane Creek backs these eeWings cranks with a limited lifetime warranty TECH SPECS table{border-collapse:collapse;width:100%;} td{text-align:left;padding:8px;font-weight:350;} tr:nth-child(even){background-color:#f2f2f2} th{background-color:#eb212e;color:white;text-align:left;padding:8px;} .desc .specs-heading{font-size:24px;font-weight:600;padding-top:35px;border-top:3px solid #f0f0f0;display:inline-block;border-bottom:4px solid #eb212e;width:142px;margin:0;} Number of Chainrings No Rings, No Spider Included Chainring BCD Direct Mount SRAM 8-Bolt Chainline/Hub Compatibility 141/148 Boost Hubs Color Titanium Crank Length (mm) 160 BB Included No Pedal Spindle 9/16" Defined Color Gray Length 160Mm