Heavy-Duty Swingarm / Jackshaft Bolt (10mm) Fits E-Ride S, 1.0, and 2.0 Models Upgrade your E-Ride drivetrain with a swingarm/jackshaft bolt engineered for real abuse. This bolt is CNC-machined from 12.9-grade alloy steel and cryo-treated to significantly increase tensile strength, fatigue resistance, and impact durability. The result is a fastener that is: 3-4x stronger than OEM hardwareApproximately 2x stronger than titaniumDesigned to handle aggressive riding, high torque loads, and harsh conditions without bending or failureBacked by a lifetime warranty against bending or breaking-because this is a part you should never have to replace again. What&';s Included 12.9-grade swingarm/jackshaft boltFuji locking nutHardened washerBlack oxide coating on bolt and nut for corrosion resistance. Important Fitment Note : E-Ride has used multiple swingarm bolt sizes BOTH 10MM & 12MM across different models and production runs, THIS IS FOR THE 10MM SIZE.Measure your OEM swingarm bolt before ordering to ensure proper fitment.