For over 30 years, TM Designworks has been manufacturing innovative and unique products in the motorcycle industry. TMD has been recognized as the leader in chain slide-n-glide technology. With drive chain solutions for virtually all popular model bikes, TMD has been the preferred choice for weekend warriors, factory race teams and championship riders around the globe. Protection for your stock ATV or aftermarket swingarm. Impregnated with an exclusive oil additive to virtually eliminate friction and drag. Exclusive design improves hook-up, acceleration, and more consistent shock performance. Molded and machined with a race-tested new shape to reduce chain torque effect. Most models feature a one-year to lifetime free replacement warranty. Detailed Specifications: Two-year free replacement warranty. Fits stock and aftermarket 2" rectangle swingarms.