Features: Important: When installing these chain adjusters you must insert the rear axle from the LEFT (sprocket) side. See attached pics. Each kit includes: 2 chain adjusters (fully assembled), instructions, and all necessary fittings for instillation. Made In Italy Machined from high end 7075-T6 and 6082 billet Aluminum. Most non-name brands use ONLY 6082 or lower. Precise machining allows for accurate adjustments. Sleek race design. To adjust, simply turn the small adjuster. Detents click when turned, and a metric scale is stamped into the chain adjusters so you can line up the left and right side accurately. Don't forget the chain adjuster lifters ( Optional) which allow you to use spool-type rear stands. Just about everyone knows that a motorcycle chain that's too loose or too tight it can cause problems. What you may not know is that Lightech has a high end yet colorful solution. You're checking out the Lightech 2015 - 2020 Suzuki GSX-S1000 Tensioner Chain Adjusters. Fits: 2020 SUZUKI GSX-S 1000 1000 2019 SUZUKI GSX-S 1000 1000 2018 SUZUKI GSX-S 1000 1000 2017 SUZUKI GSX-S 1000 1000 2016 SUZUKI GSX-S 1000 1000 2015 SUZUKI GSX-S 1000 1000