Setting chain slack properly dramatically improves chain life. Accurately and quickly measure chain slack (not used to measure chain to swingarm clearance specification). Works on most street and dirt bike applications, up to 52mm (2") chain slack. Lightweight compact design fits easily in your tool box or road kit.
- Made from engineered nylon with aluminum measuring scale
- Anodized, laser-etched, precision measuring scale
- Refer to your owner's manual for proper chain slack and procedure