Features:

• Accurately and quickly measures chain slack
• Two scales measure both chain slack and chain to swingarm clearance in millimeters
• Setting chain slack properly dramatically improves chain life
• Light weight compact design fits easily in your tool box or road kit
• Works on most street and dirt bike applications up to 75mm chain slack
• 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
• Does not work on motorcycles with Gullwing type swingarms
• Patented Design