Accurately and quickly measures chain slack.

Features:

• Two scales measure both chain slack and chain to swingarm clearance
• Setting chain slack properly dramatically improves chain life
• Lightweight 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 aluminium measuring scale
• Anodized laser-etched precision measuring scale
• Refer to your owners manual for proper chain slack and procedure
• Patent pending