Park Tool CT-5 Portable chain Tool

Features:

• The fine thread, special V-shaped handle, and strong replaceable pin make chain removal and installation a breeze
• Compatible with 1/8” single-speed and 5 to 12-speed derailleur chains.
• Not for use on BMX heavy duty or half link chains
• Perfect take-along chain tool at only 77 grams
• Handy "loosening shelf" to remedy stiff links after reassembly
• Nominal Dimensions: 60 mm long, 55 mm wide, 15 mm thick