Super B 2-in-1 Chain Checker & Hook Tool

• Quickly and accurately indicates chain wear for timely replacement.
  
• Fits 5 to 13-speed chains, including SRAM T-Type, SRAM Flattop, and Shimano XTR 12-speed chains.
  
• For single speed chains: replace at or just before 1% wear.
  
• For 5-to-10-speed chains: replace at or just before 0.75% wear.
  
• For 11-to-13-speed chains: replace at or just before 0.5% wear.
• Built-in chain hook holds the chain in place for easy installation or removal.

Note: The indicated chain speed specification is for reference only. Please follow the chain manufacturer’s manual for precise replacement criteria.