• Designed to measure and straighten misaligned derailleur hangers.
• Simple and accurate to check the alignment of rear derailleur hanger and solve most derailleur shifting problems, especially those with index shifting systems.
• Fits to most wheels, 20~29".
• Simple and accurate to check the alignment of rear derailleur hanger and solve most derailleur shifting problems, especially those with index shifting systems.
• Fits to most wheels, 20~29".
WILT U