Road Bike Shifter Angle Measure Tool Adapter For Precise Derailleur Alignment Gauge Nut And Adjustable Brake Lever Height Gearhead Friendly Universal Fit For 20 Inch To 29 Plus Wheels Handy Home Mechanic And Pro Shop Accessory
57g aluminum alloy, reinforced inner shaft, and thru-axle friendly
Designed for 20" to 29"+ wheel range, this derailleur alignment gauge is used by home mechanics and pro shops to ensure precise hanger alignment on road, mountain, and gravel bikes.
✅ Wheel size range 20" to 29"+ (508-737 mm) compatible with road, MTB, and gravel frames
✅ Reinforced inner shaft for extra strength and stable adjustments
✅ Lightweight 57g aluminum alloy body with chrome-plated steel gauge bar
✅ Accurate derailleur hanger alignment using rotating gauge at 3, 6, 9, and 12 o'clock positions; compatible with threaded and thru-axle hangers
✅ Includes replaceable threaded tip and optional adapter nut for broad brand compatibility
💡 What is a derailleur hanger alignment tool used for in setup and maintenance?
This handy tool helps diagnose and correct hanger misalignment to improve shifting performance.
- Useful for fine-tuning derailleur alignment on road, mountain, and gravel bikes - Works with 20" to 29"+ wheels and both threaded and thru-axle hangers - Lightweight, durable design with replaceable tips and adapter nut - Helps technicians diagnose and fix shifting issues quickly in home shops or pro shops