Bike Derailleur Hanger Alignment Gauge Tool Rear Derailleur Correction Wrench for Repair Black

Feature: 1. Alignment Tool: A correction tool used for the alignment of bike rear derailleur, which ensures higher cycling safety and stability. 2. Using Tips: Directly screw the tool into chain lifter hanger. There is a gauge on the rod to measure the distance to the wheel. Then, as the wheel rotates the gauge to 90 degrees , 180 degrees , 270 degrees and 360 degrees , note any differences in the measured values. Align the derailleur hanger by applying pressure to the tool arm. The results can be checked immediately. 3. Good in Design: Comes with 400mm length, the tool enables simple operation, largely simplifying your working and improving efficiency. 4. Great Material: Adopting premium aluminium alloy material with a sturdy structure, not easy to deform and very durable for long using. 5. Easy Carrying: Light in weight and compact in size as well, the tool can be conveniently carried for both indoor and outdoor work. Specification: Item Type: Derailleur Hanger Alignment Gauge Material: Aluminium Alloy Length: Approx. 400mm 15.75in. Package List: 1 x Derailleur Hanger Alignment Gauge3 x Accessory