• Rear Derailleur Lug Correction Tool: Used to correct rear derailleur lugs, solving various transmission shifting problems, especially with rear derailleur positioning systems
• Durable Construction: Crafted from stainless steel with electroplating heat treatment for high hardness and excellent corrosion resistance
• Precision Thread and Sealing: Features precision threading and strong sealing. The bolt is locked into place by rotating the positioning knob clockwise
• Adjustable Sliding Bracket: Lock and press the sliding bracket button to adjust the measuring rod’s distance from the hub, assessing the deviation between the tail hook and the wheel rim
• 360° Swivel Rod Rotation: Rotate the swivel rod 360° to measure and correct the alignment between the wheel rim and tail hook
• O-Ring Positioning: Touch the measuring rod to the wheel rim and position the O-ring by pressing the sliding bracket flush, adjusting as necessary

Specifications:

• Model: RR9217SR
• Material: Stainless steel
• Weight: About 720g