Topyk Chainring Nut Wrench key

Timing steel tool that keeps the grooved hires of the chain to avoid rotations during L'installation or removal of crown bolts. It adapts to most grooves for grooved chains.

Characteristics:

• Tool material: reinforced steel
  
• Body: rubber
  
• Measurements: 9 x 2.4 x 1.8 cm / 3.5 "x 0.9" x 0.7 "
  
• Weight: 19 g / 0.67 Once
  
• Box keys: 8/10 mm