Momsen Jsl40/60 My21 Derailleur Hanger

Replacement quality Aluminium Derailleur Hanger for Momsen the JSL40 and JSL60 models from Model Year 2021Onwards. Keep your kid's bike riding and the gears perfectly always aligned. Designed as a failure point to protect the derailleur and the frame from damage in the event of an accident.

What's in the box
1 x Derailleur Hanger