Features:
Single speed of Birdy can shift gear, it’s applicable to various front derailleur, and it can use on 56/42T or 53/39T chainrings directly.
Color: Black, Red, Titanium, Silver
Birdy Front Derailleur Seat
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Birdy Front Derailleur Seat
Detail Features: Single speed of Birdy can shift gear, it’s applicable to various front derailleur, and it can use on 56/42T or 53/39T chainrings directly.
Color: Black, Red, Titanium, Silver |