Bicycle Rear Derailleur Hanger Extension Gear Tail Hook Extender (Black) Newly

Item Name: Bicycle Rear Derailleur Hanger Extension Gear Tail Hook Extender (Black) Newly. Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK

Bicycle Rear Derailleur Hanger Extension MTB Mountain Road Bike Frame Gear Tail Rear Hook Extender
Specifications:
Material: Aluminum alloy
Color: Black
Size: 45mm*25mm*15mm/1.77*0.98*0.59"
Net weight: 12g
Gross weight: 12g
Uses:
Extended rear derailleur, suitable for 40T / 42T / 46T / 50T mountain bike flywheel or 32T / 36T road bike flywheel, to make the extended flywheel shift more smoothly.

Notes:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.