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Description:

- Made of lightweight and durable alloy
- Mechanical bike wheels with fully sealed bearings for center bolt derailleurs
- Apply most 11 teeth rear derailleurs on the market
- 4/5/6mm spindle shaft roller settings 7/8/9/10 speed
- Rear derailleurs require 2 pulley wheels.

Specifications:

- Product: Saywheel
- Material: Nium Alloy
- Pulley wheel size (diameter): approx. 4.5cm / 1.77"
- Bolt Size (diameter): 0.4cm / 0.16", 0.5cm / 0.2"

Package Includes:

1 Piece Bicycle Pulley Wheel
Two bolts (4mm and 5mm)

Note:

1. Please allow 1-3mm error due to manual measurement. Please dont worry before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!