MEROCA Rear Derailleur Guide Wheel 11T/13T is designed for mountain and road bikes. Made from aluminum alloy with a steel bearing, it’s offered in two sizes to match common derailleurs: 11T (~41 mm) and 13T (~49 mm). It supports 4/5/6 mm shaft guide wheels.
This replacement wheel helps restore reliable guide wheel performance when the original is worn. It works with compatible rear derailleurs to support smooth chain guidance and consistent shifting under normal riding conditions.
- Material and bearings: Aluminum alloy body with a steel bearing for durability.
- Size options: 11T (~41 mm) or 13T (~49 mm), compatible with 4/5/6 mm shafts.
- Weight: 8.8 g (11T); 13 g (13T).
- Sealing and durability: Waterproof and dustproof design.
- Color options: Multi-color finishes available.
- Installation and fit guidance: Easy installation; choose size close to the original. If different, chain length may require adjustment.
Light specifications: Color options include multiple finishes; weight varies by size as noted.
Fit: suitable for rear derailleurs that use 11T or 13T guide wheels and accept 4/5/6 mm shafts. Verify your current wheel size and adjust chain length after installation.
