Shimano SM-SP18M is used to guide cables under the bottom bracket. It is made of composite material and is attached via the M5 screw thread on steel frames. This distinguishes it from the SM-SP18T cable guide.

Technical Information:

Material: Composite

Compatibility:

- screw fastening in existing M5 frame thread
- suitable for steel frames

Features:

- for cable routing under the bottom bracket

Manufacturer Part Number:

A-SMSP18M