RSP Cassette Expansion Sprocket

Easily extend your current 36t cassette to 40 or 42t cassette. Simply remove your 17t sprocket to make room for your expansion sprocket

• Coverts 36t 10 speed cassettes to 40 or 42t
• Compatible with most cassettes
• Compatible with medium and long cage derailleurs
• Extended derailleur limit screw supplied which will be required for some derailleurs
• Teeth: 40 or 42t
• Colour: Black, blue or red