Shimano Altus RD-M310

Spring type: Top Normal • Min cog: 11T • Max cog: 34T • Total capacity: 43T • Max front difference: 20T

• Max Front Difference: 20T
• Maximum Cog: 34T
• Minimum Cog: 11T
• Primary Color: Black
• Cage: SGS
• RD Capacity: 43T
• RD Spring Type: Top Normal
• Speed: 7/8
• Mount: Standard

Special order - ships in 5-10 days from Hawley/Lambert.