Extend the range of your SRAM 10-speed drivetrain with this Stronglight 40T cassette extender and conversion chainring, machined from 7075 aluminium. Designed for riders who need a larger cog option without a full drivetrain swap, it's a practical solution for adding climbing range to a 10-speed SRAM setup. The CNC aluminium construction keeps weight in check while delivering durability where it counts.

• 40-tooth cassette extender and conversion ring for SRAM 10-speed drivetrains
• CNC machined from 7075 aluminium — strong and lightweight
• Adds climbing range without a full drivetrain replacement
• Stronglight precision construction for reliable engagement
• Purpose-built for 10-speed SRAM compatibility