Sacrifice nothing - not durability, dependability, or performance. Uses Exact Actuation cable pull ratio for eay set-up and reliable shift performance. FEATURES : Works with standard or compact 11-speed road cranks Aluminum cage and parallelogram, stainless steel hardware Compatible with SRAM road shifters and 10 speed MTB shifters Aluminum cage and parallelogram SHORT CAGE SPECS: Color: Black/Silver Largest Cog: 28 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 33 Cage Length: Short Rear Der/Shifter Compatibility: SRAM Exact Actuation Drivetrain Speeds: 11 Weight: 188 MEDIUM CAGE SPECS: Color: Black/Silver Largest Cog: 32 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 37 Cage Length: Medium Rear Der/Shifter Compatibility: SRAM Exact Actuation Drivetrain Speeds: 11 Weight: 198