SRAM Apex Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Black D1 MFPN=SCH020258S0100 3 set-it-and-forget-it adjustments: coil spring

3 set-it-and-forget-it adjustments: coil spring preload

CNC-machined aluminum barrel shaft and T-handle for durability ergonomics and reduced weight

Replacement seal and o-ring kits for servicing rear shocks

Correct hardness to reduce damage to frame upon impact

1-1/8` stem with top loading 4-bolt clamp

SRAM Apex Eagle Rear Derailleur - 12-Speed Long Cage 52t Max Black D1 MFPN=SCH020258S0100 3 set-it-and-forget-it adjustments: coil springThe SRAM Apex Eagle rear derailleur quietly and quickly shifts across their 12 speed Eagle cassettes while 1x specific chain retention technology keeps the chain where it needs to be. Its the best of SRAM's road and mountain bike innovations in one package. Compatible with 50t and 52t Eagle cassettes Works with SRAM 12 speed mechanical Apex and Eagle shifters For use with Eagle 12 Speed chain Roller Bearing Clutch controls chain tension for consistent