RockShox Monarch RT3 Rear shock 200x51 Shaft Eyelet: Standard Body Eyelet: Standard MidReb/MidComp Soft Pedal 320 Lockout ForceDebonAir air spring makes for one of the most plush air sprung shocks ever Lightweight XC All Mountain racing oriented rear air shock: 215g Soft Pedal Tune with 320lb lockout force Solo Air spring system: single Schrader valve, dual chamber air spring with self regulating negative pressure RT3 oil damping system with dual flow rebound and 3 position compression+floodgate circuit adjustability Fast Black hard anodized, 28mm aluminum body shaft with sag