The Bomber Z1 Coil fork shares the same 36mm chassis and GRIP damper as the modern-day Bomber Z1 but combined with the most advanced coil spring system Marzocchi has ever made. Finally a buttery smooth coil fork with nothing to prove. Braking bumps or big hits it doesn't matter. The Bomber Z1 Coil soaks it all up with the planted feel that only a coil spring can provide. Better traction. Less arm pump. Tough as nails.Stout and proven 36mm chassisUltra-lightweight tempered silicon-chromium steel spring (Medium Spring included)Noise management system for near silent performanceIntegrated air assist for progressivity and bottom out controlExternal preload adjuster to dial in sag and firmness off the topTravel can easily be changed in 10mm increments via included reconfigurable internal spacersAdditional springs sold separately to fine-tune and adjust for rider preference