The Cane Creek Helm MKII Air Suspension Fork features an upgraded damper design for increased support and control and a redesigned air spring that allows for increased air volume for better traction and suppleness.Max rotor size: 2031.5" tapered steerer tube diameterCompression and midvalve circuit offer increased support and controlSKF oil seal head cartridge and wiper seals are low frictionThe redesigned air spring offers increased air volume for better traction and supplenessThe threadless air seal head allows for easier travel changeDamping features include: high speed compression, low speed compression, and low speed reboundAdjustment options include: high speed compression (10 positions), low speed compression (17 positions), Low speed rebound (10 positions), independent positive air spring, independent negative air spring, and an indexed travel system (8 positions)Double-Air spring system: high volume positive and negative air springs"D-Loc" 15mm bolt-on thru axleItem SpecificationsAxle to Crown Length563Brake TypePost Mount 180ColorGloss BlackCrown Race40Defined ColorBlackExternal AdjustmentsHigh Speed Compression DampingExternal AdjustmentsLow Speed Compression DampingExternal AdjustmentsRebound DampingFront Axle15mm Thru x 110mmLockout SwitchNoneMaximum Tire Width64Negative SpringAirOffset44Positive SpringAirS.H.I.S. Stem Clamp Diameter28.6Stanchion Diameter35Steerer Tube Length (mm)265Steerer TypeTaperedTravel (mm)150Weight2080Wheel Size29" Cane Creek Helm MKII Air Suspension Fork Suspension Fork UPC: 840226098807