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cdhpower2012 has been registered on Ebay. We are the only brand owner. We did not authorize any third party to use our pictures or brand.Please recognize cdhpower brand. CDH 20X4.0" Fat Tire Bike Fork, Air Suspension Bicycle Fork Double Shoulder Fork Package include: 1pc 20*4.0" Fork Key Product FeaturesCDHPOWER 4.0" Fat Bike Snow Fork Fat Bicycle Fork. Durable Construction: Built with an aircraft-grade aluminum body and high-strength steel stanchions, this front suspension fork can withstand heavy off-road use.Travel: 170mm Spread: 135mm Smooth Riding Performance: Air suspension damping absorb bumps and vibrations for a comfortable ride over rough terrain, ensure reliable handling on trails and hills.Fit 11/8" Headset (not included) and works well with the fork，1 1/8" headset：For 44mm Head Tube and 28.6mm Fork and 9mm quick release.Easy Adjustability: The manual lockout lets you stiffen the fork for paved sections or free it for more suspension over obstacles.PLEASE NOTE1: the best safe speed if racing: 35km/h；Outside Diameter of Up Tube: 32mm/1.26inch and 43mm/1.693 inch for lower leg Double Shoulder20"* 4.0" Fat Tire Air Suspension Fork Manual Lockout, Air suspension damping.Outside Diameter of Up Tube: 32mm/1.26inch and 42mm/1.693 inch for lower legDisc brake bracket( center hole to center hole: 75mm) ;compatible with 20"*4 inch tire maxTravel: 170mm Spread: 135mmPLEASE NOTE1: the best safe speed if racing: 35km/h；ReferenceAir Suspensionshoulder manual control260mm length1 1/8" Threadless HeadtubeDisc brake bracket( center hole to center hole: 75mm)The air pump valve for the forkQR: 135*9mm CDHPOWER Support Team. Thanks for your trust and choosing CDHpower.CDHpower is registered officially in year 2012 and started business in year 2008. is the original,Reliable,Legal and Honest Company with USA Brand CDHpower supplying many merchandises such as 2 cycle and 4 cycle Bicycle Engine Kit,Spare Parts of gas engine kit including higher performance parts and CNC machined parts, CDH Gas Bike,CDH Bicycle,spare parts of bicycle and some products developed and being developed in China.CDHpower is the FIRST CHINESE company engaging in Volume producition on CDH GT gas bikes and CDH gas frame In China!CDHpower offers the best selection of gas motor kit, gas bike, gas frame ,bicycles, spare parts and many other products! You'll find an abundance of exciting options to choose, and our checkout process is quick, safe, and secured. Thank you for looking, if you have any questions, feel free to ask and I will do my best to get back to you promptly!Products usually shipped on the second business day and you will receive message of tracking ID.CDHPOWER is registered officially in year 2012 and started business in year 2008, we can provide engine kits, high performance spare parts of engine, motorized bicycle and spare parts of bike.