26ER Carbon Fat BikeFramesPorfessional design carbon fat bike frames with 197mm alxe rear space,but you can choose 135mm fork or 150mm fork. The 120mm length bottom bracket provide you perfect power efficiency. What’s more, you can fix the rack for your long distance riding. Item26ER Carbon Fat Bike FramesItem No.MFF197Warranty2 yearsSize16", 18",20"Use forMountain Fat Bike,Fatbike,Fat Tire BikeDisc rotor size160mmMaterialHigh Modulus Carbon Fiber Toray T700SpaceFront space : 135*15mm or 150*15mm, Rear space: 197*12mmCarbon WeaveUDHead tubetop 1-1/8", down 1-1/2"Finishmatt/glossybracket typeBSA/BB30Cable RoutingAll Internal CableWeightFrame 1290 ±45g, fork 620±15gStandardEN standardBrake systemDisc brakesDecalcustomized or TIMETECSeatpost Diameter31.6mmGoupsetMechanicalMax tire size26er * 4.8"BB length120mm    We offer 1 year warranty for wheels/rims and 2 years for frame/fork/seatpost. You can claim for replacement or refund after you receive our products. Below are the warranty procedure:1. Please make sure the warranty is valid before submitting your claim. 2. Please send an e-mail to warranty@timetec-cn.com with below details. - Order number, Item number, specification (size, weave, finish, spoke holes, hub etc.). - Clear pictures or video to show the defective parts.- Description of how long and often you have used the products, how you found the defect. More details will be highly appreciated. 3. If your product is confirmed to be defective in manufacturing technique, you can submit an return or exchange claim. But pls make sure items are in below conditions.- Items are new and without being used- Items are packed in original package. If can’t be returned with original package,you must pack it with safety box to avoid damage during return. Also all spare parts concerned must not be lost.4. Normal wear parts like spokes ,hubs,nipples,rims/frame crash are not under warranty as well as the accident damaged.5. If you are not satisfied with the produts you buy and want to exchange or return, you just need to pay the return shipping cost.Xiamen Timetec reserves the ultimate right to interpret the above warranty policy.