Prouct Details: Product Model: 20 Carbon Fiber Folding Bike Package Size: 1370750 Wheel Size: 20 inch Color: Silver Grey,Black Red Height: 148mm-180mm Weight: 10kg/22.05lb (not include package） Fork: carbon, disc fork Handlebar: 5609° Head parts: 1-1/8 28.652*39.8mm Stem: Folding head tube, double, stem:300MM, w/o teeth; Bend: 10° Shimano 4700 Groupset 20-Speed Derailleur / Brake System: Shift lever: SHIMANO SHIFT LEVER, SL-4700,TIAGRA,2*10 SPEED Front Derailleur:SHIMANO FD-4700, TIAGRA, FOR 10-SPEED Rear Derailleur: SHIMANO REAR DERAILLEUR, RD-4700, TIAGRA, GS 10-SPEED Brakes:SHIMANO M315 oil brake, F/R1000 R/L1700 Transmission Control System: Freewheel: HR10-10 11-28T,10S,Cassette Sprockets,N:Nickel Chainwheel: PROWHEEL DESIRE-621-TT-1 53/39T*170 10S Chain: KMC X10 /GY/BR/110L/PPO, Brown Pedals: Folding Pedal Shimano 5800 Groupset 22-Speed Derailleur / Brake System: Shift lever: SHIMANO SHIFT LEVER,SL-R700,TIAGRA,2*11SPEED Front Derailleur:SHIMANO 105 FD-5800,TIAGRA,FOR 11-SPEED Rear Derailleur: SHIMANO 105 REAR DERAILLEUR,RD-5800,TIAGRA,11-SPEED Brakes: SHIMANO M315 Oil brake, F/R1000 R/L1700 Transmission Control System: Freewheel: SHIMANO-5800 11-28T Chainwheel: PROWHEEL DESIRE-621-TT-1 53/39T*170 11S Chain: KMC X11 /GY/BR/110L/PPO, Brown Pedals: Folding Pedals Shimano 3000 Groupset 9-Speed Derailleur / Brake System: Shift lever: SHIMANO SL-R 3000,SORA,right lever 9s Rear Derailleur: SHIMANO RD3000, SORA GS 9-SPEED Brakes: SHIMANO M315 oil brake, F/R1000 R/L1700 Transmission Control System: Freewheel: R42-9 11-32T 9S CP Chainwheel: Prowheel 53T*170 9S Chain: KMC Z99/GY/BR/118 L/PPO,brown Pedals: Folding Pedals Ready Ride by SAVA: Be riding sooner than ever before! Our program allows you to spend less time assembling your new bike. SAVA Ready Ride bikes are hand-built and shipped straight to you. All you need to do is put on the front wheel, seat, and pedals. Yes, the brakes are dialed in and the derailleurs are adjusted: just pump up the tires and get out to ride. Warranty & Refund: 1)Please carefully inspect all items immediately when u sign it. If there is any obvious freigh damage. DO NOT sign the freight bill unless the damage is noted on the freight bill.The client has the option of rejecting the shipment at the time of delivery. If the item is defective after you sign and open the package, please notify us within 48hours with pictures of the defective item. We will work with customers to solve any problem. we will help u deal with the case within 2 days and give you a satisfied solution . 2) Products MUST BE returned within seven (7) days or the return will be disallowed All returns must be freight prepaid by the Sender or carrier.All returns are to be shipped back to company?s warehouse in its ORIGINAL PACKAGING.New items or Repaired items will be shipped to you after we receive the items for replacement .Refund will be granted after we receive the returned items in original packing.