Vintage Schwinn Impact 4130 CR-MO Steel Mountain Bike Frame & Fork (18 1/2 - Medium). Vintage Schwinn Impact MTB Bike Frame and Fork. I suspect this Mountain Bike is from the mid to late 1980s and considered a medium or big medium frame set: It measures: Seat tube 43.5cm Center to top of the top tube or 47cm or 18.5 bottom bracket Center to Top of the seat mast, with a 54.5cm center to center top tube and the head tube is 92mm tall. The Frame is made of 4130 CR-MO / Chromoly Steel tubes and has an unique finish, a type of gun metal chrome process. The 1 Threaded Fork has 100mm Spacing and the Frame has 126mm Rear Spacing.
Frame & Fork has studs for cantilever brakes. Serial Number is # GS8044xx.Pretty Sure this Frame set was made by Giant for Schwinn. Frame is Used, it does have scratches, has finish & decal loss, nicks, fading, shows wear, possible rust and small dents.
Plenty of Pictures to mull over. This frame had 26 wheels, Not Included but for wheel size reference. Lux Low Bikes suppling parts for your Vintage Road Bike, Randonneur Tour Bike, French Hiker, Antique Racer, Club Bike, Track Bike, Fixed Gear, Urban Street Machine, Gravel Grinder, Vintage Mountain Bike, Old School BMX, Prewar Klunker, Classic Schwinn, Antique Bike Restoration, Prewar Wood Wheel Bike, Vintage Ratty Mc Rat Rod, Lowrider Bike, or Custom Schwinn Chopper Bicycle Project.
If you have a problem with your order, We strongly suggest emailing us first for our best solution to the problem. We Hope You Enjoy Bikes as Much as We Do, Check Out the new look of Lux Low our Ever Growing Bicycle Portfolio of Antique and Vintage Bicycles from 1890 to 1990.We Specialize in Full Antique Bicycle Restoration, Custom Chopper Bicycles, Antique Wood Wheel Safety Bicycles, Vintage Cruiser Patina Restores, and Vintage Road & Racing Bikes. We Excel in Patina Wood Wheel Restores: Miami, Racycle, Mead, Ranger, Dayton, Iver Johnson, Spalding, Pope, Columbia, Sterling, and Repainting Schwinn Krate, Stingray and Ballooner Bikes, Prewar Elgin, Colson, Shelby, Dayton Huffman, Cleveland Welding, Hawthorne, Roadmaster, and Dope Azz Custom Bikes.