This is a centrifugally spun iron motorcycle cylinder liner casting. Perfect for making your own liner. o/d = 106mm.
Rengue Iron Motorcycle Side Stand Kickstand Support 380mm Fits CRF50 70 BBR Durable Iron Material Easy Installation Replacement for 14in Rear Tire
Garsent Motorcycle Racks, Grom MSX125 Rear Luggage Rack, Black Iron Motorcycle Cargo Carrier, Larger Storage Space, Fine Workmanship
Yctze Trunk Lock, Iron Motorcycle Rear Trunk Lock High Strength Motorcycle Tail Lock With 2 Keys Fit for Big Sheep Tail Box Lock
BESTOMZ Black Iron Motorcycle Handlebar Brace Clamp Bar Motorcycle Balance Bar with Sleek Exterior Improved Stability and Reliable Performance
Motorcycle Trunk Lock Iron Motorcycle Rear Trunk Lock Anti‑Theft with 2 Keys Modification Accessories Fit for Big Sheep Popular
Small Battery Box, Motorcycle Battery Box Holder With Sturdy Structure Cast Iron, Motorcycle Batteries Carrier Case for 50 To 125 ATV Motorbike Dirt Bike