Metal Composition of Motorcycle Chassis

mymachine

Hello guys,

I wonder and would like to know what kind of metal to made a motorcycle chassis such as Yamaha YZF-R1 and Yamaha Raptor 700R?

Is it solid or hollow?

Is it cast or extrude?

Thank you

MyMachine

pantaz

Modern chassis designs use a variety of materials and processes. It is quite common to find cast and/or forged sections joined to extruded aluminum.

Google will find you myriad references to more specific information.

Ranger Mike

4130 Chrome-Moly is usually used in custom builds and i suspect mild steel tubing is used on stock factory rides

pantaz

The YZF-R1 primary frame is aluminum (welded together from castings and extrusions), with a cast magnesium rear sub-frame.