classic motorcycle forum

Motorcycle Discussions => British Bikes => Topic started by: Birddog on January 24, 2007, 02:00:23 AM

Title: serial number H55900 engine and frame
Post by: Birddog on January 24, 2007, 02:00:23 AM

What do i have?  Triumph- H55900 serial number engine and frame.

Title: Re: serial number H55900 engine and frame
Post by: L.A.B. on January 24, 2007, 03:15:20 AM

From that info all I can say is that it's either a 1967 350cc or 500cc unit twin model .

Title: Re: serial number H55900 engine and frame
Post by: Birddog on January 24, 2007, 03:27:20 AM

thanks so much.Yea you are correct. it is a twin 500.found the old paper work from where the motor was gone through in the mid 70's. it looks like they beefed up everything from pistons to cams.thanks for the help.