Does anyone know what the steering head rake is on a 75 250 Penton frame? And did they change the rake from a 73 Jackpiner on the 75 250s?
Not sure about the rake being different, but on the 175 I had, may have been a '72, the distance from the crank to the front wheel was lengthened starting with the '73 250's, cornering was not as good as 175's. When I raced vintage with Penton 250 and 400's, I always put the engine in old 175 frames!
So the 250 motor will bolt into the 175 frame? the motor mounts are the same?
175, 250, 400, all the same
That helps me a bunch, Thank you, JP