mr50 w/mb50 engine

[z50 chopper]

Ok so it is not exactly a pitbike but it is a 2 stroker



I am looking at possibly getting an MR50 frame and a MB50 engine they appear to be virtually identical engines. So my question is will the mb50 engine fit the mr50 frame?

[PlanetMinis.com]

[Luckystar64]

Only one way to find out.... try and bolt it in. The MB is a 5 or 6 speed I think. The more gears it has, the thinner they are- this equals less durability. The gear ratios are probably much taller in the MB motor too. --L*64

[boobby]

the mb5 is a 5speed and you can make it a 6speed with a cr80 transmission...the 1981-82 cr80 and mb5 share the same case

[Jthomas7]

I was just about to post what he said. I have several MR50 frames out the garage and had a few 80-81 CR80 engines that I sold. From what I remember they were quite a bit bigger than these tiny MR50 engines.

[firepower354]

MR50



MB5