I was offered this Sachs Roadster 125 V2 for pennies. The original XV125 (Yammy Virago) engine, after a strip down and new seals fired up great.
So now, as I've come across an XV250 engine in good nick, and wondering about dropping it in to the 125. Considered all (I think), by comparing the full specs for the Roadster 125 V2 verses the Virago 250 V2, came up with the following, all being exactly the same for both bikes:
Brakes - Single 260mm disc, 2 piston calipers, 130mm drum
Chain size - 17.50mm, 10.16mm, 2.0mm, 1.42kg/100 links, 29.8KN
Fork size - 41mm, with 120mm travel
As well as the starter motor, exhaust system, rear spring size and travel also.
The frame on the Roadster 125 being considered way heavier (steel) than most believe needed for a 125. I thought that that might be a blessing, by having the extra strength needed to handle dropping a 250 in there?
So, all the above said, is there anything I'm missing, that might make the conversion a total no no? Thanks, Justin.