|
The Honda Grom would be a good bike to do projects on.
It's a newer engine, with fuel injection.
Newer engines mean smaller tolerances, which in turn means higher efficiency than the older engines.
Some 100cc's of the days of old, wouldn't even make 4HP stock.
With some tuning, they could do 5 to 6 HP.
The Grom has 9HP, just like Sachs Madass 125.
A 125cc is right on the mark for a fuel sipping eco commuter.
A 110cc would in my opinion be too small, when trying to get to speeds over 40MPH; unless you want to ride a scooter with fairings like that of a UFO.
I would be too embarrassed for it.
The drawback of a 250cc is that it uses a lot more fuel than a 125cc or lower CC, by just idling.
On the other hand, a 250cc can easily get 120MPG or more, cruising at 30MPH, yet if need be, it can go 80MPH at half that MPG.
A 110cc would have better average MPG (with start-stops), and similar MPG @40MPH, but lower MPG at speeds like 55MPH.
By design, larger engines run more efficient than smaller ones, because the losses on small engines are much greater (heat loss, friction losses, etc..).
I think both Sachs Madass, Roketa MC-05-127, and the Honda Grom are 3 platforms that are excellent for city and town commuters!
This forum will become really interesting, if more of the current technology engines are being mass produced, like the wave disk engine, rotary engine, and the duke engine. All supposedly are more efficient than the standard 4stroke engine!
|