A few comments from one who's ridden quite a few bikes with air scoops:
- the air scoop will keep your running temperatures
warmer/hotter when your ride slowly, i.e. in city traffic; that is because the amount of air wich cools the sump with the scoop, at low speeds, is less than the amount of air without the scoop;
stop at a traffic light for too long and the sump will
fry...
- the air scoop works wonders provided the "hole" and the area under the sump match a predetermined ratio, creating a
venturi; in other words the "hole" has a size => area, and the area under the sump has a volume:
given the "area/volume" ratio, the lower the number, the higher the cooling factor, until a certain point, after which the venturi effect of the scoop becomes marginal and you're better off without it...
You need to find a good book on venturis to understand the principles, that is why most good quality air scoops are dedicated to a specific make&model, it's not about the mounting brackets...
- the air scoop also has an aerodynamic function, as it keeps the front wheel down, but this makes sense only if you ride a cafe racer... real fast! At 60mph, on a cruiser, it won't help at all, as most of the weight is on the rear tire anyway.
Having said that, I need to point out that the "
RIZLA+" on the blue cafe racer Savage in Page 1 is NOT the rider's call sign, it's the sponsor (real or wannabe).
Suzukis make wonderful clubman racers... and RIZLA+ is rice paper for rolling you own...
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