First of all, sorry for all the text. *I'm sure someone will be offended so fair warning I need a *great* editor for my own biz plus have a cold; hence patience genuinely appreciated, okay?!
I will wager someone viewing this thread, or perhaps already signed as a member, enjoys doing the physics/ math on such "puzzles." *I admit I was known to at least try a bit of that, WAY back. *But then the puzzles of life and biz, largely displaced my own "extra cycles", so-to-speak, for my even wanting to attempt dusting off my math and physics/similar, from far too long prior...
This said, seems that some of the key, most obvious considerations for the challenge of lowering CG here, would include:
1) Rider's own weight. *Surely FAR too simplistically (I mean dusty recall on such calculus!); you lower the average Rider's own CG placement by say just two inches and that's going to have a bigger effect than lowering roughly 40ish lbs or so last I reminded myself what gas weighs and the tank size/ likely weight here, by six inches. *This variable is also obviously a function relative to the weight of the bike. *Small displacement sport bikes ridden by big riders obviously "care more" than big cruisers ridden by "light as a bird," riders. *(WARNING: bad puns set ups!)
A) Of course, designers of small sport bikes will surely cry "foul" (or "fowl" in comparison?!), as designers for cruisers "get to" consider their more commonly "porcine" riders. *Sorry guys; but we gotta face facts, right?! *
B) No question mass kills or protects. *Cruisers FAR (!) too often see their design limits exceeded and I guarantee this plays into the increased death rate trending markedly in more recent years to cruiser riders versus the years ago sports bike youngsters. *Age does, too; how often did a rider simply have a heart attack and then missed that curve? *But I digress...
C) To further complicate such considerations a bit, you might successfully build and market (!) a sport cruiser *sporty enough,* such that you manage to actually shift the market appeal enough, resulting in "weighty impacts," so-to-speak, to your rider demographics. *Flash forward two years and perhaps CTX1300 riders will tend to be more physically fit and trim than some other brands' typical "porker" (I'm starting to Puns-Pain myself here so hopefully not too many others of you are too-pained now also). *I further suspect I'm risking getting into "endless loop" zone with all the variables, too?!
2) shaft drive isn't light. *Especially when most cruisers use belts. *Advantage to Honda here obviously due shaft is nice and low. *Of course, it isn't quite centered so that needs weighed in.
3) engine and driveline inclusive of counterbalancers, of course. *All else "being equal," four cylinders weigh more than two and air cooled will be lighter. *And configuration/ layout obviously plays in. *A clean sheet design helps and Honda clearly did that here. *With virtually everything. *
...prudent, smart and clearly ultimately also; good for us!
4) obvious offsets above Target CG by fairing, etc.
5). And surely centering and tires. *For example, we all know how "squared off" tires, can find our bikes feeling like they drop off a cliff, when we're riding to those edges. *And by centering here, I especially mean that clearly if you have "too wide" a mass, the progression as you lean off center is going to want the bike to drop too fast, etc. *
For fun now (to someone...heck, anyone?) here, I'm also thinking we'd presumably also want more "linear" progression as we lean the bike. *This as opposed to, shall we say, "Richter Scale" like. *Yup, I mean geometric/ exponential, much like earthquakes! *I did say for fun; we've all felt our own "earth move" in moments of panic as we lose our balance, right?!
Okay then, I just hurt my head and it already hurt from my head cold! *So I should stop before i go Hog Wild with all this...
I look forward to some of you folks far less dusty on such toolsets/ considerations to correct any of my folly here or otherwise weigh in with your thoughts; light or otherwise! *And for my part at least, I'm far more inclined nowadays to much prefer the real world experience (the ride!) as opposed to reading, visualizing it or otherwise hoping "digital" will suffice, to say the least...
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