cb750 fiberglass tank

daveyd

New Member
ok so here it is people. I started a post a while back, with no luck looking for a stock looking fiberglass tank for my 75 cb750. No luck though. So now my question is, if I were to use the stock tank as a template to wrap the glass around, top,then cut out the bottom and glass it, like ringos drop dead gorgeous 550 lemans,would it work? i really want to make it as light as possible and semi stock looking. and would it even be that much lighter being made of kevlar or fiberglass? my end goal is as much weight loss as possible.
 
If weight is your issue, use the stock tank. Glass heavier than you think. Its also somewhat dangerous. If you wreck, it doesnt dent. It cracks. And gas goes everywhere, including all over you hot motor and exhaust.
 
A thin carbon fiber tank would weigh less but that's an expensive way to save a small amount of weight. As Mr Von mentioned, F/glass typically is too thin and flexible or it's too heavy. Race weight tanks are great on the race track but tend to crack and split on the street.

Fiber tanks are easier to mass produce at moderate cost than metal for a "different" look but they don't save a lot of weight.

It rather depends on what you are trying to achieve. You could modify a stock tank to your new shape and then take a mold off that and make a new tank in carbon fiber for that super trick almost stock sleeper look. Or just use paint to change the visuals and save weight elsewhere. Or just modify the stock tank - maybe make it lower or thinner or whatever and pressure test it before you paint it.
 
Also, not sure what your budget is, but Chris (Ringo) spent a good chunk of cash and a MASSIVE amount of time to fab that tank/seat. Hundreds oopon hundrends of hours.
 
Oh Sorry, I thought they were plastic like the others on the site. Would be great if you could get a plastic version of this tank but.........
 
agreed. But the only way I can think of to make a solid plastic gas tank is with a blow molding or maybe roto molding process. Both of which have significant tooling costs.
 
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