How 'bout this? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 32 (permalink) Old 12-01-2009, 08:51 PM Thread Starter
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How 'bout this?

I'm short, so I want my bike as low as possible.......However, I also ride the mountain twisties such as the "Dragon" a lot. So I want to minimize dragging bottom while in the sharp turns....

So how does this combination sound?
.....11" rear progressive 412 shocks, lowers bike an inch or more and brings fender closer to tire....which looks better.
.....170/80-15 Rear tires, raises the bike back up some, lowers Rpms, and maybe puts more meat on the ground.
.....110/90-19 Front tires....better handling and makes speedometer closer to accuate.
......????possibly lowering front forks with progressive springs, also better handling.

So Tires raise the bike and shocks and springs lower it.....

What would be the NET lowering (or raising )of the bike...
Could I do the REAR shocks and tire first.....then the front later??
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post #2 of 32 (permalink) Old 12-01-2009, 09:38 PM
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Quote:
Originally Posted by Grits View Post
I'm short, so I want my bike as low as possible.......However, I also ride the mountain twisties such as the "Dragon" a lot. So I want to minimize dragging bottom while in the sharp turns....

So how does this combination sound?
.....11" rear progressive 412 shocks, lowers bike an inch or more and brings fender closer to tire....which looks better.
.....170/80-15 Rear tires, raises the bike back up some, lowers Rpms, and maybe puts more meat on the ground.
.....110/90-19 Front tires....better handling and makes speedometer closer to accuate.
......????possibly lowering front forks with progressive springs, also better handling.

So Tires raise the bike and shocks and springs lower it.....


What would be the NET lowering (or raising )of the bike...
Could I do the REAR shocks and tire first.....then the front later??

I seriously doubt that you are shorter than me,5'6" and i have not lowered the rear of my bike although if you can afford them ,I don't blame anybody for wanting better rear suspension but I did drop the front trees down on the tubes7/8" and installed the same size tires you mentioned,when it comes to a lower seat height,I removed the seat cover and thinned down the seat padding and recovered it with out the buttons.I ride pretty aggressively in the twisties as most of my riding is done with sportbikes.dropping the front using this method actually shortens the wheelbase slightly and lessens the trail on the front end,which makes the bike easier to flick back and forth in the turns.
I ended up with about 1"lower seat height and actually improved the handling (which is an individual preference) with little loss of ground clearance.you need to keep in mind everything is a trade off,what you gain in quick handling you will lose in straight line stability.




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post #3 of 32 (permalink) Old 12-01-2009, 09:42 PM
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I can't remember for sure, but I would think to combine the larger tire and lowering the bike that much might be a problem for the tire rubbing on the swingarm.

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post #4 of 32 (permalink) Old 12-02-2009, 04:37 PM Thread Starter
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Thanks Guys....

I've ordered the 11" 412 shocks and the progressive front fork springs....
After they are on I'll find out for sure what fits...maybe 160/80-15??
I'm thinking of putting a car tire on the rear...Darkside...



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post #5 of 32 (permalink) Old 12-02-2009, 08:38 PM
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Originally Posted by Grits View Post
Thanks Guys....

I've ordered the 11" 412 shocks and the progressive front fork springs....
After they are on I'll find out for sure what fits...maybe 160/80-15??
I'm thinking of putting a car tire on the rear...Darkside...


Another case of wanting the cake and eating it too. Car tire? really, that thing will not help at all if you plan on riding the dragon.

Lowering the bike an inch and half ..(11 inch shocks to 12.5 stock) will only limit cornering clearance. You can not make it handle better by limiting lean.Handling will lose some in this comprimise.

Now if you alter the placement of the exhaust and move or remove anyting that might touch when the bike is leaned over , you can gain some back this way.
To me the only reason to lower the bike is because you are a freakishly short and your tiny little feet can't touch the ground.
Saying you are doing it for "looks" will of course bring you back to that comprimise.


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post #6 of 32 (permalink) Old 12-02-2009, 11:14 PM Thread Starter
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Hey KnifeBreaker...How long since you've been to therapy? Quit skipping...)

I'm thinking the bigger tires will bring the bike back up....
But the rear fender will be closer to the tire which looks better.

1 1/2" lower by shocks, then 1 inch higher by larger tires...net only 1/2 inch lower in rear... similiar in front...

bigger rear tire = lower RPMs and better gas mileage..
bigger front tire = better looks and corrects speedometer..
Both put more rubber on the ground and only a slight lowering...
Darkside is only an interesting thought....maybe....maybe not.

If it works, it would be a good improvement for me at 5'5" and my tiny feet.

....GritsHole
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post #7 of 32 (permalink) Old 12-03-2009, 08:17 AM
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Oh boy, wait - let me get some popcorn. Ok, go!

Actually, I don't know of too many people who have messed with the suspension on our bikes. Gritface, I'd be interested to see what you end up doing and how your mods alter the bikes specs. And of course to see pics of whatever you do to it...
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post #8 of 32 (permalink) Old 12-03-2009, 09:52 AM
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shorter shocks are going to mess up your handling. id say get a custom seat to lower your ass a bit.

Last edited by 6204; 12-03-2009 at 09:54 AM.
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post #9 of 32 (permalink) Old 12-03-2009, 12:47 PM
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5'5"... All I can think of is Randy Newman.

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post #10 of 32 (permalink) Old 12-03-2009, 02:46 PM Thread Starter
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Quote:
Originally Posted by LibertyPilot View Post
Oh boy, wait - let me get some popcorn. Ok, go!

Actually, I don't know of too many people who have messed with the suspension on our bikes. Gritface, I'd be interested to see what you end up doing and how your mods alter the bikes specs. And of course to see pics of whatever you do to it...
OK LPea,

If this works I'm gonna bragg a whole lot and post pics and say "I told you so" and go on and on about my genius idea and how great it works,...and.......and...and....

But if it doesn't work, I dont want any crap outa you clowms on here!!

.....GritFaceGenius...
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