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ROAD FORCE BALANCING FOR A SMOOTH RIDE

If you machine your own plate, I believe the bore is 28mm but check to be sure. Also, if you are pressing studs, consider that the spacer needs to be absolutely flat on the faces and parallel to prevent wobbles AND the spacer must be counterbored to receive the heads of the wheel studs. Maybe you are considering threaded studs which require no counterbore, but will require some very aligned drilling and tapping. Not demanding this is how it must be done, rather sharing some concerns that may arise.

Apparently, I am fortunate that the drive cup on the balancer I own is small enough to work with no adapter. I was worried at first and was scoping out my adjustable adapter similar to the one shown with legs and studs, possibly setting it up for 3 hole wheels.

As I said, no doubt road force would be best if done correctly. However without going crazy I obtained balance and no shakes in the bars, with a proper dynamic balance (and added corrected the factory mistake of 1.0 oz of needed weights).

All the best with it.

PK

Thanks,

I had not considered that the drive cup was different sizes on different machines. So as you suggested I will have to have a counterbore to drop the heads of the studs below the surface. That means starting out with a thicker slab of steel.
 
Thanks,

I had not considered that the drive cup was different sizes on different machines. So as you suggested I will have to have a counterbore to drop the heads of the studs below the surface. That means starting out with a thicker slab of steel.

Honestly, if you just made a flat parallel circular plate, acting as just a shim, it would only need 3 studs threaded in to "drive" the wheel assembly (no lug nuts). A cone for centering could be used on the outside of the wheel along with the retention clamp. Pretty much the same as the standard balancer, just able to handle the smaller mounting flange of the Spyder rim.

In the end, it may be easier to just as someone suggested find a shop that can balance Smart Car wheels.

FWIW, my balancer is a Snap On WB200, old school, hand spin but works very well.

PK
 
Road Force Balancing

Road force balanced my 2014 RT-S front tires, got one side down to 1 lb. road force, and the other side to 8 lbs. Less than 20 lbs. is the goal. Its poring rain right now, will be interesting to see how much difference it has made.
 
Road force balanced my 2014 RT-S front tires, got one side down to 1 lb. road force, and the other side to 8 lbs. Less than 20 lbs. is the goal. Its poring rain right now, will be interesting to see how much difference it has made.
how did they balance the tire. Spin balance or force balance. the guy that did mine said they were to small to road force test? I have taken them back 2 times now for issues 45- 55MPH
 
how did they balance the tire. Spin balance or force balance. the guy that did mine said they were to small to road force test? I have taken them back 2 times now for issues 45- 55MPH

I actually did my own work, the machine did both. Its is very tricky setting up machine due to spyder wheels. The machine checks roadforce first, then spins at higher speed for balance. The funny thing is the tire with less roadforce has more weights. Rain has stopped for now I will road test today.
 
Road tested RT-S today. All vibration gone. Highly recommend road force balancing, not a cure all but just may smooth out your spyder.
 
Still Confused about Balancing

In the above thread, several folks had their wheels balanced with no mention of "adapter plates" and such, yet others talk about a couple diff type adapter plates required, and also someone said that our front wheels can be balanced by a dealer that does Smart Car wheels.

Does anyone know for sure that they can be balanced by a Smart Car dealer? This would be easier for me to find than searching out tire shops with Hunter equip that are not likely to have any of the above mentioned adapters for our wheels.
 
In the above thread, several folks had their wheels balanced with no mention of "adapter plates" and such, yet others talk about a couple diff type adapter plates required, and also someone said that our front wheels can be balanced by a dealer that does Smart Car wheels.

Does anyone know for sure that they can be balanced by a Smart Car dealer? This would be easier for me to find than searching out tire shops with Hunter equip that are not likely to have any of the above mentioned adapters for our wheels.
BigO tires shops have the hunter machine
 
Balance solved to my satisfaction

In the above thread, several folks had their wheels balanced with no mention of "adapter plates" and such, yet others talk about a couple diff type adapter plates required, and also someone said that our front wheels can be balanced by a dealer that does Smart Car wheels.

Does anyone know for sure that they can be balanced by a Smart Car dealer? This would be easier for me to find than searching out tire shops with Hunter equip that are not likely to have any of the above mentioned adapters for our wheels.

Took the fronts down to my neighborhood station. He put them, one at a time of course, on his hood type ordinary balance machine. The "cone" he used fit nicely and after checking the run-out, he started the machine. The tire with a load of weights was ok, but the tire with one weight was way off. He removed that weight and placed two 1/2 oz weights at a diff location, about a foot from where the orig weight was. Reran the machine and it balanced perfectly. I realize this doesn't rival the Road Force machines, but it was easy and convenient. Total cost: $5 :)
 
Took the fronts down to my neighborhood station. He put them, one at a time of course, on his hood type ordinary balance machine. The "cone" he used fit nicely and after checking the run-out, he started the machine. The tire with a load of weights was ok, but the tire with one weight was way off. He removed that weight and placed two 1/2 oz weights at a diff location, about a foot from where the orig weight was. Reran the machine and it balanced perfectly. I realize this doesn't rival the Road Force machines, but it was easy and convenient. Total cost: $5 :)
I bet it still is not balanced right & out of balance 45-55 range. Let us know?
 
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