Bill, Feel free to post the following on your CanAm Spyder forum. I should have taken a couple pictures of the cone & adapter setup we used!
Additional information that may be beneficial to others seeking a vibration-free ride with the use of
Hunter's GSP9700 Road Force Balancer:
Hunter has a web site to locate shops that have 9700s (
www.gsp9700.com) whereby you can enter a zip code and search around that area. You will not be able to know if the shop has sent technicians to
Hunter's advanced "Rolling Smooth" training and you will not know if they have the adapters needed to mount and center the Spyder wheels on the unit. On the other hand, using the necessary adapters and procedure below isn't really advanced skill level.
Adapters utilized: #20-1929-1, Medium Duty Truck cone kit (see page 9 of
Hunter Accessory Brochure) was needed as we used half of this two piece kit to establish a backing plate area on the balancer's hub that would accommodate the Spyder's small flat wheel surface. Without this, it would likely be a crap shoot to properly mount it with any other adapter pieces. #192-51-2, Smallest low taper cone (see page 11 of
Hunter Accessory Brochure) was then used from the outside to center the wheel. With this "outside cone" set up it is also necessary to use the standard accessory #223-68-1, Pressure Ring with the wing nut (see page 6 of
Hunter Accessory Brochure).
Procedure used:
1) Quick Check balancer calibration
2) Perform Centering Check on first assembly to insure the adapter set up was accurate and repeatable
3) Used SmartWeight mode, standard on all late model GSP9700s & older ones that have been updated
4) Reduced SmartWeight balance tolerances with a simple ccw turn of the GSPs knob
5) Insured that all tire pressures were consistent throughout processes (we used 20psi)
6) If tire to wheel matching is needed, best to use the "Measure Bare Rim" mode on the 9700 as the outer flange of the Spyder wheel is not suitable for an accurate measurement
7) Used tape weights and two plane "Spoke" mode to locate outer plane weights behind wheel spokes-out of sight
The vibration sensitivity of the Spyder isn't known (many car companies publish their maximum road force variation limits) but we were able to get one down to three pounds and the other down to seven pounds and this solved my vibrations along with a good SmartWeight balance. Consequently, if you can get the
roadforce variation into single digits you're likely going to also experience success.
Bill here- I'm thinking of maybe buying the "low taper " cone & wheel spacer plate so I'VE GOT WHAT'S NEEDED for future balancing!
Bill
