Variator Weight Tuning
The gearing needs some work on my reflex
Take off is clunky and not low enough, also my gearing is too high under heavy load at top speed. I have a large hill that I should be going faster on, but my tach is 500 rpm below redline.
Variator weights are changed to do this. Bringing this weight down will improve my acceleration. Increasing the weights will improve economy.
The weights are 23x18mm.
Understanding
The Honda Reflex uses a two stage variator weight system. Initially all the weights work together to decrease the gear ratio. Then, at around 5500 rpm, the lighter (black) weights are stopped and only the heavier (white/blue) weights continue to change the ratio.
- By making the white/blue weights lighter, the entire range is changed.
- By making the black weights lighter, only the initial range is changed.
The best way to understand this is to think of the weights in two sections.
- Stock - 156g/93g
- PVD - 141g/78g
Tool Needed
Honda P/N #3821697-001 DRIVE PULLEY HOLDER $44.65
Weights
I ordered these Honda rollers for stock:
- 2005 Honda NSS250S REFLEX, ROLLER SET, WEIGHT, BB P/N #932915-001 $11.64
- Honda #22123-KPB-000
- 3X 31 grams, White/Blue color, 0.340" ID, 23mm OD, 18mm WD
- 3X 21 grams, Black color, 0.522" ID, 23mm OD, 18mm WD
- 2005 Honda PS250 BIG RUCKUS, ROLLER SET, WEIGHT, BB P/N #3850295-001 $7.91
- Honda #22123-KFG-J00
- 6X 26 grams, White/Black color, 0.440" ID, 23mm OD, 18mm WD
- 2005 Honda CN250 HELIX, ROLLER SET, WEIGHT, BB P/N #65179-001 $18.85
- Honda #22123-KS4-306
- 6X 23.2 grams, Pink color, 0.500" ID, 24mm OD, 18mm WD
Aftermarket Options
Dr. Pulley - States that 26g weights are stock in the Forza. Part No. : SR2318 for 23X18mm weights.
First Try
I changed out the three stock White/Blue weights for 3 of the Big Ruckus weights. This brings the total weight down from 156 grams to 141 grams, a 23.5 gram average.
