Prima Roller Weight Tuning Kit (20x12)
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Included in this tuning kit are 12 sets of 3 rollers, for a total of 36 roller weights. These sets range from 7g to 18g. Combining 2 sets of rollers allows you to tune with a large variance of weights sets!
For example:
3x 10g & 3x 11g rollers (alternating weights in variator) gives you 10.5g roller set.
DANGER: weights must be put in a 120 deg pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!!
TIPS: Lighter roller weights will increase RPM for any given road speed.
Heavier weights will lower RPM for any given road speed.
All of this, of course, must be tailored to each person's engine set-up & personal driving style!!
Please refer to our handy chart for more info.
Brand: Prima
Fits: Yamaha Zuma 125, Vino 125
Shipping information
Orders are prepared as quickly as possible. Delivery times and shipping costs are calculated at checkout based on the destination and items ordered.
Returns & warranty
Please verify fitment and part number before ordering. Contact Thrifty Scooters promptly if an item arrives damaged or incorrect.