20 watt c scooters,

GY6 Koso  Performance Roller  Weight set

 Specs: Roller
    Unit Price Part Name Shipping Cost Total Shopping Cart  Youtube video -Roller weight Upgrade: http://www.youtube.com/watch?v=Xii1YiJxHFk&feature=related
| 1 $20 GY6 Koso 50cc Roller Set  16 x 13mm  (5gram) $5 USA $25

| 1 $20 GY6 Koso 50cc Roller Set (6gram) $5 USA $25
  1 $20 GY6 Koso 50cc Roller Set (7gram) $5 USA $25

  1 $20 GY6 Koso 50cc Roller Set (8g) $5 USA $25
 

1

 $20 GY6 Koso 150cc Roller Set (9gram) 18 x 14mm $5 USA $25

1

 $20 GY6 Koso 150cc Roller Set (10gram) 18 x 14mm 5 USA $25

1

 $20 GY6 Koso 150cc Roller Set (11gram) 18 x 14mm 5 USA $25

Lighter Weights   7-9 grams:  More climbing power,  but loss of top end speed

Medium weights  10-12 grams:  Combo of both worlds

Hevier Weights  13-15 grams:  More top speed,  but serious loss of low end power,  or hill climbing ability. 

We only sell to USA & Puerto Rico Street address.  We no longer take international order. Shipping cost is for the lower 48 states. Alaska, Hawaii,  will be more.