These are premium internal tire ceramic balancing beads.
Tire Chart
Regular Tires (Metric) |
Front tires (mm) |
Rear tires (mm) |
Size |
Amount |
Size |
Amount |
80 - 120 |
1 oz |
130 - 240 |
2 oz |
130 |
2 oz |
250 - 360 |
3 oz |
|
|
Car Tires |
3 oz |
Off Road / Dual Purpose Tires |
Front tires (mm) |
Rear tires (mm) |
80 - 120 |
2 oz |
130 - 240 |
3 oz |
For each rim lock add 1 oz. If 2 rim locks are opposite each other, no additional amount is required as they cancel each other out. |
|
Metric / Alphanumeric* Conversion Chart |
Front tires |
Rear tires |
Metric |
Alphanumeric |
Amount |
Metric |
Alphanumeric |
Amount |
80/90 |
MH90 |
1 oz |
110/90 |
MN90 |
1 oz |
90/90 |
MJ90 |
1 oz |
120/80 |
MP85 |
1 oz |
100/90 |
MM90 |
1 oz |
120/90 |
MP85 |
1 oz |
110/90 |
MN90 |
1 oz |
130/90 |
MT90 |
2 oz |
120/90 |
MR90 |
1 oz |
140/90 |
MU90 |
2 oz |
130/90 |
MT90 |
2 oz |
150/80 |
MV85 |
2 oz |
|
|
|
150/90 |
MV85 |
2 oz |
|
(*) - The alpha numeric system is the older method for tire sizing (see right chart above). Back then, tires didn't get much bigger than MV85, which corresponds to a 150mm width. Newer tires larger than 150mm will only carry the metric sizing designation.
How they work?
- The beads when added to the inside of the tire will distribute themselves throughout the tire during motion to counter act the heavy spots.
Tire compatibility
Good rule of thumb is to figure 1 ounce per 10-12 lbs of tire weight.