Product Details
Let’s not forget the kids and the mini bikes. For the next generation of dirt riders, the M40 is the off-road motorcycle tire of choice, available in 10-inch sizes for nearly all popular mini bikes.
The Bridgestone M40 offers traction for all conditions. Extra wide spacing between tread blocks, together with rounded shape, means a self cleaning tire even in wet, sticky mud. Wraparound knob pattern provides climbing traction out of ruts.
The extra-wide tread blocks and rounded profile promote self-cleaning, helps reduce the chance of dirt getting trapped between the blocks, and offer maximum bite into the ground.
The knobs are large and wrap around to the edges of the tire, just like full-size MX tires, giving your little rider climbing traction to help get themselves out of ruts. Lastly, the 4-ply construction means the M40 tires are durable.
A: Width (120/80-19)
Width of the tire, typically in millimeters, from sidewall across the tread to the opposite sidewall.
B: Aspect Ratio (120/80-19)
The height of the cross-sectional profile expressed as a % of the width of the tire
C: Rim Size (120/80-19)
The third number is the diameter of the wheel in inches.
Example: 120/80-19 or A/B-C [ The width(A) of the tire is 120mm. The sidewall height(B) is 80% of 120 or 96mm. And it fits a 19in wheel(C) ]
Front
| Metric | Alpha | Inch |
|---|---|---|
| 60/100 | 90/80 | 2.50/2.75 |
| 70/100 | 90/90 | 2.75/3.00 |
| 80/90 | MH | 2.50/2.75 |
| 80/100 | 100/80 | 3.00/3.25 |
| 90/90 | MJ90 | 2.75/3.00 |
| 100/90 | MM90 | 3.25/3.50 |
| 110/90 | MN90 | 3.75/4.00 |
| 120/80 | N/A | 4.25/4.50 |
| 120/90 | MR90 | 4.25/4.50 |
| 130/90 | MT90 | 5.00/5.10 |
Rear
| Metric | Alpha | Inch |
|---|---|---|
| 80/100 | 80/90 | 2.50/3.60 |
| 90/100 | 110/90 | 3.60/4.10 |
| 100/100 | 120/80 | 4.00/4.10 |
| 110/90 | MP85 | 4.50/4.75 |
| 110/100 | 130/80 | 4.00/4.50 |
| 120/90 | MR90 | 4.50/4.75 |
| 120/100 | 140/80 | 5.00/5.10 |
| 130/80 | N/A | 5.00/5.10 |
| 130/90 | MT90 | 5.00/5.10 |
| 140/80 | N/A | 5.50/6.00 |
| 140/90 | MU90 | 5.50/6.00 |
| 150/80 | MV85 | 6.00/6.25 |
| 150/90 | MV85 | 6.00/6.25 |
