Product Details
Nomen est omen – because JACK the GRIPPER delivers a bloody lot of grip. Improved lateral stability, a unique No-Bounce rubber compound, and the V-shaped knob layout make it stand out.
The X-Grip Jack the Gripper Rear Tire is ready for anything, from tight race tracks to steep enduro climbs. It delivers solid traction whether you're churning through loose dirt or blasting over rocky terrain. With multiple hardness options, you can dial in the perfect setup for any riding conditions.
The 120/90-18, with a knob height of 13 mm, is available in three different hardness/rubber compounds, all compliant with F.I.M. regulations.
Hardness/Rubber compounds
HARD, MEDIUM, SOFT
The 140/80-18 is available in four different hardness/rubber compounds, all compliant with F.I.M. regulations.
Hardness/Rubber compounds
HARD, MEDIUM+, MEDIUM, SOFT
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 |
