Specifications for 80/100-21 51M X20 Soft
| Pneumatic Type | Motorcycle |
| Season | Summer tyre |
| Brand | BRIDGESTONE |
| Tyre width | 80 |
| Tyre section | 100 |
| Inch | 21 |
| Speed index | M |
| Weight index | 51 |
| Fuel efficiency | / |
| Wet grip | / |
| Sound bar | / |
| Exterior noise | 0 |
| Tyre Snow grip | No |
| Tyre Ice grip | No |
| Tyre type | / |
| Date of manufacture | DOT4822 |