Tested 1 times by independent publications, the Kingboss G866 averages a finish of 8th.
The BEST Performance Summer Tires for 2026 Tested! P8 of 8
Not much to say about the King Boss G866. If you're an enthusiast, do not fit this tire. Come to think of it, if you're a regular person, do not fit it either. It's just bad in the wet.
Where the Kingboss G866 finished in each measured discipline, across every test that measured it against at least two other tires. Field beaten is the share of the other tires it outranked in that measurement.
| Discipline | Tests | Avg finish | Field beaten | Firsts |
|---|---|---|---|---|
| Dry | ||||
| Dry Braking | 1 | P8 of 8 | 0% | - |
| Dry Handling | 1 | P8 of 8 | 0% | - |
| Subj. Dry Handling | 1 | P8 of 8 | 0% | - |
| Wet | ||||
| Wet Braking | 1 | P8 of 8 | 0% | - |
| Wet Handling | 1 | P8 of 8 | 0% | - |
| Subj. Wet Handling | 1 | P8 of 8 | 0% | - |
| Straight Aqua | 1 | P8 of 8 | 0% | - |
| Comfort | ||||
| Subj. Comfort | 1 | P2 of 8 | 86% | - |
| Noise | 1 | P6 of 8 | 29% | - |
| Value | ||||
| Rolling Resistance | 1 | P1 of 8 | 100% | 1 |
Strong = top two of the field in that measurement. Weak = bottom two.
Not much to say about the King Boss G866. If you're an enthusiast, do not fit this tire. Come to think of it, if you're a regular person, do not fit it either. It's just bad in the wet.
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