Isle of Man TT 2015 racing was held on 10th June, 2015. RK support Team Mugen, and John McGuinness of Team Mugen made the course record (18:58:743) and won TT Zero Challenge (electric motorcycle class).
Team Mugen won the 1st and 2nd podiums 2 years in a row.
TT Zero Challenge Result
Team Mugen won the 1st and 2nd podiums 2 years in a row.
TT Zero Challenge Result
| Pos. | No. | Rider | Team | Lap time | Average sped（mph） | Chain |
|---|---|---|---|---|---|---|
| 1 | 1 | John McGuinness | Team Mugen | 18:58.743 | 119.279 | RK |
| 2 | 5 | Bruce Anstey | Team Mugen | 19:02.785 | 118.857 | RK |
| 3 | 3 | Lee Johnston | Victory Racing | 20:16.881 | 111.620 | other |
| 4 | 6 | Guy Martin | Victory Racing | 20:37.987 | 109.717 | other |
| 5 | 7 | Robert Wilson | Team Sarolea Racing | 21:15.256 | 106.510 | other |
