The GT503 was designed specifically for the aggressive look and high performance of H-D’s new motorcycle. The GT503 combines construction, compound, and tread design to provide the ultimate in tire performance for the new H-D Sportster S.

The GT503 was designed specifically for the aggressive look and high performance of H-D’s new motorcycle. The GT503 combines construction, compound, and tread design to provide the ultimate in tire performance for the new H-D Sportster S.
Meets the rigid demands of the bike manufacturer.
Designed to complement a range of Harley-Davidson, Indian, and other V-twin models.
Dunlop is the original brand of tire certified to say Harley-Davidson right on the sidewall.
| Tire Name | Size | Position | Load/Speed Index | Sidewall | Part Number | Applicable Rims Recommended Rim | Overall Diameter | Overall Width | Full Tread Depth | Maximum Load @ PSI |
| GT503 | 160/70R17 | FRONT | 73V | BW | 45244956 | 4.505.00 | 25.67 | 6.22 | 5/32 | 805 @ 42 |
| GT503 | 180/70R16 | REAR | 77V | BW | 45244903 | 5.005.50 | 25.91 | 7.24 | 9/32 | 908 @ 42 |
| Tire Name | Position | Size | Load/Speed Index | Sidewall | Part Number | Applicable Rims Recommended Rim | Overall Diameter | Overall Width | Full Tread Depth | Maximum Load @ PSI |
|---|---|---|---|---|---|---|---|---|---|---|
| GT503 | FRONT | 160/70R17 | 73V | BW | 45244956 | 4.505.00 | 25.67 | 6.22 | 5/32 | 805 @ 42 |
| GT503 | REAR | 180/70R16 | 77V | BW | 45244903 | 5.005.50 | 25.91 | 7.24 | 9/32 | 908 @ 42 |