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| Aflevering | Eerste uitzending |
|---|---|
| S04E01 - Junior Vs. Senior 1 | 18/01/2007 |
| S04E02 - Junior Vs. Senior 2 | 25/01/2007 |
| S04E03 - Go Daddy 1 | 01/02/2007 |
| S04E04 - Go Daddy 2 | 08/02/2007 |
| S04E05 - Flowjet Bike 1 | 15/02/2007 |
| S04E06 - Flowjet Bike 2 | 22/02/2007 |
| S04E07 - HP Bike 1 | 29/03/2007 |
| S04E08 - HP Bike 2 | 05/04/2007 |
| S04E09 - Peavey Bike 1 | 12/04/2007 |
| S04E10 - Peavey Bike 2 | 19/04/2007 |
| S04E11 - Australia 1 | 31/05/2007 |
| S04E12 - Australia 2 | 07/06/2007 |
| S04E13 - Australia 3 | 14/06/2007 |
| S04E14 - Intel 1 | 12/07/2007 |
| S04E15 - Intel 2 | 19/07/2007 |
| S04E16 - Byron Nelson 1 | 26/07/2007 |
| S04E17 - Byron Nelson 2 | 02/08/2007 |
| S04E18 - Silver State Choppers' Chopper 1 | 30/08/2007 |
| S04E19 - Silver State Choppers' Chopper 2 | 06/09/2007 |
| S04E20 - Iowa Farm Bureau Bike 1 | 11/10/2007 |
| S04E21 - Iowa Farm Bureau Bike 2 | 18/10/2007 |