E1 - 100 cc to 20 0cc 2 - Stroke & 150 cc to 250cc 4 - Stroke / E2 - 220 cc to 250cc 2 - Stroke & 275cc to 450cc 4 - Stroke / E3 - 290cc to 500cc 2 - Stroke & 475cc to 650cc 4 - Stroke / EJ - All powers (Rider must be under 18 years or under at 1 January 2018)

	WR 450 Test One
	WR 450 Test One
	WR450 Test Two
	WR 450 Test Three
	WR450 Test Four
	WR 450 Test Five
	WR450 Test Six
	WR 450 Test Seven
	WR450 Test Eight