MOTON Linear Racing Springs

Premium 120-Series Replacement Springs (61mm ID)

Engineered for professional motorsport use, these 120mm length linear racing springs provide the high-tensile strength and predictable handling required for AST and Moton coilover systems. Manufactured from elite chrome silicone steel to ensure maximum travel with minimum weight.

Lo Open Length (mm)

R Spring Rate (N/mm)

Di Inside Diameter (mm)

Sn Block Length (mm)

Fn Force at Block (N)

St Usable Stroke (mm)

Part Number	Lo	R	Di	Sn	Fn	St
AST-120-50-61	120	50	61	43	3850	77
AST-120-60-61	120	60	61	46	4440	74
AST-120-70-61	120	70	61	50	4900	70
AST-120-80-61	120	80	61	49	5680	71
AST-120-90-61	120	90	61	49	6390	71
AST-120-100-61	120	100	61	54	6600	66
AST-120-110-61	120	110	61	55	7150	65
AST-120-120-61	120	120	61	56	7680	64
AST-120-130-61	120	130	61	57	8190	63
AST-120-140-61	120	140	61	58	8680	62
AST-120-150-61	120	150	61	59	9150	61
AST-120-160-61	120	160	61	58	9920	62
AST-120-170-61	120	170	61	63	9690	57
AST-120-180-61	120	180	61	65	9900	55
AST-120-190-61	120	190	61	63	10830	57
AST-120-200-61	120	200	61	65	11000	55
AST-120-220-61	120	220	61	64	12320	56
AST-120-240-61	120	240	61	65	13200	55
AST-120-260-61	120	260	61	69	13260	51
AST-120-280-61	120	280	61	74	12880	46
AST-120-300-61	120	300	61	71	14700	49
AST-120-320-61	120	320	61	76	14080	44
AST-120-340-61	120	340	61	73	15980	47
AST-120-360-61	120	360	61	78	15120	42
AST-120-380-61	120	380	61	75	17100	45
AST-120-400-61	120	400	61	73	18800	47
AST-120-420-61	120	420	61	78	17640	42
AST-120-440-61	120	440	61	75	19800	45

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MOTON Linear Racing Springs 120 Series (120mm x 61mm ID)