MOTON Linear Racing Springs

Premium 170-Series Replacement Springs (61mm ID)

Engineered for high-performance motorsport applications, these 170mm length linear springs offer the precision and predictable handling characteristics required for Moton and AST coilover systems. Manufactured from high-tensile 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-170-40-61	170	40	61	53	4680	117
AST-170-50-61	170	50	61	55	5750	115
AST-170-60-61	170	60	61	57	6780	113
AST-170-65-61	170	65	61	55	7475	115
AST-170-70-61	170	70	61	59	7770	111
AST-170-80-61	170	80	61	63	8560	107
AST-170-90-61	170	90	61	64	9540	106
AST-170-100-61	170	100	61	64	10600	106
AST-170-110-61	170	110	61	69	11110	101
AST-170-120-61	170	120	61	70	12000	100
AST-170-130-61	170	130	61	70	13000	100
AST-170-140-61	170	140	61	72	13720	98

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MOTON Linear Racing Springs 170 Series (170mm x 61mm ID)