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Got a reply from TracTive on spring rates.
Stock M3
Front = 160 lb/in (28 N/mm)
Rear = 550 lb/in (96.3 N/mm)
Ohlins R/T
Front = 343 lb/in (60 N/mm)
Rear = 685 lb/in (120 N/mm)
TracTive Touring Line
Front = 137 lb/in initial, 271 lb/in secondary (24 N/mm & 47.5 N/mm)
Rear = 480 lb/in (84 N/mm)
TracTive spring rates seem on the low side. I asked the engineer about this and he said that the DDA valve will firm up to to provide additional spring rate. Let's see if it does what it says.
Last edited by Redd; 03-20-2023 at 05:34 PM..
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