Hi, has anyone experience of a 3.7L Roadster with existing factory fitted 5link suspension but then upgraded with the SSL Suspension progressive rear springs/ dampers to give a more compliant ride? Also, were the front SSL RS progressive springs/ dampers fitted? Thanks in anticipation, Happy Christmas to all, Ashley
Hi Ashley and another welcome to TM. Ironically there is a very recent thread
here covering the SSL suspension upgrade to 5 link Roadster. And yes you need to fit front and rear as I found out.
I would just add a little history though. According to Dan at SSL, MMC fitted quite high rate springs to the coil over dampers on their own 5 link rear suspension when it was first introduced to the Roadster around April 2018. This to limit roll but at the expense of an uncomfortable ride over small undulations and potholes. Read typical Norfolk minor roads in my case
SSL already had a dual spring rate solution in their RS kit for the front of Classics but developed a complimentary dual rate version for the Roadster rear with two springs in series around Spax adjustable dampers, likely based on experience with their own retro fit 5 link conversion. In this case a softer ride is provided for the first 25mm or so of suspension compression, thereafter as the much shorter spring becomes coil bound the effective spring rate increases to limit roll to an even greater degree than OE. The transition is seemless and I've never felt the conversion bottom out despite two up touring with luggage and full tank. Both these features were noticed within a mile of first installation particularly the positive of roll resistance, this being felt through the seat of your pants, sitting so close to rear axle. Hope this helps.
