I'm looking for the original spring lbs for an R chassis kit. specifically for a BEC, but I think they are the same for a CEC.

I'd like to try some softer springs, suspension feels pretty hard now, compared to some more dialled in chassis I have felt.

Im always confused that the car engine and bike engine seem to be the same specification I would have thought that the BEC would need around 50 lbs lighter springs due to the weight difference

i think theyre about 200lbs on the bec.
the cec ones are way too hard, you just end up bouncing over everything.

The Indy R with its inboad suspension has different length and size front springs to the standard Indy,I think I had 350lbs on the front of mine,but it was a couple of years ago now so not too sure,but it was fine on them, it might be best to give Danny a call at MK,ask him what he has used on there race cars,and get them to send you a pair,there only around £30/40 a pair.