Suntour Suspension Seatpost SP17-NCX Soft Spring

[SteveGray]

I have just bought this seatpost and it's supplied with the medium spring, for rider's weight 70-95kg.

My weight is 65kg and I wish to use a soft spring, for rider's weight up to 75kg.

After much on line searching, I have failed to find this soft spring for the 30.9 mm suspension seatpost. They are available for the 27.2 mm version.

I wonder if anybody has one to sell or can comment on the possibility of using the 27.2 mm soft spring instead, with any modification or not ?

Of course this is only necessary, because of the poor condition of local shared use paths with tarmac lifted by numerous shallow tree roots.

Meanwhile the road building continues and fuel duty reduced. Don't get me started.

Steve Gray