Suspension upgrade kit Suzuki DL 1000 V-Strom '14-'19 Hyperpro Streetbox

I'm sorry I can't answer you but Hyperpro does not publish data such as the hardness or length of the springs made; I can tell you, however, that these are progressive anti-sinking springs that start with a hardness load similar to the original that increases as the load applied on the bike increases. It is like having 10 springs with 10 different loads all concentrated in the same spring, the comfort of these springs is guaranteed both in case of driver only and with passenger and luggage, so it always responds perfectly to the different weights placed on the bike, road surfaces, type of riding and braking, always much better anyway than the originals. Each spring is also developed and tested specifically for each motorcycle model shown in the compatibility table.