04-09-17, 08:35 PM
It would be useful to know why you are asking the question.
For me the best option is a 25mm jack-up kit and having the yoke down the forks by ~15mm. I currently have a 50mm jack-up kit and having the front dropped at all adversely affects the handling. The 50mm kit and the forks at the OEM position gives roughly the same handling as the 25mm kit and a ~15mm drop. You could possibly infer from that that a 25mm Jack-up kit has a similar effect to having the forks dropped by ~15mm but I feel that's far too simplistic.
For me the best option is a 25mm jack-up kit and having the yoke down the forks by ~15mm. I currently have a 50mm jack-up kit and having the front dropped at all adversely affects the handling. The 50mm kit and the forks at the OEM position gives roughly the same handling as the 25mm kit and a ~15mm drop. You could possibly infer from that that a 25mm Jack-up kit has a similar effect to having the forks dropped by ~15mm but I feel that's far too simplistic.