I always used the recommended for oil or whatever was the equivalent, since fork oil weights aren’t exactly standardized.
However my 2000 Valkyrie has a very bad tendency do dive, even at pretty low speeds. It is abrupt and then settles once the suspension is compressed.
Reading forums people talk about changing springs with progressive ones, but to me this didn’t feel like a spring rate issue.
Found a guy on YouTube, Dave Moss Tuning and he talks quite a bit about fork oil weight and level and how it can be used to better tune the front suspension.
So I decided to give a heavier oil a try. Changed the fork oil over the weekend to Motul 15w. I put about 100 miles so far and I must say the improvement is definitely noticeable.
The dive is less pronounced and much better controlled. There is no abruptness to it anymore.
The suspension also feels more planted over rough surfaces.
I would say this was a cheap and easy improvement for sure.
However my 2000 Valkyrie has a very bad tendency do dive, even at pretty low speeds. It is abrupt and then settles once the suspension is compressed.
Reading forums people talk about changing springs with progressive ones, but to me this didn’t feel like a spring rate issue.
Found a guy on YouTube, Dave Moss Tuning and he talks quite a bit about fork oil weight and level and how it can be used to better tune the front suspension.
So I decided to give a heavier oil a try. Changed the fork oil over the weekend to Motul 15w. I put about 100 miles so far and I must say the improvement is definitely noticeable.
The dive is less pronounced and much better controlled. There is no abruptness to it anymore.
The suspension also feels more planted over rough surfaces.
I would say this was a cheap and easy improvement for sure.