R1 forks

[vivfazer]

Hi, I've got some r1 forks to put o my GEN 1 Fazer 1000
They are off 4xv model. Do I need to change the springs as I read the R1 springs are too soft for the fazer .
What are the best springs to use.
Cheers

[kebab19]

It may work 'ok', but if you've gone that far to improve the front-end, you may as well spend a little more to do it right.Your perfect spring rate depends on your weight+ the bike's weight.
Plenty of online charts out there to assist you: this bike with a full tank is about 235kg / 517lbs.  Just add your own weight and you'll be able to work the revised spring rate out.Or post details and someone will advise...

[vivfazer]

Many thanks.
The combined weight, the bike and my weight approx 747lbs
I will see if I can find an online chart.
Cheers.

[vivfazer]

I've check on an online chart.
standard road 0.95kgmm
Aggressive road 1.0kgmm
Does this sound ok.
Cheers. 

[unfazed]

Check out the Racetech site  https://www.racetech.com/

[kebab19]

1.0 springs sound like they would suit better if you're a fast road rider, carry a pillion or carry a lot of luggage around.  0.95 springs would offer you a comfier ride but might give excess 'dive' on the brakes & front-end going very light under acceleration.
You could maybe dial some of that out with the rebound / compression damping.  Do the forks have standard internals?

[vivfazer]

They are standard as far as i know, but I haven't stripped them yet.