89 1000 exup

Rob1000exup5555 · Post by **Rob1000exup5555** » Fri Jun 04, 2021 7:58 am

Did this year come with linear fork springs as standard or progressive ?

Im having my fork seals done and was going to change the springs at the same time ive had a look at the spring and it has a linear spring already.

Teego · Post by **Teego** » Fri Jun 04, 2021 11:23 pm

AFAIK original springs were linear and good enough. You can adjust preload, a bit, for sag. You can adjust damping by using thicker or thinner oil.
I don't think that "progressive" springs offer any advantage.

YAMAEXUP · Post by **YAMAEXUP** » Sat Jun 05, 2021 11:15 am

I tried some progressive fork springs from 'Progressive Suspension' in the usa as i'd read that they were better. MASSIVE mistake.....

I then bought some Ohlins fork springs to complement the Ohlins shock & BINGO

they worked as they said they would on the box.

No doubt K-Tech would be able to do something similar as Ohlins stuff has now got a tad expensive

YAMAEXUP · Post by **YAMAEXUP** » Sat Jun 05, 2021 11:20 am

And if you've not already modified the rear suspension, get some 160mm bc dogbones from the Stig. It moves the CoG slightly forward & raises the rear by about 25mm, which saves dropping the forks through the yokes & losing ground clearance.

I tried some 155mm dogbones but the chain was dragging on the top of the swing arm & chewing through the plastic chain guide. I even tried some 157mm but the 160s were the better fitment imho

Rob1000exup5555 · Post by **Rob1000exup5555** » Sat Jun 05, 2021 6:50 pm

Thanks alot guys i will look into the dog bones and leave the springs alone and ask for a thicker grade of oil.

Teego · Post by **Teego** » Sun Jun 06, 2021 12:34 am

I put 155 bones on my Foxeye. That sharpened things up.
Then I went -1 +2 on the sprockets.
This shortened the wheelbase a tad which complemented the bones.

The other advantage of the sprocket change was more drive off the line, closer ratios so it's always in the sweet spot, you can find the red line in top.

For not much money the bike was transformed.