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Old September 24th, 2019, 04:55 PM   #25
Triple Jim
Guy Who Enjoys Riding
 
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Name: Jim
Location: North Carolina
Join Date: Jul 2016

Motorcycle(s): Ninja 250

Posts: A lot.
MOTM - Oct '18, Aug '17, Aug '16
Quote:
Originally Posted by AbleOpus View Post
Now that I've read a bit more into it, it does seem like the right approach to replace the springs if I plan on keeping the bike for a long time. Trying to compensate the spring rate with heavy oil, in my case, will slow down the rebound and cause the forks to feel a bit sluggish.
Yes, heavy oil just increases damping. Adding oil reduces air space and effectively increases spring rate with an air-shock sort of result. You really can fine tune the front suspension by tweaking oil level.

But since you're not a light person, starting with stiffer springs would be the right thing to do. My 0.70kg/mm Sonic Springs (10S-070) were a bit under $100 for the pair, including shipping, a couple years ago.
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