Hi, Last week I got 2013 ZX14-R with 16k km ( The best I found ).
My weight is 78kg (172pound) , Do I need to do suspension adjustment? I never did that on my previous motorcycles.
Or, what should be there that indicates it needs suspension adjustments.

Thanks.

My understanding is the stock springs are for around 135 lb rider. There too is the weight of the rider, and the rider in gear, which can add 10-15 lbs.

Here's my take. A couple years ago I had Traxxion rebuild, re-spring, and re-valve my forks and shock. I spec'd 220 lbs rider weight, and potential track days but more of a street bike than a track bike. I was extremely surprised how much stiffer these are than OE springs. I'm actually well over that weight, and the ride is still extremely stiff. This hasn't really affected the ride quality, which is still fine. But the springs are just noticeably stiffer. I don't know how much they took into account my request details as far as wanting to maintain a decent street bike.

One thing I told them was I was scraping the lower fairings in turns. As well, my touch down sensors (the little balls on the bottom of the pegs) have been replaced a few times. They said that was because the springs were compressing too much in turns. Unfortunately, circumstances have changed in a way my riding habits don't really include situations in which I can "scrape the pegs" so I really haven't been able to test if indeed these heavier springs would prevent that squatting in turns Traxxion described. It made sense, but it wasn't something I was able to "feel" or perceive as a rider (the bike squatting).

So I would say, if you're a rider that likes to scrape the pegs, and you are seeing issues of touch down on lowers or excessive touchdown sensor wear then re-springing for your weight is probably something to consider. If you just sort of ride around and you lean it over but never "scrape the pegs" probably not anything to be concerned about.

As far as anything straight line, I don't really know much about drag racing and setting up a suspension if that's your thing. But there are tons of others on here to do a lot of straight line and might be able to advise for that scenario.

As far as Traxxion, I think they did a great job and would use their service again. I asked them based on whatever they saw how often I should have my forks/shocks serviced and they recommended every 25k miles, which is right about what the bike had on it at the time of that service.

Much appreciated dude, thanks a lot.

I did it like this on my Gen1.

http://zx14ninjaforum.com/messages.cfm?threadid=0FBAD329-D9A8-D755-1C455125FFBD4B86

I was noticing my Gen1 hopped off of bumps in the rear. I set the suspension and that took care of the problem. The front was always kind of floaty but I got it dialed in as best as I could. I just bought a Gen2 and we'll see how it does. I had a set of Ohlins on my Gen1 and it was more stable but that really didn't amount to more control at high speed for me. If you're an outstanding rider, maybe Ohlins is the way to go but just average, I think the stock suspension is going to work just fine for you. I'd still get the Ohlins for the bling factor and it is better (than the stock gen1 suspension) but it didn't make me faster.

* Last updated by: Rook on 6/2/2024 @ 11:44 AM *

That's really helpful thanks a lot.