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Discussion Starter #1
Hi guys, earlier this year I bought a 2017 CBR500R. It's my first street bike, just had dirt bikes before that. The bike was a repo with 7k miles on it. I've taken almost the entire bike apart at this point to go through it and resolve little issues where the previous owner that had no freaking clue what he was doing had messed up stuff. Me and Babbitts Online have become good buddies... anyway, both the front forks were set to different preloads. I was able to use calipers to get them both set to the same adjustment and then actually set them to the stiffness I wanted. My question is how to do something similar with the rear one. The manual says the index mark should line up with the left side of the lower shock mounting bolt. However, my index mark is lined up with the right side of the mounting bolt. I was hoping to increase the stiffness of the rear (it seems very sloppy to me and is easy to bottom out by just sortof bouncing up and down in the seat a bit). Those of you that have adjusted your rear suspension, do you know what position it may be in?

Also, I weigh about 225lb.
 

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Hi,

You should look into a replacement shock. The stock shock wasn’t made for guys our size. I replaced mine with a GSXR750 shock and it helped tremendously. The GSXR shocks can be bought off eBay for $35-50 and are well worth it. Give the topic a quick sear CB and you’ll find a few write ups on it here.

John
 

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Interesting. Thanks for the reply, I did some reading after searching for GSXR swap info and that definitely sounds like the way to go. I swapped the rear suspension on my old '82 XR200 for one out of a newer bike to lift the rear end, so I feel pretty confident I can do it on this guy as well, hadn't really thought about just changing to a different shock though :p

Thanks a lot! Now that I've got the front end sorted the bike feels a ton better, but now the rear end being saggy really stands out haha.
 

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Thanks, I saw that in another thread. I don't have ABS on mine (I don't even like ABS on a car much less a bike haha) so that shouldn't be an issue for me.
 

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Discussion Starter #7
I got a GSXR 750 rear shock on the way. Should be here by this weekend. After my riding yesterday my front tire is slick as a baby's bottom so I guess I'll take the bike down for a bit to swap that tire and do the suspension at the same time.
 

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Discussion Starter #8
I replaced that front tire and then got busy with other projects and neglected the suspension for a bit. Over Thanksgiving I got the GSXR-750 shock installed. Trimming the battery tray area was a bit of a pain but other than that it was a pretty simple swap. The difference in the bike is HUGE afterwards. I can jump up and down on the pegs without it bottoming out. Before I could bottom it out with very little effort. My back tire is wore clap out (I did get the donut in the attachment in before it corded at least :p)so I didn't get to do much riding afterwards but I can already tell it's going to be a ton better. Thanks for the suggestion, JCarrithers!
 

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Discussion Starter #11
👍🏻

Now you’ll want to upgrade the front forks. I used the Traxxion Dynamics kit in mine. Great kit for the $$.

Dang, $400 probably isn't bad for what it is, but on a $2400 bike it's a big chunk lol. Guess I'll run it for a while with the new rear shock and see how I like it. I'm getting the rear tire changed out today so it'll have the right size (PO had put a 150/50 rear on it so I was constantly running out of lean angle). I'll have Michellin P5s front and rear, correct size for the bike, and a good rear suspension. Hopefully that'll make a lot of difference. As the bike has been I've been leaning more towards the "put the money I'd spend on upgrades towards a bigger bike" side of things. I really like the 500 but it definitely has limits haha.
 
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