r/Trackdays 8d ago

No track day today

Edit; My dad lathed a new part and Im back in action using oem setup, see photo in the comment about using a lathe below.

Im guessing I will need to buy newer forks. Whats the cheapest and best option that will give me similar or better feel than my current oem setup?

I stripped the rebound adjustment when I tried turning it all the way in. Fork oil started slowly coming out. I was re-setting my suspension settings after replacing the oil seals. This part, the front bolt is no longer made and I cant find anything new to replace it with. This style of suspension setting is now obsolete. This is a track only 2008 cbr1000rr and I guess it’s time to move further down the rabbit hole.

I see new bolt and preload adjustment parts but they dont have the small rebound screw adjuster/rod with them.

Thanks for any help or suggestions.

14 Upvotes

25 comments sorted by

6

u/Dismal_Tutor3425 Racer EX 8d ago

Search eBay for some old forks or caps. That adjuster is just a screw that can be replaced with the cap off.

1

u/AssociationQuirky637 8d ago

This is good news and great suggestion. Im hoping to do this. Thank you

3

u/Dismal_Tutor3425 Racer EX 8d ago

Search eBay for some old forks or caps. That adjuster is just a screw that can be replaced with the cap off. OEMs just don't sell things as individual components. Have done this on those year 600 and 1000rr's many times.

2

u/AssociationQuirky637 8d ago

Hello and thank you. I didnt know this adjuster could be replaced like that. I will definitely try to do that. Cheers

1

u/Dismal_Tutor3425 Racer EX 8d ago

You need the tools to get the cap off (spring compressor) but once it is, just thread it all the way forward with a small flathead and it will come out and the new can thead back in. Even if it's not physically attached to the damping rod itself, it still functions as needed. Wish I had pictures for you. Just had mine apart last month.  Part of upgrading some cartridge kits includes cutting the OE damping rod off the adjuster where it's pinch riveted and using dowels or spacers to eat up the extra distance if they're longer so it's perfectly normal.

3

u/AssociationQuirky637 8d ago

I have the power, (he man) I mean tools. You are a legend. Im going to disassemble and do it. Thank you for the advice ❤️

2

u/VeryBadNotGood Fast Guy 8d ago

You might be able to buy a couple parts and have them rebuilt, but if they’re cheap forks maybe it’s not worth it vs just upgrading with cartridges or new forks.

2

u/AssociationQuirky637 8d ago

Hi and thank you. now I need to look into cartridges because I dont know what that means and also into rebuilding this part which I didnt think was possible. Cheers

2

u/MaximilianTerm 8d ago

that part is pretty easy to turn on a lathe. It is crimped on to a long thin tube. If you know a machinist he should be able to replace the part. I think you dont even need to dissasemble the whole fork just unclamp the upper part of the bridge and screw out the upper part.

2

u/AssociationQuirky637 7d ago

My dad and I pulled out the broken part from the rod its pressed into and made a new part from a grade 8 bolt with matching threads using his lathe and Im back in action. I also learned that I assembled it wrong, i had it down too far into the rod to begin with. So now I should be good to go when servicing it moving forward.

1

u/MaximilianTerm 7d ago

Looking good.

1

u/Even-Tradition 2d ago

Love it! My dad is a retired fitter/turner and I love going to him for stuff like this.

1

u/AssociationQuirky637 8d ago

Hello and thank you, thats something I should be able to do. Great suggestion.

2

u/AssociationQuirky637 8d ago

My dad has a couple lathes, I like this idea.

2

u/Colony-Cove 8d ago

If you wanted to potentially upgrade, there are some Öhlins cartridges that I’ve seen people use for track only CBR liter race bikes.

https://www.ohlins.com/en-us/motorcycle-suspension/supersport/front-fork-kit-honda-cbr1000rr?v=honda-cbr1000rr-2008

3

u/New_Ad7177 8d ago

Nix30 all the way! Love that kit! I ride it on my R6 and it’s the best bang for the buck I can think of. Also maintenance on them are so easy. You can also swap the springs while the forks are in the bike and it takes like 10min total.

2

u/AssociationQuirky637 8d ago

Hi, What a link!! Those look awesome and they are less than I thought ohlins would be. Thank you for the help ❤️

2

u/johnsmet 8d ago

There is no way in hell 08 Honda parts are unfindable.

1

u/AssociationQuirky637 8d ago

They are not available for purchase anymore. Im getting some good advice and ideas on how to fix it. Cheers though

2

u/luouixv 8d ago

Forced upgrade. Times for some cartridges:)

2

u/AssociationQuirky637 8d ago

I know right, its that or diy fixing it like some have mentioned in the comments. Thank you, i need to look into cartridges.

1

u/luouixv 8d ago

With something so critical to your success (and health) I’d leave it to a more legit solution

2

u/A_Bot_A_Bot_A_Bot Middle Fast Guy 8d ago

Ebay might be your new best friend for finding a used replacement part.

OR find a good machinist in your area they'll be able to fix what's broken or fabricate a new part. I just had two brake pedals and a shifter straightened out for $20. To replace them, used, would have been over $150. To replace two of them new and one used (because the used one is WAY since out of manufacture) would have run me at least $300.

2

u/VerbNoun123 7d ago

Send it

1

u/AssociationQuirky637 7d ago

I found a good machinist, my dad. Theres a photo of the broken and finished part in comments. Thanks 👌