125-200cc 2014 CR125 what are the OEM spring rates?

I believe they are .42 & 5.0, but can some someone confirm please?

Race tech calculator recommends .43 & 5.8 for me, so if the OEM springs are .42 I'm going to call it 'close enough' and just worry about the shock spring.

I believe those are the correct numbers

I went to a 5.6 on my '12 and it is a bit soft for my bloated ass. I didn't change the forks and they are close. If I was faster, I would need a step more on both ends.

Thanks for the info!
I have some .44 or.46 fork springs from my old yamaha that I'm 99% sure will fit. Those with a 5.8 rear should keep me riding higher in the stroke.

The springs in the Husky KYB TC are shorter than Yamaha.

I have a set of .44 Husky springs I'd trade or sell. Also 5.4 rear spring. I use a 4.9 YZ Ti shock spring on the 300 which weighs half as much as the stock spring.
RaceTech calculated .44/5.2 for me, but I like .40/5.0, so I think they err on the stiff side.
The only way to know for sure is to adjust static sag correctly, then measure rider sag. Replace springs and adjust preload as necessary

For me, they recommended .38/5.4, which I have and I'm really happy with. I prefer my suspension really soft, but the 5.0 rear was way too soft for me

Everybody likes their setup a little different

Yeah, strange how different the recommendations are. I weigh 155 lbs, so @ 175 with gear, and 5.0 rear spring on the 165 gives perfect sags. I think spring preload is only @ 6mm, shock is stock AFAIK.
Same on the fork for me on both bikes, .40 gives correct sag numbers, 300 is plush but 165 is harsh in slow and rough stuff.

I GOTTA TI YAMAHA SPRING ON THE OLE DX AREN'T HUSKY KYBs 04 AND EARLIER YAMAHA FORKS WILL 05 N UP SSS GUT GO IN THEM??

I'm about 10 lbs lighter, but also spec'd woods riding, and 45+, which I think skews their recommendations lighter

Not sure about swapping the internals, would like to know though.

Even more strange then that you like the 5.4 spring

I ran the 5.0 for a year, but couldn't get the right sag without cranking it down too far, throwing off the static sag. That and the bike just didn't feel balanced front to back.

I've read a few times that the Husky KYB, and the Yamaha forks are the same internally (damping). The RT springs had spacers for preload on the Yamaha, but they were so thin, I can't imagine they would make a noticeable difference.

The 2 stroke and the 4 stroke Yamaha have different length fork springs so one of them might work also the 250 and 300 Husky might have a spring stock you can use if you're going up in weight.

I used fork springs out of a '12 YZ125 and they were just a hair shorter than the husky springs. So little difference that I blamed it on the yz not being on a stand most of its life

I just measured those spacers. 3.5mm per spring. Insignificant on a spring about a half meter long

That depends on what spring pre-load you want to run. A change from +2.5mm to -1mm would make a big difference in how it handles. A spacer would be a simple fix as long as it wasn't too long of a spring.

My riding weight with full pack and saw is ~245#'s. Damn that's a lot.

Not on a spring that's a half meter long

The shorter length helped get my bike sag in a better spot

its not enough but its better than the OE 4.8 need about a 6.8