[gman]

For you guy's that might be intrested in the stock XR100 shock dimensions-give or take a mm or two over all length and mounting (I only have 6" calibers)

The problem areas that I'v found for finding a suitable replacement shock;



-Short Over all Length



-Lower fork mounting- is in a confined area tight tolerance with the linkage pull arms



-Lower shock diameter-running a conventional style mono shock (shock spring in the lower half) is restricted in overall size-interference with swing arm (rear of the SA shock opening) and swing arm pivot bolt- using stock the mounting location



-Spring rate for the lil XR's linkage ratio- the adult BBR 975lbs spring = about 17.5 kg!

 

[firepower354]

Yeah, Works calls theirs 10.38". Shame there isn't a different arm, even linkless, that allows a longer and softer shock. Drat those uni-boingers. Moving the upper mount around would likely annoy the airbox. Maybe I'll pick up a thrashed 80 over the winter to hack on. Nothing here with a single shock, except my JT1.

 

[T Bolt USA]

Yes, depending on the year XR/CRF 80/100 you have...



The XR 80/100- 01' and later swing arm and linkages- mounted up on pre 01' XR's will raise the rear approximately 1"- the opposite will effectively lower the rear using a pre 01 linkage and swing arm on a 01' and newer bike.

So just to be clear ALL years 1985 up XR/CRF100 will have the same SIZE shock ?



Will a longer shock help at all ?

 

[gman]

So just to be clear ALL years 1985 up XR/CRF100 will have the same SIZE shock ?



Will a longer shock help at all ?

Yes- (to the best of my knowledge) all the pro link XR/CRF shocks are the same.



A longer shock will not bolt on- because of linkage interference- the Stock XR is at the ride height limit (in stock form). Hence, Tk's link and the Aussie lift. In 2001 Honda re-engineered the linkage/swing are for the new stance (ride hieght)





With a little fabrication any thing is possible. I built a XR100 with a KX 65 swing arm, linkage and shock.



Most XR hot rodders won't head down the DIY road- a inexpensive bolt in option is defiantly desirable

 

[Jthomas7]

Glad this threads still alive. Sorry I didn't respond Tbolt as I did not have the specs. Looks like GMAN fixed us up there.



Picked up an 01 XR100 today that honestly looked like it had been ridden 30 minutes in 01 than sat outside ever since. The dry rotted tires still had the tits on them. Pistons locked up in the Cylinder so I will get it running with a TB big bore kit. Considering putting a CR front end on this thing but unless we come up with a shock I will probably just do springs front and rear for now.

 

[theraymondguy]

Even with the aussie lift or TK setup, the CR forks will have the bike looking choppered out.



IMHO best bang for the buck is the Aussie lift or TK bits with BBR rear shock, 1 BBR shock in the XR fork. Actual fork oil vs. ATF will give you some dampening as well. The TB BBK is long awaited, however GMan brought it to our attention on TT that Yoshimura has their 115cc kit on sale for just $270 (that's 11.5:1 compression y'all) can easily achieve over 12HP with exhaust, carb and cam. That's double the factory HP for those not in the know. And no, it's not cheap HP either. Probably more like $650-700 all in.

 

[Jthomas7]

Mike at TB says the kits are in. Just trying to figure out the pricing.

 

[firepower354]

Picked up an 01 XR100 today that honestly looked like it had been ridden 30 minutes in 01 than sat outside ever since. The dry rotted tires still had the tits on them. Pistons locked up in the Cylinder so I will get it running with a TB big bore kit. Considering putting a CR front end on this thing but unless we come up with a shock I will probably just do springs front and rear for now.

Part that ratty roller on the 'Bay and slide the motor in a Turtle'd 75

 

[Jthomas7]

I have 4 "Racer" xr75's. I'm wanting a "race" xr100 for our race series.

 

[gman]

Even with the aussie lift or TK setup, the CR forks will have the bike looking choppered out.



IMHO best bang for the buck is the Aussie lift with BBR rear shock, 1 BBR shock in the XR fork. Actual fork oil vs. ATF will give you some dampening as well. The TB BBK is long awaited, however GMan brought it to our attention on TT that Yoshimura has their 115cc kit on sale for just $270 (that's 11.5:1 compression y'all) can easily achieve over 12HP with exhaust, carb and cam. That's double the factory HP for those not in the know. And no, it's not cheap HP either. Probably more like $650-700 all in.

Somebody's got to jump on that Yosh kit! Ya'll never see that quality BBK for the 100 that price. Forged piston, Nickacil cylinder, metal gaskets, (its actually) 12.3:1 CR- and if ya ever decided to splurge on the Yosh BV Roller head- their piston will slide right in.

https://www.yoshimura-rd.com/pc-3892-97-115cc-bore-up-kit-crfxrnsf100.aspx





BBR Shock? Pass that over here :smokin: mang lol

 

[theraymondguy]

Somebody's got to jump on that Yosh kit! Ya'll never see that quality BBK for the 100 that price. Forged piston, Nickacil cylinder, metal gaskets, (its actually) 12.3:1 CR- and if ya ever decided to splurge on the Yosh BV Roller head- their piston will slide right in.

https://www.yoshimura-rd.com/pc-3892-97-115cc-bore-up-kit-crfxrnsf100.aspx





BBR Shock? Pass that over here :smokin: mang lol

Sorry 'bout that. That's BBR Spring folks. And no, it's 11.5:1 compression as per Yosh's web site.



Yoshimura product site : Ape100/Ape100 Type-D/NSF100/XR100Motard - 115cc BORE UP KIT

:werd:

 

[miniguy]

Despite the parade-pissers and self-promoters, I think it's a great idea, JT!

The XR/CRF 80/100 is still an immensely popular bike, outside the "pit bike" community.

I still prefer a PAIR of Boge's on a DG arm, but still... lol



You'd still want one of these, too, to raise the ride height without bungling the geometry:

Terry a great idea maybe but when pit bikes were big it still wasnt enough for companies to invest in a shock for the bike in question.

Everyone wants something for a decent price I understand and get that. My reply is very accurate even if its not the answer he wanted to hear when it comes to this bike.

Being a company that deals in pit bike hop ups wouldnt this be your time to shine and make a shock to fit this market? The market was left to the Elka and Works guys for a reason. There just is not a market for it to carry the investment.

We always hope there is performance goodies made for everything we buy when it comes to motorcycles. In the real world thats not always possible so you either have to pay top dollar to have it made or make it yourself.

 

[firepower354]

No offense intended



Regardless of the state of the "pit bike" business, the upright citizens that are steadfastedly rejected by the "real"(?) pit bike community are thriving in the wild. I agree, they won't sell a million units, but if offered in the sub-$200 range, it should be a marketable item. I am working on it actually despite not being a fan of the Pro-sink rear-ended XR's. The long run and overall popularity warrant a cheap shock and the amount of people inquiring about them here and other places say it's needed. I'll pick up a beater for a few mods, this winter. I already have a few items in trial use, like a head repair/needle bearing conversion cam, bolt-on big bore for the 80, and so on. Getting a Chinese knockoff of the Works would require a sample to be purchased, and I have reservations aboot the ability to dampen against that high leverage ratio.



The hard-core guys will buy a Works any way, or do a CR swap.

The purists will buy a pair at a time



Kind Regards

The_GDFP

 

[T Bolt USA]

For you guy's that might be intrested in the stock XR100 shock dimensions-give or take a mm or two over all length and mounting (I only have 6" calibers)

The problem areas that I'v found for finding a suitable replacement shock;



-Short Over all Length



-Lower fork mounting- is in a confined area tight tolerance with the linkage pull arms



-Lower shock diameter-running a conventional style mono shock (shock spring in the lower half) is restricted in overall size-interference with swing arm (rear of the SA shock opening) and swing arm pivot bolt- using stock the mounting location



-Spring rate for the lil XR's linkage ratio- the adult BBR 975lbs spring = about 17.5 kg!

Excellent info

Leads in progress , but can anyone supply more info on the Works Performance shock

Looking online i don't see a spec sheet

THANKS!

 

[miniguy]

Terry if you do build the shock for that price margin it will only be for bragging rights. It wont sell enough to recoup the investment on your part to make it worth your while. If it was worth the hassle there are companies that would have done it.



There are tons of those bikes sold but most are beat to death and its cheaper to buy a new unit (bike) then try to fix a old beater unless your hearts really in it.

Most guys bothering for a restore or upgrade will opt to spend the good dough then go cheap on a shock that wont have anyone to service it in the long run.



Sure you will get the hand full that will step up and say they will buy it but by the time you actually get it ready for sale those dudes will have moved on from the bike or purchased the works or elka because they were tired of waiting.



Biggest obstacle is dealers wont stock such a item and you yourself have said you dont have enough time to sit on PM anymore as you need to be in the shop. Your promotion of the item will never get it to the general public unless they find you by chance or word of mouth.



Now if were in lala land then congrats you should sell thousands

 

[firepower354]

Prolly...

 

[gman]

:fing02:

 

[Jthomas7]

You bastard! I was hoping no one else would see that.



You know I have a CR85 conversion with a powroll 117cc engine but it's overkill for the class. Hoping this bike will be more of a "stock mod".





Just because someone doesn't make something doesn't mean there isn't a market for it. If a company is setup to make shocks already it wouldn't be that big of a deal or expensive to build the shocks, it's just doing it.

 

[theraymondguy]

Personally, I wouldn't bother trying to install a stock sized or slightly longer/heavier sprung shock into the XR frame, I honestly don't believe the frame can handle very much stress period. The frame brace is a big help, but mine will be welded into place as well as bolted (I've gained ~ 100 Lbs since my first XR mini).



Want a great bike to beat on constantly and bolt on performance? CRF150RB. Yawn.



Want to own the only cool XR in town? Hell yes. If I could find a titled XL75, I'd be building it instead of the clunker XR100 I have now.

 

[Jthomas7]

I have a nice titled XL75 but someone cut the damn wires right below the instrument cluster.