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Chain and Sprocket Selection

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Posted by: Okiewan

Post 'em up... !


Posted by: XRpredator

I read somewhere that there's a kit to upgrade from the 520 to a 530 chain. Heck, this is a freakin 500 two stroke, it'll turn something bigger, and it also says "this sucker is built TOUGH!!"


Posted by: MXSparx

Renthal black
DID X ring


Posted by: BadgerMan

Yep, I am a Renthal fan too.


Posted by: JPIVEY

Afam system


Posted by: SFO

I love jaybird like a union brother, albiet his 530 suggestion is worthy of investigation.
OK, that 2 seconds is up.
520 is it.
530 if you wated to build a trail cruiser, nobody THINKS they are a trail cruiser, we are all racing for the gold.
Really, does anyone think they are just gonna lay back and build some ho;hum reliable bike to go trail ride?


Posted by: Jaybird

Actually, the #525 would be the best choice for beefing up the drive.
The DID 525 Xring weighs ~4-5 ounces more than the DID 520 Xring that comes on the AFX.
Same chain pitch, just the plates are slightly thicker than the 520. You would have a hard time telling it was a 525 at a glance.

I provided the idea because of the beastly power aspect of the AFX. I have always contended that a good quality 520 chain has plenty of meat.
I thought that in creating the woods beast, it may be interesting as far as scoring points for increased integrity and possibly longevity. We beef up springs and other parts for just that reason. (shrug)

Anywho...I am a bigtime fan of Rebel Gears. American machined alloy sprockets.
Doug Chestnut, owner, is willing to custom cut a 525 setup for the AFX if there is clearance for a 3mm wider chain.
The rear is no problem, but the CS needs to happen right away if it's gonna be done and hardened by deadline. He is up at the show this weekend and tells me if we know by tuesday, it can happen.
We can pony up the chain and sprockets no matter what size.

As far as chain...If we were to go with the 525, I would want to use the DID ERV as it is the smallest profile of the racing 525's
For 520, I am a big fan of the RK XSO Xring. Lasts as long as any ring chain and well built.


Posted by: SFO

I will do a big +1 on Jaybirds suggestion.


Posted by: SFO

Jaybird, couldn't you just machine a 530 c/s down to a 525?
Same pitch, no?


Posted by: Jaybird

Yes the size would work out.
What's the stock call out for sprockets on the AFX... '03 CR500(250) ?

I'm not sure that there are any 525 or 530 on the shelf that will spline up on the AFX. If there is then it can for sure be machined to work.
Most likely will be just a one-off, copying the spline of what the AFX uses.

I'm fairly certain that there is also the needed extra side clearance in the chain guide, but will need AJ to confirm this.


Posted by: GETMETOCA

Renthal


Posted by: Brian

I like the stealth rear sprockets by supersprox. Those are the two-piece aluminum inner/steel outer sprockets. My last one wore great, and I replaced it with another one. I only replaced it because the chain was missing several rollers and I wanted a new set of sprockets to go with the new chain.


Posted by: rm_racer

What about a Sidewinder Tri-metal on the back?


Posted by: oldfrt613

EK MRD6 chain - great find. I can get it unplated. Wears as good as any of the "gold" chains ( used to run DID ERT's ) - is about $20 cheaper. You can get it in gold or several other colors for an extra $10.
Can't go wrong with Renthal sprockets.


Posted by: 70 marlin

Side winder tri-metal rear, titanium chain and front.


Posted by: Jaybird

If I am to pursue the 525 set-up, I will need to know right away to make deadline.

Also, I would assume folks would be receptive to having mud reliefs cut in the rear.
I'm also assuming folks would be in concensus as far as plated chain is concerned.

How about hardcoat anodizing? I think the Black hardcoat would fit the motiff...(shrug)


Posted by: AJ Waggoner

JAYBIRD,

i missed getting back to this,and your PM.

my apologies!!!!!!!!!!!!!!!

i'm sure there is enough clearence going the 525 route..
or even the 530 route.
it should not be an issue.

for information purposes-
The AFX comes *stock* with the CRF250X ring chain..
a stock CR500 C/S sproket, and AFAM rear sproket.

the gearing and sprokets /splines info-
for whatever is decided-

Rear sprocket 48t - to fit newer Honda CR or CRF rear hub, (same pattern for a decade)

C/S sprocket 14t for 01 CR500 (same SPLINE pattern as modern CR250R - lets say 00 thru 06 )


Posted by: Patman

Well this is a DRN bike and we're trying to showcase DRN related products so I vote to go with Jaybird's 525 or 530 setup since AJ thinks it will fit. I think the 525 would be plenty and not add too much weight so that's my vote! Hardcoated black would be sweet!


Posted by: SFO

Roger that Patman, I vote Jaybird 525


Posted by: truespode

I vote for Jaybirds 525 setup as well.

One thing DRN is known for is Jaybird's sprocket, chain and lube threads

Ivan


Posted by: Patman

Ivan said "lube"




Posted by: Brian

Will this 525 or 530 chain be ringed? I know Jaybird isn't a fan of ringed chains but I'd think it would be a good idea for the application?


Posted by: Jaybird

You read me wrong, Stan. I think ring chains definately have their place on dirt bikes.
I have always been an advocate of using a standard chain for dry days and track riding. But when in the slop, the ring chain should be mounted up.
It's rivet master links that I really don't like.

The ultimate DRN woods bike should have a ringed chain, IMO.
It is my hope that Dick may ride the beast, and take it in the slop...and let the camera man know just what 500 roost is all about.

I used to sell the "Stealth" or "Tri-Metal" as Vic Krause now calls it.
I find it to be a very trick looking piece of equipment. I also find that they are built well. However, they are constructed by using titanium rivets to hold the steel outer wheel to the inner aluminum hub body, and as such, can pose a potential threat for damage or failure. I never had one customer ever complain of this situation, after SuperSprox fixed the initial clearance problem they had with these rivets. (fixing these slight issues is what got the "generation5" thing started)
In fact everyone that I know who used them liked them mucho.
I just think that if we are going to put together the ultimate bike, we should consider trying to keep potential problems away. A nice rock or stump could possibly play heck with the Tri-Metal....besides, Vic now charges about three times what I used to sell them for. (shrug)

Time is of the essence for the sprockets, so I'm going to take the liberty of putting that into motion.
For the chain, I think we need to run a poll. There are just too many ring chains that are of good quality to pick one without member input.


Posted by: Papakeith

Jay, as you know I had a stealth on my 500. I never had any problems. I say go the stealth/trimetal. I've hit plenty of rocks/stumps/dirt samples. damage wasn't an issue.

as for the chain, +1 for the 525 from jay


Posted by: Vic

I don't care what we use, as long as we lube it with WD-40.




Posted by: Jaybird

If we went with the TriMetal, we would have to buy it from Vic, as I think he has a monopoly on them now. (525?) Best looking sprocket on the market, bar none.

With the 525 set-up I think we are going to have to custom the sprockets.
Hardened steel front 14t
7075-T6 alloy rear 48t, mud relief cuts, annodize coat black.

Or...?


Posted by: Papakeith

In that case, I would say lets leave it to jay and AJ to come up with what will work best. I trust thier judgement implicitly.


Posted by: chevy383cid

Sidewinder or Sunstar,Renthal or DID on the chain.It's funny how a simple question can turn into such a debatable subject!!


Posted by: Brian

You can get the stealth sprockets through KTM hard parts, thats where I got my last two. I think they are something like $55. I doubt that would do us much good unless a KTM sprocket would bolt up to a Honda hub...


Posted by: Masterphil

I like custom parts, and If Jay's willing to do it, a 525/530 chain setup would be killer.


Posted by: Jaybird

It looks like we may just be able to have it ready in time, but it will be close.
At present, we are about .010" from having the thing perfectly centered with a stock 525 honda hub.
.010" in 2' isn't bad, but we will be shooting for perfect, as this is the ultimate woods dawg.


Posted by: Masterphil

How about anodizing on the rear sprocket? Red? To match the brake master cyl cover and the Service Honda sharkfin?


Posted by: Jaybird

It looks like we are going to make it with the #525 custom sprockets and chain.

However, anodizing of the rear is not going to happen. They couldn't promise it back in time.
If anyone knows of an anodizer that is set up and ready to go, this would be the only was we could get it done and shipped on time. I would have to know Monday morning so we could get the thing shipped ASAP. I think we will be looking at a aluminum finish rear though.

We went with the stock set-up of 14/48.
If anyone thinks we should be providng a different ratio for the testing, let me know right now and I can also send a set of #520 stuff at another gearing.

AJ,
My plan is to send the stuff directly to SH to your Atten.
Is that good?
Btw..I'm also sending a small 1oz bottle of lube for the tool pouch...I hear it's good stuff!


Posted by: AJ Waggoner

Jaybird-
yeap! send it to:

Service Honda
5634 Hohman ave.
Hammond, Ind 46320

attn: AJ

The 14/48 will be fine.


Posted by: bsmith




Posted by: SFO

The only thing I voted for that made it to the finished product!
Go Jaybird.


Posted by: SND

Quote:
Originally Posted by oldfrt613
EK MRD6 chain - great find. I can get it unplated. Wears as good as any of the "gold" chains ( used to run DID ERT's ) - is about $20 cheaper. You can get it in gold or several other colors for an extra $10.
Can't go wrong with Renthal sprockets.


Be careful with plating. This can cause hydro-embrittlement.

Just be careful.


Posted by: Jaybird

The #525 chain we sent for the bike was an RK XSO X-ring, non-plated.


Posted by: likelite

i was just thinking that 14/48 may be a bit tall for the wr gear box.just a thought.


Posted by: XRpredator

Quote:
Originally Posted by likelite
i was just thinking that 14/48 may be a bit tall for the wr gear box.just a thought.

Dude, it's a freakin' 500cc two stroke. You could probably start in 4th gear.


Posted by: likelite

i ran a 500 in harescrambles with 14/48 and stock ratios internally.this let me stay in each gear longer.kind of like wr box.just do not want top gears to be spread to far apart.we will see what happens when article comes out.it should be alright.just a thought.



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