Bad luck with SuperSprox Stealth Sprocket

A while ago I posted about my DID 520ZVM chain having gone bad with only a few thousand miles worth of riding on it. Well I ordered an RK chain and just had it installed today, but right after installing it the mechanic found that this chain also has a tight spot and a very loose spot - the exact same problem I was having with the DID chain. Well it turns out that it wasn't the chain after all. The SuperSprox Stealth Sprocket I had installed this spring became "out of round" - meaning it somehow got deformed and did not maintain its perfectly round shape, causing a very loose spot in the chain. So I purchased a Renthal sprocket to replace it and will be calling SuperSprox to see if they can refund me some of my money for the POS sprocket they sold me. Just FYI in case anyone was thinking of buying the Stealth Sprocket, or for those who have one and may be having chain tension issues. :fact

Oh my word, that's crazy! I love the sprocket, but fn' out of round?? that's just carelessness

I go by the rule: Replace the chain, replace the sprocket. Might be the expensive way to go, but I havent had one problem yet.

should have got renthal in the first place. how many racers use stealth? answer NONE!:yesnod

Those stealth sprockets are not the only ones which can be out-of-round;most of the time,they are born like that. All should check the sprockets for this when installing. I know its details,but when you decide to wrench on your bike,its your life/money......

Thanks MegatronR1! That's a shame because I really wanted one

Thanx :thumbup

Theres AFAM hard anodized sprockets and theres everything else. But thats just my $.02

Originally posted by blur1 should have got renthal in the first place. how many racers use stealth? answer NONE!:yesnod Yup I have Renthal now and it kicks ass... looks 1000x better too.. :rock :boobies

I've been thinking about renthal or afam too

when I spoke with the shop mech who worked on my bike, he recommended both brands over any others out there.. he said he has seen the best results from both, and so you can't go wrong with either of them..

What's the best way to tell if it's perfectly round or not?

Originally posted by Goose What's the best way to tell if it's perfectly round or not? I got a SS Stealth Sprocket today :crash Courtesy of Mega's infromation regarding out of round I will check it like this .... Sprocket onto the wheel Wheel onto the bike Dial test indicator onto the sprocket Move wheel round tooth by tooth Measure and record the deflection Martin C ..... What level of deflection should I accept???

None...but hey,its just me :)

I have a SuperSprox on my R1 track bike. NO problems with it, I installed it at the same time as the DID ERV2 and the Vortex case hardened front sprocket. The ability to go out of round is not limited to the Stealth sprocket, it can happen to all of them.

dial test indicator? deflection? I don't speak Greek ;)

Originally posted by Goose dial test indicator? deflection? I don't speak Greek ;) Goose my man .... A dial test indicator (DTI) is like a clock with a probe at the end. As you move the probe, the clock hand moves round. The clock goes in tiny fractions of a mm or inch. Deflection, in this case, is simply the amount that the clock hand moves. The clock is secured to something that you are sure will not move, the probe is contacted with the surface to be measured and the clock face is set to zero. The tops of each tooth will be contacted with the DTI probe and the readings recorded. Sorry for the jargon in my first post :beer

Originally posted by Eyespy I have a SuperSprox on my R1 track bike. NO problems with it, I installed it at the same time as the DID ERV2 and the Vortex case hardened front sprocket. The ability to go out of round is not limited to the Stealth sprocket, it can happen to all of them. From a much relieved John (having just bought one) ....... Eyespy .... When you say "the ability to go out of round" do you mean it is mis-shapen when you buy it or that it can go out of round after a period of use? :bow :bow :bow

Originally posted by jdyzf750 Goose my man .... A dial test indicator (DTI) is like a clock with a probe at the end. As you move the probe, the clock hand moves round. The clock goes in tiny fractions of a mm or inch. Deflection, in this case, is simply the amount that the clock hand moves. The clock is secured to something that you are sure will not move, the probe is contacted with the surface to be measured and the clock face is set to zero. The tops of each tooth will be contacted with the DTI probe and the readings recorded. Sorry for the jargon in my first post :beer hmm.. very inte..re..sting. I've been beating on my stealth for a while now w/ no signs of trouble (knock on wood, knock knock). So getting this "(DTI)" is the only way to tell then? Besides the loose/tight spots on the chain? I'm also curious how they can go out of round w/ regular use...... :dunno

Originally posted by Goose hmm.. very inte..re..sting. I've been beating on my stealth for a while now w/ no signs of trouble (knock on wood, knock knock). So getting this "(DTI)" is the only way to tell then? Besides the loose/tight spots on the chain? I'm also curious how they can go out of round w/ regular use...... :dunno Eyespy will be awake in a while and will, I am sure, put our minds at rest. A DTI is a really useful bit of kit to own. I got mine free from a company I worked for (nicked it). It can be used for any purpose where run-out is a suspected problem (eg ... Brake disks, bent shafts etc...).

Thanks JD- Going to have to look into one of those, like you say could come in handy for this and other purposes.

Originally posted by Viper333 Theres AFAM hard anodized sprockets and theres everything else. But thats just my $.02 Ditto, no problems here :thumbup

Originally posted by jdyzf750 Eyespy will be awake in a while and will, I am sure, put our minds at rest. A DTI is a really useful bit of kit to own. I got mine free from a company I worked for (nicked it). It can be used for any purpose where run-out is a suspected problem (eg ... Brake disks, bent shafts etc...). Being in quality control in the automotive industry, I have been able to add a couple nice pieces to my tool kit as well, by acquiring in a similier fashion. Have found them to be valuable additions many times over. 1. Digital Height Gage/indicator and stand 2. Digital Calipers 3. Digital IR Thermometer 4. Digital Scale 5. Digital Ohm meter Who knows, maybe one day I'll return them, well maybe not :lol

w00t w00t! just got my tri-metal sprocket in the mail today!!! i found it on ebay for $69.99 and the absolute lowest priced retailer in the area wanted $120.00 for it. http://www.r1-forum.com/gallery/data/502/461820060e6146883.jpg im kinda worried about how it looks a lil different than the other ones ive seen... counterfeit???

I've got the owner's contact information for Stealth.. we are importing there new improved models into the country next month... If you need to contact him PM me and let me know.. I had a stealth on my 220 hp nitrous 02 R1 and it never failed.. and still have alot of customers using them on high power bikes with no troubles...

is it absolutely positively 100% of the time when you change the rear sprocket you change the front sprocket and chain at the same time?

http://www.venomsprockets.com/DSC07180.JPG

Originally posted by BlueBluR604 is it absolutely positively 100% of the time when you change the rear sprocket you change the front sprocket and chain at the same time? well racers dont, but its not"ideal" not to.

If you drop a venom moto... GET THE Bill D signature edition!

pics?

Same one you showed but it's got BILL D signature on it...

good info