• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Bum Demon

glib

glib

Forum Mentor
Past Site Supporter
Just got new Pirelli Demons and went on my first ride out of town since getting the bike last July. Today I was lubing the chain and when I rotated the rear wheel I noticed a flat spot in the tire. It is no small defect. I contacted the E-bay seller, Chaparral Motorsports, to return it. Hopefully they will be as easy on the return as they were on the sale. I made a quick video of it but I don't know how to embed the video here so as to avoid linking over to photobucket like we can with pictures. Anyway, very disappointed and surprised and now concerned about getting a perfect replacement.
 
glib said:
I made a quick video of it but I don't know how to embed the video here so as to avoid linking over to photobucket like we can with pictures.
Click to expand...

What's wrong with linking to Photobucket? :-k

We have been doing that for years. The "embed" feature was only added a few months ago.

.
 
If you balance them yourself, check for defects then. Flat spot and excessive wobble are easy to spot.If you pay someone to mount/balance your tires, they should look for defects too!
 
I had the original front tire on my 750 develop cord seperation (huge bubble on tread surface) with less than 2k on it. Suzuki wouldn't cover it under warranty. What really sucked was at the time, 16in fronts were hard to get yet. Couldn't ride it for three weeks....
 
tom203 said:
If you balance them yourself, check for defects then. Flat spot and excessive wobble are easy to spot.If you pay someone to mount/balance your tires, they should look for defects too!
Click to expand...

Had them mounted and balanced. I didn't think about it. Def will have them check next time.
 
Steve said:
What's wrong with linking to Photobucket? :-k

We have been doing that for years. The "embed" feature was only added a few months ago.

.
Click to expand...

I like the embed much better--cleaner. Instructions or point me to them?
 
glib said:
I like the embed much better--cleaner. Instructions or point me to them?
Click to expand...

It may be "better and cleaner", but the link still works.

Someone else will have to provide directions, I have not even tried embedding, let alone mastered it. :oops:

.
 
OK here it is. I didn't think it was going to be a big deal but now the dealer says it will have to be sent to Pirelli to be evaluated and if they can balance it and it "tracks like normal" they won't replace it.

 
Last edited:
Yikes!

Very interested since I (had) installed a set of Sport Demons eleven hundred miles ago.
 
Well, I am going to buy a new tire from the shop that installed my Bum Demon and they are only going to charge me $12 more than I can get it from Chaparral Motorsports. So they'll swap tires tomorrow and I'll send the defective one to Pirelli to be evaluated. The guy that messaged me through E-Bay from Chaparral Motorsports in San Bernadino CA refused to look at the video--really annoying--we he said their security settings prevented him from opening it. I said someone there must have a smart phone they could view it on. No response. So sorry I was quick to give them positive feedback and now I can't do crap about it. But if the tire does get replaced at least I can put it on my GS1100E. No more online tires for me.
 
My set of these arrived last week. I'll be looking at them verrrrrry closely when mounting/balancing. Sorry Chaparral isn't giving you good service....at all.
 
growler said:
My set of these arrived last week. I'll be looking at them verrrrrry closely when mounting/balancing. Sorry Chaparral isn't giving you good service....at all.
Click to expand...

While I am still disappointed at Chaparral, I decided to close my claim and keep the tire yesterday after taking it to the shop to swap for a new one. After sitting off the bike for half the day, it showed no sign of the previously obvious defect. We spun it on the computer balancer and then on the manual style balancer they use for checking/truing wheels. Four guys including myself could not see a significant flat spot and agreed that it must have been that the compound of the tire is soft enough to allow a flat spot to be created when the bike sits on the side stand. If I remember my timeline, it didn't take all that long either--same day. A big relief for me really because I thought it odd that Pirelli could miss a flaw like that and was worried about getting a perfect replacement.

So I hope this ends up helping someone else. The Sport Demons are soft and sticky--just like I wanted.
 
Now I'm getting scared. My bike has been on the side stand (w/brick) since December, when I crashed her.

I'm going to the garage right now and putting her on the rear paddock stand.

Was very pleased with my choice. I told my mechanic, "I don't give a darn about long life, I want soft and sticky."

Update: Rear tire is off the ground, but it doesn't spin freely enough to check for flat spots and alignment. And the engine - she no run.
 
Last edited:
I hope your problem is resolved but I've never heard of soft compound tires flat spotting from just sitting for a few days let alone all winter while in storsge. I've burned dozens of sets of "R" compound tires over the years never seen it. Good luck with the new set.
 
I run those same tires without a hitch. As a matter of fact I like them a lot.
Sorry about your incident.
I've been doing business with Chaparral for years and I am sure they would have replaced it.
 
You must log in or register to reply here.
Back
Top