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Motorcycle Forum / General / Technical / January 2008How much tire weight is too much?
Had to put nearly 3 ounces (85 grams) of weights on an Avon Storm tire to get it to static balance. Seemed like a lot of weight for a premium tire. Anyone had similar experience? Dealer said I shouldn't have to balance it since most motorcycle tires are pretty much balanced from the manufacturer. Not to doubt him, but that seems a stretch. B~ > Had to put nearly 3 ounces (85 grams) of weights on an Avon Storm tire to > get it to static balance. Seemed like a lot of weight for a premium tire. [quoted text clipped - 3 lines] > pretty much balanced from the manufacturer. Not to doubt him, but that > seems a stretch. How well did the wheel balance by itself before the tire was mounted ? > Dealer said I shouldn't have to balance it since most motorcycle tires are > pretty much balanced from the manufacturer. Ri-ight.  SignatureK1100LT 750SS CB400F CD250 SL125 GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3 BOF#30 WUSS#5 The bells, the bells..... chateau dot murray at idnet dot com > Had to put nearly 3 ounces (85 grams) of weights on an Avon Storm tire to > get it to static balance. Seemed like a lot of weight for a premium tire. > Anyone had similar experience? > Dealer said I shouldn't have to balance it since most motorcycle tires are > pretty much balanced from the manufacturer. Not to doubt him, but that > seems a stretch. Did you put the splice opposite the valve stem? It's been a while since I changed my own tyres, but ISTR that some manufacturers put the paint dot at the splice and some put it opposite. I ended up ignoring that and physically locating the splice myself. Maybe tyre technology has changed a lot since, but if the tyre itself is perfectly balanced (e.g. no splice) you still have to counter the valve stem. The other problem is if you don't get the tyre seated properly all the way around -- the circumferential marking should be equidistant from the rim all the way around on both sides. SignatureIvan Reid, School of Engineering & Design, _____________ CMS Collaboration, Brunel University. Ivan.Reid@[brunel.ac.uk|cern.ch] Room 40-1-B12, CERN GSX600F, RG250WD "You Porsche. Me pass!" DoD #484 JKLO#003, 005 WP7# 3000 LC Unit #2368 (tinlc) UKMC#00009 BOTAFOT#16 UKRMMA#7 (Hon) KotPT -- "for stupidity above and beyond the call of duty". > Had to put nearly 3 ounces (85 grams) of weights on an Avon Storm tire > to get it to static balance. Seemed like a lot of weight for a [quoted text clipped - 5 lines] > > B~ If I remember rightly, the Avons don't have a designated heavy spot. The irony is if the tire doesn't have a heavy spot, you need more weight to counter the valve. For the record, was the added weight opposite the valve? > "George R. Young" wrote: > If I remember rightly, the Avons don't have a designated heavy spot. The > irony is if the tire doesn't have a heavy spot, you need more weight to > counter the valve. > For the record, was the added weight opposite the valve? George, you're right. The weight is exactly 180 degrees from the valve. The previous Avon on the bike had maybe 1-1/2 ounces, but it was maybe 110 degrees from the valve. The Avons did not have any mark or dot for positioning next to the valve stem. They must overlap the rayon belt quite a bit for 3 ounces. I would have liked to try and rotate the tire but after the bead seals, it becomes a major pita to fuss with breaking it down again by hand. Fwiw, I haven't seen any tire balance out enough for a dealer to say "They're good enough as is and don't require balancing." Probably just don't want to balance them. The Metzelers balanced out with far less weight but the ride was much harsher due to the steel belt and tendency to scallop around the tread patterns. I'll try the pair of Maxon's buried in the garage after I shred the Avons in about 3K miles. My sportbike tires just don't last very long. B~ > Probably just > don't want to balance them. Ding. Go to a proper tyre place. SignatureK1100LT 750SS CB400F CD250 SL125 GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3 BOF#30 WUSS#5 The bells, the bells..... chateau dot murray at idnet dot com >The weight is exactly 180 degrees from the valve. Break the bead on both sides and rotate the tire 180 degrees on the rim. It probably won't render you "weightless" but it will probably help. -- Jack It doesn't make any difference how much weight is used so long as half is on the left and half on the right side of the rim or else you will incur dynamic imbalance. Are you sure no liquid sealant has been introduced into the tube? Any liquid will seek the greatest radius and sit there, imblancing the assembly. Il mittente di questo messaggio|The sender address of this non corrisponde ad un utente |message is not related to a real reale ma all'indirizzo fittizio|person but to a fake address of an di un sistema anonimizzatore |anonymous system Per maggiori informazioni |For more info https://www.mixmaster.it |
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