Member Contributer SilverVee Posted June 10, 2011 Member Contributer Share Posted June 10, 2011 Stock rear tire/wheel had 1 3/4 oz near the valve stem. Removed the weights before getting PR2s installed and balanced, they came back with 1 1/4 oz in virtually the same spot. Looks like it's the rim that is out balance. Front was /is weightless. Guess that's why it heads for the sky so often. Link to comment Share on other sites More sharing options...
Member Contributer DougFromIndy Posted June 10, 2011 Member Contributer Share Posted June 10, 2011 Find a new installer. Did you pay these guys? If they cannot do job the right way (no tool) the rear should be free. Why should you have to mess with it? Blue Water Tires, Gratiot and 24 mile http://newbaltimore....lue-water-tires Link to comment Share on other sites More sharing options...
Auspanglish Posted June 10, 2011 Share Posted June 10, 2011 I think a lot of so-called specialists in tyres don't know that there's a spot marked on the tyre where it's intentionally lighter to accomodate for where the valve goes on the rim (where it's unavoidably heavier)... You're supposed to line the spot up with the valve stem. Link to comment Share on other sites More sharing options...
Member Contributer dutchinterceptor Posted June 10, 2011 Member Contributer Share Posted June 10, 2011 I think a lot of so-called specialists in tyres don't know that there's a spot marked on the tyre where it's intentionally lighter to accomodate for where the valve goes on the rim (where it's unavoidably heavier)... You're supposed to line the spot up with the valve stem. After mounting up nearly 300 sets of tires I've found that the valve stem is rarely if ever the heavy spot on wheels plus not every tire manufacturer(ie Michelin) marks the light spot on their tires. Always balance your rims to find the actual heavy spot before mounting your tires. Link to comment Share on other sites More sharing options...
Member Contributer Rice Posted June 10, 2011 Member Contributer Share Posted June 10, 2011 I invested in Marc Parnes balancer. It paid for itself after 1st install with $170 they want to mount and balance tires off the bike around here. DynaBeeds I haven't had a good experience with. Might be operator error, so... I still have 1/2 a can of them sloshing around in my garage. Link to comment Share on other sites More sharing options...
Monk Posted June 10, 2011 Share Posted June 10, 2011 Find a new installer. Did you pay these guys? If they cannot do job the right way (no tool) the rear should be free. Why should you have to mess with it? Blue Water Tires, Gratiot and 24 mile http://newbaltimore....lue-water-tires If they (shop) do it like mine (shop) they charge to mount, and charge to balance....... Which comes to $25 a tyre off the bike for M&B, but knock $5 off each tyre that isn't balanced. I balance my own. My rear tyre will usually have to have 3/4 to 1 ounce of weight. Link to comment Share on other sites More sharing options...
Auspanglish Posted June 10, 2011 Share Posted June 10, 2011 I think a lot of so-called specialists in tyres don't know that there's a spot marked on the tyre where it's intentionally lighter to accomodate for where the valve goes on the rim (where it's unavoidably heavier)... You're supposed to line the spot up with the valve stem. After mounting up nearly 300 sets of tires I've found that the valve stem is rarely if ever the heavy spot on wheels plus not every tire manufacturer(ie Michelin) marks the light spot on their tires. Always balance your rims to find the actual heavy spot before mounting your tires. I hear ya!! Link to comment Share on other sites More sharing options...
spud786 Posted June 11, 2011 Share Posted June 11, 2011 With dealer balancing, around 95 mph, z6's would get some out of balance, the Ppowers didnt show up till about 110 mph, This was through a few mounts of these tires and what I repetitively saw with dealer auto balance techniques, and I even tried different dealers. They all go to the same schools. Typically the weight was in the right place, just not the right amount. But what can you expect with a 45 second balance job. Link to comment Share on other sites More sharing options...
Member Contributer vfrcapn Posted June 11, 2011 Member Contributer Share Posted June 11, 2011 After mounting up nearly 300 sets of tires I've found that the valve stem is rarely if ever the heavy spot on wheels plus not every tire manufacturer(ie Michelin) marks the light spot on their tires. Always balance your rims to find the actual heavy spot before mounting your tires. My 8 spoke is way out of balance, always makes balancing the wheel-tire combo a chore. But since I've been sticking to the PR2's it generally takes the same weight in the same spot. From what I've read manufacturers don't generally have a 'light' spot on the tire anymore. How would they determine the light spot and mark it prior to shipment anyway? Link to comment Share on other sites More sharing options...
Member Contributer Lobster Posted June 11, 2011 Author Member Contributer Share Posted June 11, 2011 You know what is funny? I bought the Dyna Beads and totally forgot about them....hell I'm not even sure where they are right now! I haven't noticed any issues with the rear, but that could be because of: 1. I haven't ridden fast enough to notice a slight out of balance or 2. The tire was somehow balanced as it was installed...yeah right. or 3. I'm such a shitty rider I wouldn't even notice anyway...most likely! Thanks for all the ideas. Link to comment Share on other sites More sharing options...
tireguy Posted June 17, 2011 Share Posted June 17, 2011 Hi Lobster, I mount and balnce tires all the time, I have my own tire mounting and balancing equipment and have done about 170 tires over the past two years so I have a fair amount of experience with all sorts of wheels, with all different brands of tires. I have mounted a few tires that did not require any weight at all to be perfectly balanced and one or two of them were Metezeler's, so it does happen. Most of the tires I've done required about 1 to 1 1/4 oz (28-35grms) of weight. If a tire needs more than say 50 grams to balance a lot of shops will reject it. On Metezelers there should be a little red dot that should be lined up with the air valve, on Dunlops it's a yellow dot. The dots represent the lightest point of the wheel, the valve stem is usually the heavy spot, line em up and they should be off setting each other. Link to comment Share on other sites More sharing options...
spud786 Posted June 17, 2011 Share Posted June 17, 2011 My wheels the stem is the lightest part of the rim, I should balance the rims with stickey hidden weights Link to comment Share on other sites More sharing options...
Member Contributer bobo Posted June 17, 2011 Member Contributer Share Posted June 17, 2011 Hi Lobster, I mount and balnce tires all the time, I have my own tire mounting and balancing equipment and have done about 170 tires over the past two years so I have a fair amount of experience with all sorts of wheels, with all different brands of tires. I have mounted a few tires that did not require any weight at all to be perfectly balanced and one or two of them were Metezeler's, so it does happen. Most of the tires I've done required about 1 to 1 1/4 oz (28-35grms) of weight. If a tire needs more than say 50 grams to balance a lot of shops will reject it. On Metezelers there should be a little red dot that should be lined up with the air valve, on Dunlops it's a yellow dot. The dots represent the lightest point of the wheel, the valve stem is usually the heavy spot, line em up and they should be off setting each other. I've always heard that Michelin has the highest the highest quality control of any of the tire manufactures.You would think that in this day and age tire manufacturers could make a piece of rubber thats perfectly round and relatively balanced.Apparently it's not that easy. Link to comment Share on other sites More sharing options...
Member Contributer Belfry Posted July 21, 2011 Member Contributer Share Posted July 21, 2011 I have only ever used Metzler Z6s in the past. I finally got my new PR 2CTs mounted this past week. The only problem was that the shop couldn't balance the rear wheel / tire. I think the closest shop who can is 50 miles from here...damn... (The front apparently balanced with no wheel weights necessary...hmm...) I was going to try and ride the thing for a while and see if I noticed anything goofy from the back end before asking this, but apparently we have a delayed spring here in Detroit so I haven't ridden it past the garage door seal... Any forward thoughts before I take it out? Reviving an older thread, but I was using the search function mining for wisdom and came upon this. I'm in exactly the same situation, Lobster: I'm half unbalanced (though friends might say entirely...). The closest Honda shop closed down a couple of years ago at the onset of the big fiscal implosion. No loss actually. It was one of the giant power sports shops with lousy service and cocky 19-year-olds seemingly running the place. It deserved to fold. As a result, I've been taking my bike business to a nearby Suzuki dealer (I also own a Suzuki), which still has some "dealer" attitude, but the service people are competent, polite and their prices are reasonable--for a dealer. In any case, I had my PR2CTs mounted not long ago by the Suzuki shop. When I called and said I'd be bringing in wheels and tires for a VFR, the service guy (probably a wisened 23...) said: "Hmmm, that's got a single-sided swingarm right? We might not have an adapter to balance that." I thought 'not bad for a Suzuki-only dealer.' They turned the tires and wheels around in less than 24 hours (no scratches, arrows pointing in the right direction, etc.) but, as predicted, they couldn't balance the rear. They even called before they started to confirm that I wanted them to go ahead knowing that they couldn't balance the rear. Meanwhile, I phoned the next nearest Honda dealer and asked about just getting a balance on the rear. The kid on the phone (this guy sounded 16...), said: "Yeah, we could balance it for you but it would be $25. But you know, for $25 we could use Ride-on instead--all the sportbike guys are doing it!" I said thanks, but no thanks and have been riding with a balanced front and an unbalanced rear. Due to work, life, and weather, I haven't been able to go far or fast with the new tires--and so far it seems fine. I rarely touch triple digits (mph--or high triple digits kph) so if there's no issue until 100+ mph there's really no issue for me. The PR2CT front only took one and half of those little stick-on weights (what are they, 1/4 oz/7 grams?) so it wasn't out by much. My understanding is that the rear isn't as critical as the front in terms of balance, and if it's as close it probably won't be an issue for me. I have, however, considered ordering some dyna beads as cheap insurance. Motorcycle Consumer News says they don't work, but Kaldek seems to love them. But then, can you really trust someone from a place where the toilet flushes backwards? Maybe the beads run backwards in his tires and work better that way? I have read various reports about Ride-on and Slime. They claim to balance as well as offer puncture protection, but I just don't like the idea of a lot of peanut-buttery goop sloshing around inside my tires. I've also heard it can be tough to clean out of wheels. I suppose I should just bite the bullet and buy the Marc Parnes balancer and some weights, but so far so good with the unbalanced rear. Link to comment Share on other sites More sharing options...
Member Contributer dutchinterceptor Posted July 21, 2011 Member Contributer Share Posted July 21, 2011 You might consider taking it to an automotive tire place. Until I got the BMW adapter to balance my buddies K12S rear wheel that's what he did. He'd take a strip of stick-on weights with him and they never charged him. Link to comment Share on other sites More sharing options...
Member Contributer Ryanme17 Posted July 21, 2011 Member Contributer Share Posted July 21, 2011 You might consider taking it to an automotive tire place. Until I got the BMW adapter to balance my buddies K12S rear wheel that's what he did. He'd take a strip of stick-on weights with him and they never charged him. I've tried that and all have refused to touch a motorcycle tire for liability reasons. Now I just go with unbalanced tires, and never have had an issue. Link to comment Share on other sites More sharing options...
Member Contributer SamW Posted July 28, 2011 Member Contributer Share Posted July 28, 2011 I think a lot of so-called specialists in tyres don't know that there's a spot marked on the tyre where it's intentionally lighter to accomodate for where the valve goes on the rim (where it's unavoidably heavier)... You're supposed to line the spot up with the valve stem. After mounting up nearly 300 sets of tires I've found that the valve stem is rarely if ever the heavy spot on wheels plus not every tire manufacturer(ie Michelin) marks the light spot on their tires. Always balance your rims to find the actual heavy spot before mounting your tires. :+1: I have noticed the same thing, I mount and balance my own tires, always put the wheel without weights or tire on the balancer to find the heavy spot, mark it, line that up with the mark on the tire, normally only needs minimal weights if any at all. Next time you are at a race, look at the balancer the factory tire guys use for the racers, if it is good enough for them, it is good enough for me. Link to comment Share on other sites More sharing options...
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