| Author | Message | ||
     Buellistic |
Just put a set of AVONs on my BLAST ... Running 38 PSI front and 45 PSI rear ... In BLASTing LaFayette | ||
| Ezblast |
34/36-f/r | ||
| Swampy |
What Avons are you two using? The AM 51-52, or the Vyper Strykes? and what sizes? I notices some side wall cracking on the Big Kids Blast on the front tire, Avon AM 51. The thing vibrates bad, I have to take some time in the next day to check its balance. I hope it is not coming apart! | ||
| Boatwrenchv8 |
AM 51 and AM 52. Bike feels so different with good tires on it!! The dunlops that were on it were totally wore out. Back tire was flat like a car tire. | ||
| Ezblast |
I'm talking about Boatwrench's tires - I keep the Viperstrykes at 30.5 for performance. GT - JBOTDS! EZ  | ||
| Swampy |
The 38/45 psi seems a little high. I think the rating on the tire is only 34 psi. | ||
| Gearheaderiko |
WARNING!!! Running excessively high (or lower) tire pressures or tire pressures higher than factory recommended can cause serious injury or death. The wheels (especially the rear) will lock up easier under braking with every extra psi you put in it (not the only risk however, but easily the most immediate). Many things can affect what the 'correct' tire pressure for you might be, but if you start deviating greatly from factory specs, you may want to consider why. I'm baaaack!!! (Message edited by gearheaderiko on October 02, 2006) | ||
| Nytrashman |
shortly i will replace my stock tires. i have read i can use Cheng Shin tires in the following sizes: 100/90-16 front & 130/80-16 rear. will the front tire being a larger size hit the stock fender? what type of mods are required if i run an avon 140 rear? thanks George | ||
| Swampy |
NYtrashman, I have not run the Cheng Shin, so I don't know for sure, I have heard that the 130/80/16 will not fit the rear. I am using the Avon Vyper Stryke AM 63, in 110/70/16 front, and 140/70/16 rear. The benefits I have noticed so far: They are a soft compound, however they are not going "Square" yet, so they stick great and seem to be wearing long. With the larger size it gives the bike an entirely different feel, a more solid planted feel. The front needs no modification to go on the bike. The fronts are a little tricky to mount due to them being so wide they have to be squished together (not really a big deal) to keep the tire bead out of the rim lip while mounting. The larger rear requires the swing arm modification, both of mine were done with a large hammer.(pictures are posted some where on this site)(Again, not a big deal) The rear when mounted is not as wide as the Kenda 671 in 140/70/16, but it is by no means small. The price is more than reasonable, Chaparral sells the 110/70/16 front for 38.99, and the rear for 60.99, for some odd reason the stock size tires are a few dollars more for the front and 10 dollars less for the rear. So for $100, you can have a fresh set of tires. Good luck my friends! Offer is open, If you make it to my house, have the tires shipped here, and I will show you how to mount and balance them. | ||
| Ezblast |
Note from Ralph: "Please inform them, that Both Front and REAR Cheng Shin Barracuda-V (C6000) fit perfectly, and with no contact at speed (even with unmodded swingarm). Also inform Swampy that the latest Kenda 140/70 does NOT mount Wide on a blast rim, and comes out to only 120mm when mounted and is also as low as stock 120/80 as well, but is dangerous as the safetly bead won't lock on the rim and a puncture or just low pressure can pop the bead !" He was worried about the Viperstrike as well, but that puppy definately pops onto the rim, meaning it will hold its bead - lol Good advice here - listen up - also if your Blast is doing over 100mph for extended periods - such as racing, the Cheng Chin are v rated and as sticky and long lived as the Pirrelli - so I would recommend those over them or use the Viper. The Viper front is s rated and the rear is p however, when I corresponded with Avon they said the rear could have been rated higher, just that there was no need to do so, due to its targeted sales - lol GT - JBOTDS! EZ | ||
| Swampy |
It sisn't take alot of air pressure to seat the Vyper Strykes. I found the the Avon AM51 in the front is setting up some pretty un-nerving vibrations. It probably has 6000 miles on it and it has some wear patterns on it. I rechecked the balance today and took it for a ride and thereis head shake when decelerating through 45 mph. I believe it is in the tire as the wear patterns are easily identified, and when I had the front end up the steering bearings seemed tight. | ||
| Superthrob |
AVON ROADRIDERS - Anybody got news on availability for the new Avons? | ||
| Ezblast |
No news yet - just the new Viperstrykes so far. GT - JBOTDS! EZ | ||
| Johnnylunchbox |
EZ - I have been running the Kenda K671 in 140/70x16. Have there been cases of the bead popping? I have about 1000+ miles on it with no problems. Works great in wet or dry and seems to be wearing much better than the stocker did. I have had the front tire (stock) start to slide on wet pavement, but the rear has performed flawlessly. I'm wondering if I should replace it when the time comes with the Kenda 130/70x16. I would rate it as an excellent commuting tire, with the ability to handle some fairly aggressive twisties, but I certainly would not be bringing it to the track. (Message edited by gearheaderiko on October 18, 2006) | ||
| Ezblast |
Yes! No! | ||
| Johnnylunchbox |
A man of few words LOL. | ||
| Swampy |
I had the Kenda 14/70/16 rear tire on both Blasts and only got around 3000 miles on either of them. I had no bead problems, but I don't know if I had the "Old" or "New" style Kenda. The Avon AM 52 rear tire in stock size will get you 5000 or more miles. The Yellow Blast wears an Avon AM 51 front tire in stock size and is not wearing well with 5000+ miles, but it is cupping and I have head shake when decelerating 50-45 MPH. The larger size 110/70/16 and 14/70/16 in the Avon Vyper Stryke are on the red Blast, I won't have enough miles on them to tell how they will last until next season, but there is about 1000+ miles on them now and I really like them for their ride quality and handling. They also look great. For a flat out hard and fast recommendation, Avon Vyper Stryke in the larger size would get it, even with the limited wear data. Of course I have no info on the Pirelli, Cheng-Shin, or any other tire........but the Dunlop, which, well, forgetit! (Message edited by gearheaderiko on October 20, 2006) | ||
| Swampy |
When I put the Big Kids Blast back together last night I found the Avon AM51 front tire to have a serious out of round (bulge) to the sidewall! The rim is OK its just the tire. If you need it I guess you gotta get it! | ||
| Swampy |
I was out rummaging around in the garage again tonight and looked at the front tire on the Big Kids Blast, there was a side wall split in it that I had noticed and forgotten about earlier this year! This is on the Avon AM 51. As soon as the wife isn't looking(Lets me), I'm going to be ordering a Avon Vyper Stryke in the large size to match the rear Avon. | ||
| Krid80 |
Swampy, you do your own mounting and such it appears. any tips on getting that done and also, how do you balance? | ||
| Swampy |
I mount and balance my own tires. That way I don't have to wait to have it done! I don't remember having any particular problem mounting the Avon AM 51, it was a pretty easy thing to do, the one I did have problems with is the Avon Vyper Stryke in the 110/70/16 in the front as the sidewall expanded so much that I had to keep the sidewall pressed into the wheel 180 degrees from the other side I was trying to mount. I posted pictures of the static balancer that I had made up. 1/2 inch Thompson hardened rod, 1/2 inch bearings, and I had a friend of mine machine up some cones with set screws. It works great and there are instructions for it using it osted on the net. The static balancers are how they do it at the race track, so I figure thats good enough for me. | ||
| Swampy |
Here it is, no one is impressed with it over in the Big Buell Knowledge Vault! LOL!  Those are the Little Kids bare feet in the background, so that is the Avon AM52 that he picked up a wire in after only 4000 miles! | ||
| Berkshire |
Swampy, what does the fancy rig do? do those bearings have less friction than the wheel bearings? I've done the same thing, but just using the rear axle. I figured "real balancing" would be better, so I took it to "cycle gear" for balancing. The first time they ended up using the same amount of weight in the same location that I had come up with at home. The second time I couldn't even tell which side was heaviest at home, cycle gear's machine said it was perfectly balanced already. Next time I'll just go ahead and stick the weights on and see how it runs! (BTW - cycle gear didn't charge me either time; once because the wheel didn't need balancing, and once because it was closing time and they had already closed out the cash register) | ||
| Joey |
Did you balance it with the pully off? One time I noticed it wasn't balanced, so I took it back. They had balanced it before they put the pully back on. It wasn't far off, but it was enough to be noticeable. | ||
| Swampy |
The smaller bearings have less resistance and work much better, they are not packed with grease, they were soaked in thinner and sprayed with WD40. The seal was a metal type seal so it does not seal at all. You should not take your pulley off to mount or balance your tire.....why you ask? Because you need to replace the mounting bolts! I used to use the wheel bearings and axle, but the results were not repeatable, it would stop in different places due to the friction in the wheel bearings, this way it is so much faster and repeatable for where the tire stops. You simply set the assembly in place and the heavy spot goes down, you don't have to spin the wheel. Then as you add weights to the top side you rotate the wheel 90 degrees and the heavy spot goes to the bottom so you can either add more weights or cut one in half! | ||
| Gearheaderiko |
I used a wheel balancer that looked like yours and it worked very well. However your looks to be an even better design!(your cones are a lot longer which would have made the job easier) | ||
| Jugallo94 |
Swampy, the time has come to get new tires for the bike. Once I get my rims powdercoated, I will be bringing the rims and tires to you. I figure if I can get atleast 5000 out of the viperstrykes then that is good enough since that is about all I get out of my avon now. No threads popping yet, but such a flat spot it makes cornering very unsettling. | ||
| Swampy |
You bet, I will be waiting. How are you going to get the old tires off to get your rims powder coated? Get the bigger set, you will really like them. I got my last ones from Chapperell. $100 for both! Hows your front engine mounting bolts? we can do them too, LOL! Are you going to take your rearsets off to make patterns this winter? | ||
| Jugallo94 |
The front engine bolts are fine. I should be able to get to the rearsets for ya this winter. I am gonna change my belt anyways so atleast the right rearset has to come off. I havent figured out getting the tires off yet. I got a few prybars and tires spoons laying around and some c clamps so it shouldnt be a problem. | ||
| Kdkgrizz |
Hello, Last year I bought my kid a used P3. It already had a V&H exhaust on it, and I have since installed new jets and a new intake system. The bike is in serious need of tires. I would like to get something wider and better handling than the stock tires. We live in Michigan so the tires have to be just as good in the rain as they would be on dry (Well within reason). I am open to any and all suggestions. The rider is very experienced and 6'2" 240lbs if that makes a difference at all. Thanks Thumpers. |
