Metzler tire scraping on belt K-9

[Mike Toz]

Hey Guys, I have a 2006 Big Dog K-9. I just installed 2 new Metzler tires. I tweeked the rear tire as much as I could to give me as much clearance from rear belt. Belt still scrapes tire, even dropped air pressure to 37! Any ideas? Thank you very much, Mike Toz!

 

[Mike Toz]

Thanks, How do you shave the rear tire?

 

[HMAN]

Well, having shaved the one on the bike, it aint easy. I tried an open shoe grinder (made a lotta smoke), tried a rasp, no good either, tried several other things with very little results. Ended up using a razor blade. PIA, but it did the job. Not pretty but effective. I originally tried to find a spoke shave but they really hard to come by.

 

[HMAN]

How about a block or jack plane with a real sharp blade.

Sounds good huh? Uh.....nope. It wont cut rubber cause it givez too much. Perhaps a plastic cutter..... ya know, like a heated tightly wound wire?

 

[Mike Toz]

Thank you all but why are they selling these tires if you have to modify them when Avons run perfectly?

 

[TapioK]

Thank you all but why are they selling these tires if you have to modify them when Avons run perfectly?

Well, they don't make those for Big Dogs only. And they do mention on their site the 300 tire is between like 285 and 315. Or something

 

[woodbutcher]

BDM did their design work around the Avon, which, at the time, was a damn fine tire. So it's now either a lesser quality Avon or make do with the others.

 

[bigkelk9]

Let me break it down as I have gone through the same thing. The metzeler is actually 318mm wide, the avon is 301, ur best bet is to cock it a bit to the left and just wear it out.. replace with avon and do bearings at the same time as they will probably be wore out from riding cocked. I prefer metzeler over avon hands down, but this is just how it is on these bikes. I have an 07 K9 like Paul and don't know how he doesn't have tire rub unless his tire isn't alight correct. But it's also a p ossibilty that he has a bdm frame and not a Daytek. Good luck with whatever you do.

 

[BWG56]

I used a rasp on both the Metz and the Shinko to remove about 4mm, I had it up on the jack and just spun the tire as I rasped it until I had a radius on the tire instead of the point on the side wall

 

[TapioK]

I don't think everyone had problems with the metzlers . A lot of people but not all.if my frame is square my tire is aligned properly with evenwear.
If you have access to a lathe you can shift the wheel a tad to the left and that helps.

Metz has rather large tolerance on the tires too...

 

[Mike Toz]

Thank you all for all your input I really appreciate it!

 

[Mike Toz]

Just got in from garage and just noticed crack on sidewalk of Metzler tire I just installed this, has less than 300 miles on it looks like dry rot! What do you guys did this now?

 

[BWG56]

Just got in from garage and just noticed crack on sidewalk of Metzler tire I just installed this, has less than 300 miles on it looks like dry rot! What do you guys did this now?

What pressure do you run in the tire?
And whats the born date on the tire, its 4 numbers molded in the sidewall

 

[bdm7250]

I used a rasp on both the Metz and the Shinko to remove about 4mm, I had it up on the jack and just spun the tire as I rasped it until I had a radius on the tire instead of the point on the side wall

Who cares.. I put Avons on and rode..

 

[Mike Toz]

Guru, I run 40 in front and 42 in rear. Looks like 2116 on sidewall, don't know what that means.

 

[Mike Toz]

I'm assuming 21 production week made 2016.

 

[chili08k9]

Guru, I run 40 in front and 42 in rear. Looks like 2116 on sidewall, don't know what that means.

I think its the 21 week of 2016

 

[bigkelk9]

That's exactly what it is, tire is over a year old

 

[bigkelk9]

About a year and 3 months more or less

 

[TapioK]

Sidewalls on my metzeler gave up around 3000 miles, date was about a year old.... Avon for me...