« previous next »
Pages: [1]   Go Down

Author Topic: Front tire off center, wrong size tire.  (Read 2030 times)

0 Members and 1 Guest are viewing this topic.

Offline jamesbekman

  • Hot Shot
  • ***
  • Posts: 380
Front tire off center, wrong size tire.
« on: August 18, 2014, 08:01:23 AM »
Hi Everyone,

I took wheels off a CB500K parts bike and fitted them to one of my CB500K0 projects.  The tire is oversized and it also looks like its off center.  I cannot fit the front fender to it or run my brake lines at all.  They definitely look like the standard rim with just a way oversized tire on them but when looking at the pictures, it still looks way too close to the left fork.  If you guys can take a look and tell me what you think it would be greatly appreciated.

Cheers,

James

Logged

Offline Schnell

  • Expert
  • ****
  • Posts: 1,002
Re: Front tire off center, wrong size tire.
« Reply #1 on: August 18, 2014, 08:15:46 AM »
Loosen up the top and lower triple tree fork clamps and the front axle clamps. Loosen or remove the front fender as well. The fork tubes may just be a bit skewed. Be sure to support the front end of the bike when you do this. Bike on center stand, front end either suspended from ceiling, or propped up from the floor. Also, be careful to not over-tighten the top triple tree bolts so as not to crack it, as some are susceptible to this.

And get a properly sized tire.
« Last Edit: August 18, 2014, 08:22:34 AM by Schnell »
Logged
A good traveller has no fixed plans and is not intent on arriving. --Lao Tsu

primary: 1974 Honda CB750
long term, now resting: 1981 BMW R100/7
project: 1971 Honda CL350
project: 1974 Honda CB450

previous:
1975 Honda CB750
1973 BMW R90/6
1981 Suzuki GS650
1973 Honda CD175

My little website: http://frankfoto.jimdo.com/

Offline fmctm1sw

  • Old Timer
  • ******
  • Posts: 3,042
Re: Front tire off center, wrong size tire.
« Reply #2 on: August 18, 2014, 09:52:09 AM »
Did it fit like that one the other bike? 
Logged
Quote from: 754
Dude is that a tire ? or an O-ring..??

Quote from: inkscars
This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,077
  • I refuse...
Re: Front tire off center, wrong size tire.
« Reply #3 on: August 18, 2014, 10:11:20 AM »
What is the tire size listed in the sidewall of the front tire?
Logged
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

Offline Steve_K

  • Expert
  • ****
  • Posts: 923
Re: Front tire off center, wrong size tire.
« Reply #4 on: August 18, 2014, 10:13:01 AM »
I would check if the speedo drive is pushing on the lower fork.  It is supposed  to be on the bottom of the fork.   
Also, if you check other stock CB550's and 750's wheels, you will find that they are offset or NOT centered between the forks.  It is hard for me to tell from the pics if it is more than usual.

Steve
Logged
Steve_K

76 CB 550, 73CB750, 86 GSX-R750, 16 Slingshot
Old rides:305 Honda, CL350, 74 CB550
 05 SV1000S, 88 CBR600,92 VFR, 88 Hawk GT, 96 Ducati 900SS, 98 Kaw ZX6R, SV650

Offline fmctm1sw

  • Old Timer
  • ******
  • Posts: 3,042
Re: Front tire off center, wrong size tire.
« Reply #5 on: August 18, 2014, 10:43:19 AM »
I think your problem is more rim related even if the tire is too big.  Those spokes look way too close to the brake caliper arm.  The back of the caliper would likely interfere with the spokes.  Are you sure you have it assembled right?  Missing a collar or something?  Or, like Steve said, somebody respoked it and botched up the offset (very) badly. 
Logged
Quote from: 754
Dude is that a tire ? or an O-ring..??

Quote from: inkscars
This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline jamesbekman

  • Hot Shot
  • ***
  • Posts: 380
Re: Front tire off center, wrong size tire.
« Reply #6 on: August 18, 2014, 10:46:51 AM »
In regards to the fit on the other bike I do not know...  The tire itself is definitely oversized when compared to another cb500, the tire is a lot wider and fatter.  I also see the tire is actually offset on the other cb500 as well.  It just looks like its offset more than it should be and was wondering if anyone had come across this problem before. 
Logged

Offline jamesbekman

  • Hot Shot
  • ***
  • Posts: 380
Re: Front tire off center, wrong size tire.
« Reply #7 on: August 18, 2014, 10:50:01 AM »
Ill have to check on the spokes and the caliper clearance to verify.
Logged

Offline calj737

  • Really Old Timer ...
  • *******
  • Posts: 21,077
  • I refuse...
Re: Front tire off center, wrong size tire.
« Reply #8 on: August 18, 2014, 11:33:21 AM »
Looks to be. 21"x 110 from a Harley perhaps. But the label on the tire will answer a lot of questions.
Logged
'74 550 Build http://forums.sohc4.net/index.php?topic=126401.0
'73 500 Build http://forums.sohc4.net/index.php?topic=132935.0

"Of all tyrannies, a tyranny sincerely exercised for the good of it's victim may be the most oppressive. It may be better to live under robber barons than under omnipotent moral busybodies. The robber baron's cruelty may sometimes sleep, his cupidity may at some point be satiated, but those who torment us for our own good will torment us without end for they do so with the approval of their own conscience." - C.S. Lewis

DH

  • Guest
Re: Front tire off center, wrong size tire.
« Reply #9 on: August 18, 2014, 12:43:35 PM »
is the axle installed backwards? If its turned round with the spacers incorrectly
installed or combination of the two can cause the wheel tire to be uncentered..
speedo drive is flipped over too, tho don't know if that has anything to do with things..
can't recall for sure but wonder if axle nut is put on wrong, or
maybe has a deep side or shallow side? nut needs to be installed other way round?
"Spool" looking axle nut goes on left side of the bike, and when you install it, start it hex end first.
several different combinations, but only one correct way.
Something along those lines?
« Last Edit: August 18, 2014, 02:49:40 PM by DH »
Logged

Offline MandEms

  • Full Member
  • *
  • Posts: 89
  • MandEms
Re: Front tire off center, wrong size tire.
« Reply #10 on: August 18, 2014, 04:33:29 PM »
I have a 76 550F and the front wheel is off center.  Found this on FAQ by HondaMan.  See Reply #11.

http://forums.sohc4.net/index.php?topic=7401.msg67260#msg67260
Logged
Mark

Offline fmctm1sw

  • Old Timer
  • ******
  • Posts: 3,042
Re: Front tire off center, wrong size tire.
« Reply #11 on: August 18, 2014, 04:37:46 PM »
Quote from: MandEms on August 18, 2014, 04:33:29 PM
I have a 76 550F and the front wheel is off center.  Found this on FAQ by HondaMan.  See Reply #11.

http://forums.sohc4.net/index.php?topic=7401.msg67260#msg67260

I'm not sure it's supposed to be off center by that much though.  To me it doesn't even look like he'll be able to get the brake pad backing installed without the spokes crashing into it.  That can't be right can it? 
Logged
Quote from: 754
Dude is that a tire ? or an O-ring..??

Quote from: inkscars
This is not a pod thread
This is not a #$%* on my vacuum gauges thread
This is a help or GTFO thread.

1973 CB350F
1973 CB350G
1975 CB550K
1983 GL650I
1973 CB750K3 (http://forums.sohc4.net/index.php?topic=92888.0)
1984 Kawasaki KLT-250 (AKA 3 wheeler of death)
1994 Honda TRX300
1999 Honda TRX250

Offline MandEms

  • Full Member
  • *
  • Posts: 89
  • MandEms
Re: Front tire off center, wrong size tire.
« Reply #12 on: August 18, 2014, 04:46:30 PM »

[/quote]

I'm not sure it's supposed to be off center by that much though.  To me it doesn't even look like he'll be able to get the brake pad backing installed without the spokes crashing into it.  That can't be right can it?
[/quote]

That does look a little excessive.  (Hadn't looked at pic) It also looks canted.  I think someone mentioned loosening the fork tubes and making sure they are even.  I had to do this on mine.  Compare the tube cap nut exposure on each side.
Logged
Mark

Offline MandEms

  • Full Member
  • *
  • Posts: 89
  • MandEms
Re: Front tire off center, wrong size tire.
« Reply #13 on: August 18, 2014, 05:10:01 PM »
When I assembled my front wheel, it took me a little while figure out exactly the assembly order for 20, 8, 9, 15.  Check it closely.

Logged
Mark

Offline jamesbekman

  • Hot Shot
  • ***
  • Posts: 380
Re: Front tire off center, wrong size tire.
« Reply #14 on: August 19, 2014, 08:00:57 AM »
Its going to be a couple of days until I can get back into the garage so Ill reply then.

Thanks.

-James
Logged

Offline Goodfella

  • Full Member
  • *
  • Posts: 1
Re: Front tire off center, wrong size tire.
« Reply #15 on: August 19, 2014, 08:47:26 AM »
I have a cb500 build thread on DTT and had the same problem when I put my new wheels on. Make sure that the front axel holders are tightened down to spec. Mine were loosely put on for a temporary mock up and it looked the same as yours does. It's at an angle not off center. Pics of mine before I torqued it down
Logged

Offline cadman

  • Full Member
  • *
  • Posts: 38
Re: Front tire off center, wrong size tire.
« Reply #16 on: August 21, 2014, 07:47:12 AM »
Every bike I have measured has the front wheel centered between the forks.  The front tire must run in the exact same track as the rear tire.  Handling will be adversely effected it they are not in alignment.

The fork sliders are setting on springs and are very securely tied together by the axle (and a bit buy the fender).   The exact up/down position of the fork tubes has no effect on the orientation of the sliders. 

I don't know exactly what the problem is with this setup but I suspect it has to do with the way the axle and spacers has been assembled. 
Logged
Pages: [1]   Go Up
« previous next »