Street Motorcycles and Parts Discussion, Questions and answers that pertain to street motorcycles and parts can be found in this forum.

what size tire to use?

Old 11-05-2004, 05:31 PM
  #1  
Guy
Biker
Thread Starter
 
Join Date: Oct 2004
Location: Fentress, Tx.
Posts: 16
Default what size tire to use?

What is the biggest rear wheel I put on my 89 sportster ? It has a 130 on it now and want to put a wider one on it. It still has the chain drive.
Guy is offline  
Old 11-05-2004, 10:04 PM
  #2  
Biker
 
Join Date: Aug 2003
Location: USA, TN
Posts: 120
Default

I am really not sure about an 89. I have a 140 on my 97. It is a tight fit but it works. A 140, i think, is about a 1/2" wider than a 130. Check and see how much clearance you have. Also if you have spoke wheels make sure that they are true or the run out my cause you trouble when you go bigger.
DILLIGAF is offline  
Old 12-10-2004, 10:28 AM
  #3  
Biker
 
Join Date: Dec 2004
Posts: 13
Default

Guy, you can run a 150 tire on it with the help of an offset sprocket kit. Basically it is a front sprocket that is offset 3/16" away from the transmission and a 3/16" spacer that goes between the wheel and rear sprocket. V-TWIN sells them and I believe J&P sells them also. The wrinkle comes in as to whether the fender is wide enough to accept the tire. Also, 150 is as wide a tire as you can safely run on a stock width rim. Hope this helps.
motorhead1 is offline  
Old 12-15-2004, 07:02 PM
  #4  
Guy
Biker
Thread Starter
 
Join Date: Oct 2004
Location: Fentress, Tx.
Posts: 16
Default

Thanks for the help, so your not sure if the fender is wide enough for the 150 ? Do these offset sprockets put a strain on the shaft or bearing sence there sticking out further ? Just wondering...................
Guy is offline  
Old 12-16-2004, 11:59 AM
  #5  
Biker
 
Join Date: Dec 2004
Posts: 13
Default

As far as strain on the sprocket shaft and or bearing, no. You're only talking 3/16" or .1875" which is about the diameter of a wheel spoke. I measured inside a fender I have lying around about your year model and it measures 170mm which leaves you 10mm on each side. All your bolts will have to be installed from the inside of the fender and use acorns on the outside. Plus you're going to have to consider clearance for the wires.
motorhead1 is offline  
Old 12-16-2004, 07:55 PM
  #6  
Guy
Biker
Thread Starter
 
Join Date: Oct 2004
Location: Fentress, Tx.
Posts: 16
Default

Cool man , Thanks again for all the help, I'll let you know what I decide. I was thinking of going with a fat bob fender, does this chande anything, or are we still about the same ? Thanks .........................
Guy is offline  
Old 12-17-2004, 09:41 AM
  #7  
Biker
 
Join Date: Dec 2004
Posts: 13
Default

It won't make any difference. You'll have the same amount of space between the fender supports either way.
motorhead1 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HDLVR
Street Motorcycles and Parts
8
05-20-2010 05:17 AM
PiperAlpha
Street Motorcycles and Parts
1
04-21-2009 12:09 AM
thamil
Parts For Sale
1
12-17-2008 11:43 AM
Guy
Street Motorcycles and Parts
10
09-19-2006 07:09 PM


Thread Tools
Search this Thread
Quick Reply: what size tire to use?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.