LR90 Posted August 24, 2006 Share Posted August 24, 2006 rim spec width offset backspacing SWB 5x16x46 5 -1.8 4.8 LWB 5.5x16x33 5.5 -1.3 4.5 WOLF/130 6.5x16x20 6.5 -0.8 4.5 Disco 7x16x33 7 -1.3 5.3 8 Spoke 7x16x12 7 -0.5 4.5 And because a picture explains it so much better With thanks to Landrover598 who is the originator of this really useful sketch. Quote Link to comment Share on other sites More sharing options...
Steve Hiatt Posted August 25, 2006 Share Posted August 25, 2006 I think they are all positive offset. I have Disco steels as +30mm offset. A couple of years ago I phoned a number of 8 spoke suppliers to ask what offset their wheels were, not one knew! Quote Link to comment Share on other sites More sharing options...
LR90 Posted August 25, 2006 Author Share Posted August 25, 2006 Well quick trawl for a definition of offset seems to confirm that there is no clear definition. In fact they seem pretty equally split between the two options. Think I'll stick with backspacing. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted August 25, 2006 Share Posted August 25, 2006 Think I'll stick with backspacing. Your private life is your own business, Trev Mo Quote Link to comment Share on other sites More sharing options...
LR90 Posted August 25, 2006 Author Share Posted August 25, 2006 I might have to go back and edit that. Quote Link to comment Share on other sites More sharing options...
Ex Member Posted August 25, 2006 Share Posted August 25, 2006 Your doing it the math way which is not correct. Backspacing measures to the outside of the wheel lip. Wheel width measures to the bead contact surface. Becuase of this, you need to add 1/2" to 3/4" to all of your backspacing numbers. I can't find a greta picture, but this sort of shows it. See how wheel width and backspacing measure to different locations. Quote Link to comment Share on other sites More sharing options...
LR90 Posted August 25, 2006 Author Share Posted August 25, 2006 Thanks for pointing that out John. I've edited the post to add nominal 0.5" to all backspacings. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.