It doesn't sound like I made it up?
Cool...
Cool...
So I want a BJ74...
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- #82
That's kinda what I figured, I assume the lug nuts would be different between the two? Better hunt down another pair.
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Even BS can sound convincing if you say it with authority. It's worked for me for decades.It doesn't sound like I made it up?
Cool...
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- #84
1978HJ45, what offset are yours, 8 or 10?
S
Sorry, I am out of the country until Friday night but can check this weekend.
Oldtoy has -20 offset OEM alloys
Steel inserts?
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- #88
Interesting, what is the correct offset? I just figured it be the same as the 80. And why is it Toyota had to make it difficult to swap wheels around
I was confused as well when I got these rims, Im still not sure what the exact offset is, some tyre shop told me our cruiser's are o offset, but that must be with standard rubber , but to be honest I'm still no wiser, all I know is -20 does not rub anywhere.
"Offset" refers to the measurement relationship between the wheel mounting surface and the extreme inside edge of the wheel rim.
For example (I'll attempt to explain as clearly as I can, good luck with that
) an 80 Series 16x8 inch wheel will have a back space of 4.5 inches and an offset of zero. How is it possible, you may ask, that an 8 inch wheel with zero offset can possibly have 4.5 inches of backspace?
Rim or wheel width is stated in "bead-to-bead" measurement, meaning that the distance between the inner flanges of the wheel (where the tire beads seat) is "X" number of inches. Back-space is calculated based on the "flange-to-flange" dimensions of the wheel, in other words the outside measurement.
In virtually all cases the bead-to-bead measurement of a wheel will be one inch narrower than the flange-to-flange measurement.
Considering the above example, the 16x8 inch wheel will have a flange-to-flange measurement of 9 inches. The back space of 4.5 inches indicates that the wheel mounting surface will be exactly centered in relation to the centerline of the mounted tire. Wheels with a posititive offset move the centerline toward the inside of the vehicle and wheels with a negative offset (the cool and best looking ones.. ) move the centerline toward the outside of the vehicle.
The 8mm and the 10mm offset wheels discussed earlier will have positive offsets of 8mm and 10mm (more tire in than out) respectively.
Capiche?
For example (I'll attempt to explain as clearly as I can, good luck with that
) an 80 Series 16x8 inch wheel will have a back space of 4.5 inches and an offset of zero. How is it possible, you may ask, that an 8 inch wheel with zero offset can possibly have 4.5 inches of backspace?Rim or wheel width is stated in "bead-to-bead" measurement, meaning that the distance between the inner flanges of the wheel (where the tire beads seat) is "X" number of inches. Back-space is calculated based on the "flange-to-flange" dimensions of the wheel, in other words the outside measurement.
In virtually all cases the bead-to-bead measurement of a wheel will be one inch narrower than the flange-to-flange measurement.
Considering the above example, the 16x8 inch wheel will have a flange-to-flange measurement of 9 inches. The back space of 4.5 inches indicates that the wheel mounting surface will be exactly centered in relation to the centerline of the mounted tire. Wheels with a posititive offset move the centerline toward the inside of the vehicle and wheels with a negative offset (the cool and best looking ones..
) move the centerline toward the outside of the vehicle.The 8mm and the 10mm offset wheels discussed earlier will have positive offsets of 8mm and 10mm (more tire in than out) respectively.
Capiche?
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Cdan , very good description, although you got your negative and positive offset descriptions back to front
easy to do,.... I do agree that the neg offset do look the coolest, all the die hard jap owners with JDM rigs, and sports cars have the fat deep dish rim, very cool
Just to clarify I was referring to my confusion one what is the exact offset for a 70 series ?? If you update us on that spec, you will redeem yourself for putting your wheels on back to front
easy to do,.... I do agree that the neg offset do look the coolest, all the die hard jap owners with JDM rigs, and sports cars have the fat deep dish rim, very cool Just to clarify I was referring to my confusion one what is the exact offset for a 70 series ?? If you update us on that spec, you will redeem yourself for putting your wheels on back to front
Personal redemption is not in the cards so I must seek alternate pennance.
You present a very simple question. The complexity lies in getting to the simplicity. The parts catalogs do not specify offset, only diameter and width. As a result our "detective" whomever that may be, would need to take his tape measure and precision straight-edge to a vehicle with KNOWN original wheels and measure them to see what the result is.
You present a very simple question. The complexity lies in getting to the simplicity. The parts catalogs do not specify offset, only diameter and width. As a result our "detective" whomever that may be, would need to take his tape measure and precision straight-edge to a vehicle with KNOWN original wheels and measure them to see what the result is.
Perhaps this may help further explain rims for you Dan:
Like I said, positive offset moves the wheel in, negative offset moves it out.
An interesting read......Go to the last paragraph for the meat and potatoes.
http://mgaguru.com/mgtech/wheels/wl200.htm
An interesting read......Go to the last paragraph for the meat and potatoes.
http://mgaguru.com/mgtech/wheels/wl200.htm
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- #95
[QUOTE="cruiserdan, post: 9269728, member: KNOWN original wheels and measure them to see what the result is.[/QUOTE]
That may be the hard part, seem like most of them make it here with some type of aftermarket ones .
That may be the hard part, seem like most of them make it here with some type of aftermarket ones .
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- #96
[QUOTE="cruiserdan, post: 9269728, member: KNOWN original wheels and measure them to see what the result is.[/QUOTE]
That may be the hard part, seem like most of them make it here with some type of aftermarket ones .
That may be the hard part, seem like most of them make it here with some type of aftermarket ones .
Up until I saw this diagram, I thought negative and positive offset was referring to my wife's moods.
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Locally, my choice for penance would be Panulirus Argus, 7.30 and 31., with an IPA or 2.
So, I have in front of me stock original European spec. wheels. But the "original" offset is meaningless, if you don't have original factory rollers, is that right?
Wheel offset is good data no matter what size shoe you put on it. That number will remain constant. Offset to the edge of the Tyre (did I spell that OK for you? ) sidewall will of course depend on the section width.
) sidewall will of course depend on the section width.
Most rims would have the offset stamped on rim, anyone got some originals lying around, "..........offset would be relative to size of rubber on them on whether they would fit, correct???? Skinnier the rubber more positive offset could be used, fatter the rubber more negative offset required, eg I have -20 15x7 rim with 31x 10.5 x15 bfg which gives me less than an inch clearance from tie rod