I have a simple question are Weld, Keizer, and Sanders wheel centers and inner/outer half's interchangeable w/ each other? Will the bolt pattern all line up....

Yes but the wheel sizing is very different, a 4'' weld half to a 4'' keizer half is almost 3/4 of an inch different. For example A weld direct mount front wheel two 3'' halfs equals very close to 6 inches a keizer direct mount two 3'' halfs equals a little over 5''.
But yes the do interchange.
Kenny

Ok, but the wheel center is the same bolt pattern then?

yea the centers are but the beedlocks are not, which realy stinks.

Ok thanks, guys...

Another Question...

Does anyone know if the the Hyper Deluxe wheel centers will work on a RTS front and rear axle?

I want to buy some new wheel centers for my car and seen a post on here from Mike about there new wheel centers.... I was looking at them on hyper's website and they claim they are 30% stronger and lose about 1 pound... The other good part is they are cheaper than the Weld centers...

i.e.
http://www.hyperracing.com/browse.asp?id=830&classid=6&catid=448
Part# 25-531
Part# 25-535

Yes they do the hyper centers just use a tappered bearing, which rts do not but they will fit and the rear axle as long as you buy for the same axle you you hace example 1 3/4'' or 2'' axle we have a set of front hyper hubs we might be getting rid of at the end of the year.
Kenny

where does it say they are lighter and stronger?

where does it say they are lighter and stronger?

Right on Hypers website...

i.e.
"Hyper Racing is the only micro sprint manufacturer to offer forged technology in our components. Forging is stronger because the metal molecules are aligned parallel to the surface of the part instead of perpendicular to it. This increases the strength of the part by 30% over part made from billet aluminum. The reason this technology is not used much on micro parts is because of the initial costs involved. We had to by a minimum of 2000 pieces of each part forging and invest $5000 in dies. We knew the investment was worth it to get a better quality part."

"Expect 1 Pound Lighter if change all 4"