You might want to try
BAT, Inc. . They sell the ST200 wheels, and might be able to procure ST250 wheels. Worth a call, I think.
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Andrew Morris
'99 SE Zetec ATX
Toreador Red/Greystone
K&N, badgeless, Knauberized
FlowTech Red Hot res, Flowmaster 40-series
http://www.mindspring.com/~drumnut
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[This message has been edited by Drumnut (edited August 26, 2000).]