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Old 05-17-12, 01:19 PM
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BlazingPedals
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Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed

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Since it's 5 years old or more, current model pics may not match. I believe the Challenge trike looked similar but had/has aero tubing on the cross-tubes and those trademark fat stays. That seems to leave either a TW-Bents, Performer, or possibly a homebuilt.
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