HOW FAST ARE THEY? MR. KNOW-IT-ALL

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Ron Lawson

by: Ron Lawson

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Dear Mr. Know-It-All, What is the actual top speed of a modern 450 motocross bike? I’ve read on websites and YouTube comments claiming a KTM 450SXF is capable of 123 mph in stock form. I can’t see that being possible, as these bikes are geared to race on an MX or SX track, not drag raced. Could you please clarify? Ken via mrknowitall@hi-torque.com Well, Ken, while I don’t have the exact numbers, around the 120-mph mark is in the hunt for a top-speed run on a properly geared 450. The real issue comes with the gearing, setup and traction. About 10 years ago we were out with Robby Bell, wh ...

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