By the time Harley-Davidson introduced the Aermacchi-built SX, it was already outdated from a performance standpoint. They took the SS street bike, gussied it up with a few parts to make it a street scrambler, and the SX was born. Like most of the street scramblers of the day, it had off-road pretensions without real off-road performance. Despite all that, this example feels like a winner as it’s got less than 600 original miles and it looks fantastic thanks to a restoration.
The 344cc air-cooled single produced 25 horsepower at 7,000 rpm, enough to get the SX350 up to 90 miles per hour. Dry weight was 312 pounds, which was much heavier than competition like the Bultaco Sherpa 350 at 211 pounds. The ’72 model got some updates, but it didn’t matter. By 1975, the SX was dead. For more on the Sprint SX, check out this excellent profile on Motorcycle Classics.
Everything is said to work on this example, and there are no leaks. The seller does not disclose when the restoration occurred and what work was performed, but you can suss that out when you find this SX350 for sale in Boise, Idaho for $6,000 here on Craigslist.
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