FS: 1983 Low Trail Trek 520 - 19" (small)

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Mike Ullmer

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Jul 3, 2025, 11:14:35 AMJul 3
to 650b
Picked this up locally, but its not the right fit for my partner. This is a low-trail Trek 520 from 1983, Serial #050412. 

Main Frame Tubes - Reynolds 501 Chromoly Double Butted Tubing.
Chain/Seat/Fork Stays - Manganese Alloy
Fork Crown - Tange 1124 Fully Sloping
Lugs - Nikko Short Point Seamless
Rear Dropout - Suntour GS Forged

Frame/Fork/HS - $150 plus shipping via Bikeflights or pickup in Minneapolis

I can also toss in the shorty cranks (165) and bb that came with them. 

Frame is in great shape with some nicks here and there, nothing major. These frames make great 650b conversions, I've done a few of these and they always ride great.


Approximate c-t-c measurements in the pics. Geo Chart can be found on the Vintage Trek Website pdf, page 3: https://www.vintage-trek.com/images/trek/83brochurePart1.pdf


Mike Ullmer

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Jul 7, 2025, 11:23:26 AMJul 7
to 650b
Bump and a price drop: $130 plus shipping via Bike flights.

Mike Ullmer

unread,
Jul 23, 2025, 1:44:44 PMJul 23
to 650b
Bump and one more price drop before listing on eBay.

$100 plus shipping via Bikeflights

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