The 850 was Trek's first mountain bike, launched in 1983, according to Reference for Business.
Known components
None recorded yet. Our confirmed sources for this model don't list its parts. If you have a catalogue page or an original spec sheet, please send it in.
What the sources say
| Year | Name · variant | Details | Source |
|---|---|---|---|
| 1983 | 850 | Trek's first mountain bike. | Reference for Business |
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Sources
Last updated 19 October 2026. Every fact on this page comes from one of these.