Tri-Bike (3531-1) is a LEGO LEGO set from 1998 valued at $5.11 on BrickLink. It contains 13 cataloged parts. This set has been retired and is only available on the secondary market.
Tri-Bike sells for an average of $5.11 used and $28.69 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness. Missing minifigures or key parts will lower the value.
Yes, Tri-Bike was released in 1998 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.
Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.
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