1987 Mongoose Decade
2 verified completed sales · May 2026 – May 2026
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The 1987 Mongoose Decade is a Tier 2 collector bike from Mongoose's peak 1980s freestyle lineup. A genuine period piece with strong brand recognition, the Decade has a dedicated collector following among serious vintage BMX collectors.
Value data updated daily from verified eBay completed listings. Condition and originality classified by AI, reviewed periodically.
- —All-original Mongoose components command a strong premium over replacements
- —Condition is the single largest price variable — documented examples consistently trade at the top end
- —Originality grading matters: ungraded or unverified examples sell well below verified all-original builds
- —Complete builds sell for significantly more than stripped frames
What is a 1987 Mongoose Decade worth?
Based on 2 verified completed sales, the 1987 Mongoose Decade sells for $1,150 to $1,200, with a typical value around $1,175. Condition and originality are the primary price variables — all-original examples consistently command a premium over restored or modified bikes.
What factors affect the value of a 1987 Mongoose Decade?
- All-original Mongoose components command a strong premium over replacements
- Condition is the single largest price variable — documented examples consistently trade at the top end
- Originality grading matters: ungraded or unverified examples sell well below verified all-original builds
- Complete builds sell for significantly more than stripped frames
How is the pricing data sourced?
All pricing data on TrueSpec BMX is sourced exclusively from verified completed eBay sales — not asking prices, not forum estimates. Each comparable transaction is classified by condition and originality before being included in the database, which is updated daily. The low, mid, and high values shown reflect the actual distribution of real transactions.
How do I get a valuation for my specific Mongoose Decade?
The price range on this page shows what the 1987 Mongoose Decade sells for across all condition grades. To find out where your specific bike lands — based on its exact condition, originality, and components — run an Instant Valuation. The valuation compares your bike to the most relevant comparable sold transactions and produces a configuration-specific range in under two minutes.
The market index shows what the model sells for. Your specific bike's value depends on condition, originality, and components — variables that can move the number by hundreds of dollars in either direction. An Instant Valuation gives you the precise figure, not the range.
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