1984 Mongoose Supergoose
3 verified completed sales · Mar 2026 – Apr 2026
Sign in free to unlock the low and high values.
The 1984 Mongoose Supergoose is a Tier 2 collector bike with strong period credentials. A genuine race and freestyle bike from Mongoose's peak 1980s production, it maintains consistent auction activity.
Value data updated daily from verified eBay completed listings. Condition and originality classified by AI, reviewed periodically.
- —All-original Mongoose components command premium over replacements
- —Frame condition is the primary value driver
- —Complete bikes sell for materially more than stripped examples
- —Earlier production years are generally more desirable
What is a 1984 Mongoose Supergoose worth?
Based on 3 verified completed sales, the 1984 Mongoose Supergoose sells for $400 to $1,300, with a typical value around $883. 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 1984 Mongoose Supergoose?
- All-original Mongoose components command premium over replacements
- Frame condition is the primary value driver
- Complete bikes sell for materially more than stripped examples
- Earlier production years are generally more desirable
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 Supergoose?
The price range on this page shows what the 1984 Mongoose Supergoose 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.
Newsletter
Get Mongoose Supergoose market updates
Monthly pricing intelligence for the Mongoose Supergoose and other tracked vintage BMX models. Real sold data, no noise.
No spam. One email a month. Unsubscribe any time.