Classic and Classy Motorcycles Ltd

Vintage and Classic Motorcycle Importers

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1970s Harley-Davidson X-90 “Shortster” Valuation Report

Date: August 2025

Historical Overview

The Harley-Davidson X-90 (“Shortster”) was produced between 1973–75 by AMF/Aermacchi, succeeding the 65cc MC-65. It’s an infrequently seen little two-stroke with a fold-down bar and cult classic status in the UK and beyond.

UK Valuation Summary (by condition)

Condition	Estimated Value (GBP)	Example External Source
Project / Restoration Non-runner or incomplete; few UK sales.	£1,200 – £1,800	Bonhams estimate earlier sale of unrestored X-90 at £1,955.
Roadworthy / Presentable Running, original patina, usable rider.	£2,500 – £3,500	Iconic Auctioneers sold 1975 X-90 unrestored for £3,292 (May 2025).
Restored / Excellent Fully restored with matching details.	£4,000 – £5,500	Bring-a-Trailer US sale for 1973 X-90 at USD $12,500 (~£10,100).

Notes: UK market is thin—project estimates rely on modeling from Bonhams and classified listings. Roadworthy and restored ranges reflect the 2025 auction result and premium international comparables.

Value Influencing Factors

• Original paint & details: Factory tanks, decals, folding bar increase appeal.
• Rarity: Only ~1,600 made; UK survivors are uncommon.
• Documentation: V5, auction reports, MOTs restore buyer confidence.
• Rideability: Two-stroke tune, tire/rim condition, light weight matter.
• Presentation: Correct bars, controls and finish help restored valuation.

Conclusion

UK market pricing for X-90 Shortsters in 2025: Projects around £1.2k–£1.8k; rider-quality ~**£2.5k–£3.5k**; fully restored examples may exceed **£4k–£5.5k**, reflecting rarity and solid collector interest.

Sources (non-link references):
Iconic Auctioneers – 1975 X-90 sold for £3,292 (May 2025);
Bonhams estimate – unrestored X-90 ~£1,955 (earlier sale);
Bring-a-Trailer – 1973 X-90 sold USD $12,500 (~£10,100) at US auction.

All Valuations