Classic and Classy Motorcycles Ltd

Vintage and Classic Motorcycle Importers

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1970s Harley-Davidson MT-350 / MT-500 Valuation Report

Date: August 2025

Historical Overview

The MT-350 and MT-500 were lightweight military enduro bikes produced in small numbers during the 1970s: the 350 cc units were imported Aermacchi-based models, while the 500 cc versions (MT-500) were Armstrong-assembled for military use. In the UK, survivors are rare and usually come from ex-forces surplus or niche ownership.

UK Valuation Summary (by condition and variant)

Condition	MT-350 (250/350 cc)	MT-500 (500 cc military)	Example External Source
Project / Restoration Non-running, incomplete, military panels may be missing.	£1,800 – £2,500	£2,500 – £3,500	Classified ad MT-350 in “for parts” condition listed at ~£2,000.
Roadworthy / Presentable Running and presentable; Army paint and accessories intact.	£3,500 – £5,000	£5,000 – £6,500	Car & Classic – 1970s military MT-500 listed for £5,995.
Restored / Excellent Full restoration to correct spec, with military kit or clean civilian conversion.	£5,500 – £7,000	£7,500 – £9,000	Bring-a-Trailer – MT-500 US military spec sold USD $9,200 (~£7,400).

Notes: Supply-weight spreads reflect the MT-500’s higher military appeal and scarcity. MT-350 pricing is based on few UK classifieds; the MT-500 ceiling uses recent international military sale data converted to GBP.

Value Influencing Factors

• Original equipment & military fittings: Gun racks, panniers, lights, rack, paint retain value on MT-500s.
• Rarity & military provenance: Proper military paperwork or service history enhances price.
• Condition: Twin-shock suspension, engine condition, and frame originality are critical.
• Documentation: Military demob paperwork or import details help verify originality.
• Market demand: Strong UK niche demand for military trail bikes; rare listings sell quickly.

Conclusion

In the UK market, expect £1.8k–£2.5k for MT-350 projects, £3.5k–£5k for runners, and up to £7k restored. The MT-500 commands a premium: £2.5k–£3.5k project, £5k–£6.5k presentable, and restored examples reaching £7.5k–£9k.

Sources (non-link references):
Classified advert – MT-350 for parts at ~£2,000;
Car & Classic – military MT-500 listed at £5,995;
Bring-a-Trailer – Harley MT-500 US military spec sold USD $9,200 (~£7,400) in Feb 2024.

All Valuations