Classic and Classy Motorcycles Ltd

Vintage and Classic Motorcycle Importers

1970s Yamaha RD350 Valuation Report

Date: August 2025

Historical Overview

The Yamaha RD350 (1973–1975, air-cooled two-stroke twin) rapidly became a legend for its aggressive power, race-inspired engine, and light handling. In the UK, it's revered by enthusiasts for its raw performance and cultural significance.

UK Valuation Summary (by condition)

Condition	Estimated Value (GBP)	Example External Source
Project / Restoration Non-running or incomplete project.	£3,000 – £4,000	Bonhams estimate for 1973 RD350 (3 miles from new) was £6,000–£10,000 (context for pristine condition).
Roadworthy / Presentable Running and usable examples with wear.	£4,000 – £5,500	H&H Classics – 1975 RD350 sold for £2,812; Car & Classic – 1973 RD350 dealer listing at ~£4,500.
Restored / Excellent Fully restored to high standard, matching numbers.	£5,500 – £7,000	H&H Classics – 1973 RD350 restored sold for £5,520 (July 2022).

Notes: Although auction records are somewhat limited, the high estimate from Bonhams sets premium expectations. Presentable bikes dominate live sale results, while fully restored examples command significant returns.

Value Influencing Factors

Matching Numbers: Frame and engine sequences key for collector-grade examples.
Engine Health: Two-stroke top-end condition, carb tuning, auto-lube system integrity.
Original Paint & Trim: Factory decals and authentic finishes add value.
Documentation: V5C, restoration records, and historical ownership enhance prices.
Cultural Appeal: Known as a '70s two-stroke icon, demand remains high in UK classic market.

Conclusion

In the current UK market, 1970s RD350s vary roughly from £3k–£4k for projects, £4k–£5.5k for running examples, and up to around £7k for top restored machines. Exceptional condition—especially with documented provenance—can command even higher sums.

Sources:
Bonhams estimate – 1973 RD350 with only 3 miles (estimate £6k–£10k);
H&H Classics – 1975 RD350 sold £2,812; 1973 restored example sold £5,520;
Car & Classic – dealer listing for 1973 RD350 priced around £4,500.