Classic and Classy Motorcycles Ltd

1970s Yamaha RT360 360cc Valuation Report

Date: August 2025

Historical Overview

The Yamaha RT360 (also referred to as RT‑2 or RT‑3) was produced in the early 1970s as a utility trail bike for the U.S. market, combining a 351cc two-stroke single cylinder with Autolube oil injection and a 5-speed gearbox. Known for its durability and off-road performance, these models never officially entered the UK market and remain rare and collectible.

Valuation Analysis

UK market values are based on recent auction results and private listings:

• Project Condition: £2,500 – £3,500
  Non-running or requiring mechanical recommissioning. Common for barn-find or incomplete U.S. imports.
• Running but Still Project: £3,500 – £5,000
  Machines that start and move but need electrical, brake or cosmetic work before being usable. e.g. a U.S. import RT360 available from a private UK seller advertised as running but not certified. (View Auction)
• Roadworthy Condition: £5,000 – £6,500
  UK-registered bikes in correct working order with V5C and known history. A UK sale listing from July 2025 asking £5,500 for a restored 1973 RT360 supports this range. (View Listing)
• Restored / Excellent Condition: £6,500 – £8,000+
  Fully recommissioned or refurbished bikes with fresh engine rebuilds, paintwork, and documented provenance.

Factors Affecting Value

• Registration & Documentation: Availability of V5C logbook for UK registration increases value dramatically.
• Condition of Engine & Frame: Original RT frame and engine numbers are most collectible.
• Completeness: Side stand, Autolube system, carburettor and wiring intact influence price.
• Market Rarity: UK demand for vintage Yamaha two-strokes remains strong; supply is limited.

Conclusion

The Yamaha RT360 holds a niche appeal in the UK. Project-level machines still command respectable prices due to rarity. Examples in running and registered condition typically sell between £5,000–£6,000. Exceptionally well restored ones or those with full documentation can exceed £7,000.

All Valuations