Classic and Classy Motorcycles Ltd

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1970s Honda CB400N Super Dream Valuation Report

Date: November 2025

Historical Overview

Honda’s CB400N Super Dream (c.1978–1980s) was one of the UK’s defining middleweights: affordable, reliable, and learner-friendly. Clean, original machines with correct bodywork and exhausts remain popular with UK buyers. Prices are driven by originality, condition, paperwork, and the quality of any restoration or recommissioning work.

UK Valuation Summary (by condition)

Condition	Estimated Value (GBP)	Evidence (Sold vs Asking, UK)
Project / Restoration Non-running or incomplete; needs major work.	£700 – £1,200	Sold: 1978 CB400N, WB & Sons, June 2024, hammer £1,040 (running but age-related; sets lower bound). Asking: UK dealer/classified projects often £1,200–£1,800, depending on completeness.
Roadworthy / Presentable Running and usable; older paint or light mods acceptable.	£1,600 – £2,600	Sold: 1978 Honda 400 Superdream, Mathewsons, achieved £2,800 (strong price for tidy example). Asking: Typical late-2025 UK asks £1,900–£2,500 for tidy riders (private and dealer).
Restored / Excellent High-quality restoration or very original low-mile with history.	£2,700 – £3,500	Asking: Fully restored or very original examples commonly advertised £2,700–£3,500 in the UK. Note: Fewer recent confirmed UK hammers above c.£2.6k; upper band guided by asking levels and condition quality.

Notes: Original side panels, airbox, correct seat and period exhausts help values. Aftermarket 4-into-1 pipes, resprays in non-factory schemes and missing trims typically reduce prices. A strong history file (invoices, V5C, old MoTs) supports results at the top of each band.

Value Influencing Factors

Originality: Correct bodywork, paint, decals and standard exhausts command a premium.
Mechanical condition: Carburation, charging/ignition, and top-end health influence sale outcomes.
Documentation: Matching numbers, UK registration, and maintenance history lift confidence and price.
Timing: Spring/summer sales and event weekends often see stronger UK bidding than late-year sales.

Conclusion

In the UK as of November 2025, projects for the CB400N Super Dream typically fetch £700–£1,200, while running, presentable riders sit around £1,600–£2,600. A recent strong sale at £2,800 shows what a tidy, well-presented example can achieve. Restored/excellent bikes are commonly asked at £2,700–£3,500; given fewer confirmed recent hammers above c.£2.6k, treat the top band as an estimate guided by current UK asking levels.

Sources (plain text, UK-focused):
WB & Sons — 1978 Honda CB400N Super Dream, sold June 2024, hammer approx £1,040.
Mathewsons — 1978 Honda 400 Superdream, sold, achieved approx £2,800 (strong tidy example).
Car & Classic UK — current late-2025 asking levels for CB400N/Superdream around £1,900–£2,500 for riders; projects often £1,200–£1,800; restored asks up to c.£3,500.
Dealer snapshot — UK dealer example priced around £2,000 for a running CB400N (late 2025).
Note: An Iconic Auctioneers CB400N is scheduled at NEC in November 2025 (upcoming at time of writing); not included in values.

All Valuations

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