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1970s Triumph T100R Daytona 500 cc Valuation Report

Date: September 2025

Historical Overview

The 1970s Triumph T100R Daytona 500 cc was a high-compression, small-capacity twin built specifically for racing and performance, modelled after the special-edition bikes Triumph raced at Daytona, USA. In the UK, it continues to attract those after a bit of period performance heritage and rarer factory details.

UK Valuation Summary (by condition)

Condition	Estimated Value (GBP)	Example External Source (plain text)
Project / Restoration Non-running, incomplete, or requires full recommission.	£2,500 – £3,800	Britbike forum discussion: a running, original but tatty example quoted at ~£2,500. ([Britbike forums])
Roadworthy / Presentable Running, tidy examples with minor wear.	£4,000 – £6,000	Car & Classic listing: 1974 Daytona T100R (matching numbers) offered at ~£5,995 currently. ([Car & Classic])
Restored / Excellent Concours-quality restoration or very original low-mile survivors.	£6,500 – £8,500	Classic.com UK comps (USD): equivalent models valued $6,550–20,300 → approx £5k–15k; UK upper restored premium estimated here. ([Classic.com])

Notes: UK-specific sales for the Daytona T100R are limited. Values are derived from recent classified listings and owner discussions, supported by broader market comps. Matching-numbers and originality remain key value factors.

Value Influencing Factors

Matching numbers & trim: Correct tank, carburettors, fairing badges and seat list make a difference.
Mileage & condition: Low-mile original bikes command premiums; projects are still affordable.
Documentation: V5C, service records, any period race history increase desirability.
Market visibility: Rare visibility but strong interest from classic and period performance collectors.

Conclusion

As of September 2025 in the UK, Triumph Daytona T100R values typically run around £2.5k–3.8k for projects, £4k–6k for tidy riders, and £6.5k–8.5k for restored or concours-level examples. Rarity and period performance heritage are driving the upper end.

Sources (plain text):
Britbike forum — “~£2,500 OK price for running original but tatty bike” (1970s Daytona).
Car & Classic — 1974 Daytona T100R matching numbers listed at ~£5,995 (UK).
Classic.com — comps of 1970 Daytona in USD $6,550–20,300 (~£5k – £15k) as a broader value benchmark.