30-Year Arcs / Naked Heritage / Yamaha SR Lineage
Yamaha Japan

Yamaha SR400 / SR500. The 43-year kick-start single-cylinder retro classic.

Yamaha launched the SR500 in 1978 — air-cooled single, 33bhp, kick-start only, retro styling. Killed in 1999 due to Euro emissions. SR400 (399cc, 26bhp) ran 1978-2021, also kick-start only, Japan-only mostly. Killed by Euro 5 in 2021. The original retro before retro was a category — properly cult bike, especially the SR500 in EU.

1996
SR500 · 18 yrs in
2006
SR400 (JDM) · 28 yrs in
2016
SR400 · 38 yrs in
2026
Killed 2021 · 5 yrs gone
Continual audits are underway to verify local pricing for every bike in every market. Apologies for any gaps you see while this is in progress.
1996 SR500 · 18 yrs into mid-life
1996 Yamaha SR500

Yamaha SR500 (1978-1999)

499cc air-cooled SOHC single, kick-start only
Retro styling, traditional ergonomics, Yamaha's unsung classic

499cc air-cooled SOHC single (carbs)
33bhp
33
158
790
ABSFuel injectionTraction controlRide modesAnalogue dialsAir-cooled singleKick-start only
Known issues
  • SR500 — kick-start technique required — all years
  • Reg/rec failure (Yamaha pattern) — all years
  • Carb sync drift — all years
  • Otherwise extremely simple, durable
£3,799
£7,600
£2.5–4.5k
2006 SR400 (JDM) · 28 yrs in
2006 Yamaha SR400

Yamaha SR400 (JDM, 1978-2021)

399cc air-cooled SOHC single, kick-start only
JDM continuation after SR500 killed in 1999, grey-import to UK

399cc air-cooled SOHC single (carbs · then FI 2014+)
26bhp
28
155
790
ABSFuel injection (2014+)Traction controlRide modesAnalogue dialsJDM grey-importKick-start only
Known issues
  • SR400 (JDM) — grey-import paperwork — all UK greys
  • Reg/rec carry-over — all years
  • Otherwise legendarily durable
£3,500 grey
£5,900
£2.8–4k
2016 SR400 · 38 yrs in
2016 Yamaha SR400

Yamaha SR400 (final years)

Same air-cooled single, FI from 2014, ABS from 2018
Final 'Anniversary' editions made in 2021 — last hurrah

399cc air-cooled SOHC single (FI · Euro 4)
23bhp
27
174
790
ABS (2018+)Fuel injectionTraction controlRide modesAnalogue + LCDAir-cooled singleKick-start only
Known issues
  • SR400 final — Euro 4/5 fuel mapping refinement — 2014-21
  • Reg/rec carry-over — all years
  • Otherwise mature platform
£4,300 grey
£5,600
£3.5–5.5k
2026 Killed 2021 · 5 yrs gone
No bike for this era

No SR400/500

Yamaha killed SR400 in 2021 — Euro 5 banned air-cooled simple-FI singles
The kick-start retro classic era is over

STATUS · GONE
GONE
XSR125 £5,200
// 30-Year Delta

What actually changed.

Yamaha's kick-start single-cylinder retro · 1978-2021
43-year production 1978-2021 SR400 ran for 43 model years with relatively minor updates. SR500 ran 1978-1999 (21 years). Both used the same air-cooled SOHC single architecture. Among the longest production runs in motorcycling history. Killed only by Euro 5 emissions impossibility for an air-cooled simple-FI single.
Why kick-start Original character SR400/500 retained kick-start only throughout production — never had electric start option. Required proper kick technique (decompression lever, then full kick). The kick-start was the bike's signature character — riders bought it specifically for the analogue ritual.
Real cost trajectory −27% real (vs XSR125) £3,799 SR500 in 1996 (£7,600 today) → £5,200 XSR125 in 2026. Significantly cheaper in real terms. Modern XSR125 has FI, ABS, more modern aesthetic. Used market in 2026: SR500 £2.5-4.5k, SR400 £2.8-4k early/£3.5-5.5k late for clean low-mile.
Rider aids count (1996 → 2021) 0 → 2 SR500 had nothing. SR400 (2014+) added FI; (2018+) added ABS. Modern XSR125 (2026) has cornering ABS, FI, full LCD. Modest evolution in rider aids — the SR's character was always 'less is more'.
Cheapest way in £2.5k A clean SR500 from 1995-1999 (final years). 33bhp air-cooled single, kick-start only, traditional retro styling. Pay attention to kick-start technique (decompression lever required), reg/rec, carb sync. Properly bombproof — these will run forever.
Why riders love it Pure analogue SR400/500's appeal: no ABS, no electronics, no electric start, no FI (pre-2014), nothing to break or refine. Pure analogue motorcycling. Modern equivalents (Royal Enfield Bullet 350, Royal Enfield Hunter 350, Honda Trail 125) all have electric start now. The kick-start retro is essentially extinct in 2026.
// Sources

Where these numbers come from

Every figure on this page is from a published manufacturer spec sheet or a reputable review publication. No press junkets, no opinions in the spec data. Inflation calculated using Bank of England's CPI tool.

1978-1999 Yamaha SR500 Manufacturer specs · MCN archive · Cycle World
1978-2021 Yamaha SR400 (JDM) Manufacturer press · grey-import dealers
2026 Yamaha XSR125 (closest retro) Yamaha UK 2026 spec sheet · MCN · Bennetts BikeSocial