ER-6 nameplate ran 2006-2016
11 years
ER-6n (naked) and ER-6f (faired, sold as Ninja 650R or 650 in some markets) ran 2006-2016 with two main generations. Renamed Z650 / Ninja 650 for 2017+ generation. Same 649cc engine continues today — 20+ years of the platform.
Why it was renamed
Marketing alignment, 2017
Kawasaki renamed ER-6n → Z650 to align with Z-series naked nomenclature (Z250, Z650, Z900, Z1000). Same engine, same role, sharper styling, modern electronics. The 'ER-6' nameplate is permanently retired but the product continues.
vs Z650 in 2026
Successor with refinements
Z650 (2026): 649cc parallel-twin, 67bhp, 188kg wet, £7,799. ER-6n final (2016): same engine, 67bhp, 205kg wet, £5,799. Z650 has TFT dash option, sharper styling, lighter weight. Same A2-friendly philosophy. Used ER-6 vs new Z650: £3-4.5k vs £7,799.
Real cost trajectory
+1% real (vs Z650)
£4,599 ER-6n in 2006 (£7,700 today) → £7,799 Z650 in 2026. Roughly flat in real terms. Used market in 2026: ER-6n early £1.5-2.8k, ER-6n late £3-4.5k for clean low-mile.
ライダーエイド数 (2006 → 2026)
1-2 → 4-5
ER-6n (2006) had FI and optional ABS. ER-6n (2016) had FI and standard ABS, slipper clutch. Z650 (2026) has cornering ABS, FI, ride modes, full LCD/TFT. Modest evolution — the mid-naked class has stayed minimal on rider aids to keep the price down.
最安の入口
£1.5k
A clean ER-6n from 2006-2010 (Gen-1). 71bhp parallel-twin, A2-friendly with restrictor, very low running costs. Pay attention to fuel pump (early bikes), reg/rec, fork seals. The cheapest mid-cubed Kawasaki on the UK used market.
Why it sold so well
Right price, right time
ER-6n sold huge volumes 2006-2016 — over 100,000 in the UK alone. £4,599 launch price was significantly cheaper than CBR600F's £6,899 successor (CBF600 launched 2004 at £4,899). A2-friendly with restrictor made it the default 'first big bike' for new licence holders. The Bandit 650's natural successor.
