Largest-displacement naked Kawasaki since 2003
1099cc
The Z1100's 1099cc engine makes it the biggest-displacement non-supercharged naked Kawasaki since the original 2003 Z1000. The Zephyr 1100 (1992-2007) and ZRX1100 (1996-2000) both topped out at 1052cc. Bigger than current rivals: Hornet 1000 (1000cc), GSX-S1000 (998cc), Tuono V4 (1077cc).
Same engine as Ninja 1100SX and Versys 1100
Three-bike platform
The 1099cc engine debuted on the 2025 Ninja 1100SX and Versys 1100 SE. The Z1100 takes that engine, adds a heavier flywheel for better midrange, milder cams, and a 4-2-1 exhaust. Three different bikes (sport-tourer, adventure-tourer, naked) share one platform — economies of scale that keep pricing competitive.
Down on power vs rivals — but ahead on torque
134bhp / 113Nm
MCN tested the Z1100 SE at 134bhp — class-trailing on paper (Hornet 1000 makes 155bhp, GSX-S1000 makes 152bhp, Tuono V4 makes 175bhp). But Kawasaki tuned for low/mid-rpm torque (113Nm at 7,600rpm). On UK roads the Z1100 feels strong where you actually use it, regardless of the dyno numbers.
UK gets ONLY the SE version
£12,699 OTR
Unlike the US (which gets a base Z1100 at $11,099 and SE at $14,999), Kawasaki UK is offering only the SE — premium-spec with Öhlins S46 rear shock, Brembo M50 front calipers, steel-braided lines, heated grips. £12,699 vs the £10,999 Honda Hornet 1000 SP — £1,700 premium for Kawasaki badge + Öhlins.
Ride-by-wire makes the electronics meaningful
First time on a Z big-four
Previous Z1000 generations used cable throttles, which severely limits what cornering ABS / traction control / wheelie control / quickshifter / cruise control can actually do. Z1100 finally goes ride-by-wire — bringing the litre-naked Z range up to BMW S1000R / Aprilia Tuono V4 spec.
Reg-rec is still the Kawasaki four-cylinder Achilles heel
30-year pattern
Kawasaki big-bore inline-fours have had charging-system reliability issues since the 90s ZX-9R / ZRX1100 era. Forums report regulator-rectifier failures on Z1000 (all 4 generations), Ninja 1000SX, Z H2. The 2026 Z1100 uses an updated unit but the platform pattern is unbroken.
