Febur FE1401 racing aluminium swingarm for Kawasaki ZX-10 R/RR 2021-2026
6.7 k g
02 · Data & docs

The facts.

Technical data
BrandFebur
Part numberFE1401
Material100% aluminium
Weight6.7 kg
Rear axle pin — racing wheel28 mm
Rear axle pin — OEM wheel25 mm
Development programmeWSBK (World Superbike Championship)
FitmentKawasaki ZX-10 R / ZX-10 RR, 2021-2026
Intended useTrack / racing
DescriptionThe whole story▼

Developed in direct collaboration with the World Superbike Championship, the Febur FE1401 racing aluminium swingarm is built for one purpose: extracting every tenth of a second from the Kawasaki ZX-10 R and ZX-10 RR on track. At just 6.7 kg and constructed entirely from high-grade aluminium, it delivers a meaningful reduction in unsprung mass without any compromise to torsional rigidity or structural integrity.

Key Features

  • Race-weight construction: at 6.7 kg, this 100% aluminium swingarm cuts unsprung mass to sharpen turn-in response and rear-end feedback under hard acceleration.
  • WSBK co-developed geometry: the design brief came straight from WorldSBK competition, ensuring the dimensional and dynamic requirements of professional-level racing are fully met.
  • Complete installation kit: the set includes chain tensioners, an OEM wheel bush, a speed sensor bracket and a brake caliper bracket — everything needed to bolt up without hunting for ancillary parts.
  • Racing wheel configuration (28 mm pin): full assembly with chain tensioner sliders, 28 mm axle pin, nut and brake caliper bracket included for dedicated race-wheel setups.
  • OEM wheel configuration (25 mm pin): alternative bush for the standard wheel, supplied with chain tensioner sliders, speed sensor bracket and brake caliper bracket for road-to-track builds.
  • Precise fitment: engineered specifically for the 2021-2026 Kawasaki ZX-10 R and ZX-10 RR — a direct, confidence-inspiring swap for the factory unit.

Built for the Track, Tested at the Top

The FE1401 swingarm is not an aftermarket approximation of a race part — it is the race part. Febur invested its engineering resource alongside WSBK teams to arrive at a geometry and wall-thickness specification that survives the sustained punishment of superbike competition. The result is a component that handles the torque peaks and kerb-strike loads of circuit riding without the weight penalty of a stock cast-aluminium piece.

Two axle configurations are catered for within the kit. Riders running dedicated racing wheels with a 28 mm rear axle pin will find all required hardware included: tensioner sliders, the 28 mm pin, a locking nut and a caliper bracket. Those retaining the original Kawasaki wheel can fit the supplied OEM-compatible 25 mm pin bush alongside the tensioner sliders, speed sensor bracket and caliper bracket. Note that the original Kawasaki brake caliper is not compatible with either configuration — a racing or aftermarket caliper is required.

Performance Advantage

Reducing unsprung and rotational mass at the rear axle has a disproportionately large effect on how a superbike feels and behaves. With the FE1401 fitted, the ZX-10 R/RR responds more crisply to suspension adjustments, exhibits cleaner rear-end stability under braking and accelerates out of corners with less rotational inertia working against the drivetrain. For riders pushing towards lap-time gains, this is one of the most mechanically direct improvements available.

Fitment & Compatibility

This swingarm is designed exclusively for the following models:

  • Kawasaki ZX-10 R — model years 2021, 2022, 2023, 2024, 2025, 2026
  • Kawasaki ZX-10 RR — model years 2021, 2022, 2023, 2024, 2025, 2026

Important: the original Kawasaki brake caliper is not compatible with this swingarm. An aftermarket or racing brake caliper must be used. Verify axle pin diameter against your wheel choice before ordering.

Specifications

  • Part number: FE1401
  • Brand: Febur
  • Material: 100% aluminium
  • Weight: 6.7 kg
  • Rear axle pin options: 28 mm (racing wheel) / 25 mm (OEM wheel)
  • Development programme: WSBK (World Superbike Championship)
  • Fitment: Kawasaki ZX-10 R / ZX-10 RR, 2021-2026
  • Intended use: track / racing
What's includedEverything in the box▼
  • 1x Febur FE1401 racing aluminium swingarm
  • Chain tensioner sliders
  • OEM wheel bush
  • Speed sensor bracket
  • Brake caliper bracket
  • 28 mm axle pin with nut (racing wheel configuration)
FitmentWhich bikes this fits▼
  • Kawasaki ZX-10 R/RR (2021–2026)
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