Accossato closed steering stem nut SC001 for Yamaha FZ8, black version⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandAccossato
TypeSteering stem nut, closed
Part numberSC001
ThreadM28x1
MaterialAluminium, anodised
ColoursBlack, silver, titanium, red, blue, gold, green, orange
Pieces per box1
FitmentYamaha FZ8 (2010–2016)
Road approvalNone documented, track use only
CheckCompare with the original part before ordering
DescriptionThe whole story▼

The closed version of Accossato's steering stem nut covers the top of the steering stem completely, giving the Yamaha FZ8's headstock a solid finish rather than the open centre of the other version. Thread M28x1, machined from aluminium and anodised, it is listed for the FZ8 built from 2010 to 2016 and performs the same job of holding the top yoke onto the steering stem.

Key Features

  • Closed steering stem nut for the Yamaha FZ8, 2010 to 2016
  • One nut per pack
  • Thread M28x1
  • CNC-machined aluminium, anodised
  • Eight colours: blue, green, black, orange, red, silver, titanium, gold
  • Fully covers the top of the steering stem
  • No German ABE on file; for track use

Construction and Material Quality

This closed nut shares its starting point with the open version: aluminium, machined on CNC equipment, then anodised so the colour sits within the metal itself. Where the open nut leaves the steering stem showing through its centre, the closed cap runs solid across the top, with no gap once it is fitted. Accossato cuts the thread to M28x1 for the FZ8 and states the part fits the applications it lists, securing the top yoke onto the steering stem in the same way the open version does.

A Closed Nut for the FZ8

Where the open nut shows the end of the steering stem through its centre, this closed version presents a single unbroken face at the top of the yoke, a look some FZ8 owners prefer once they have already tidied up other small parts of the cockpit. It does not change how the fastener works, only how it reads at a glance, which is often enough reason on its own for a part that sits in such a visible spot. Fitting and torque settings at the headstock should still come from the motorcycle's own workshop manual.

Fitment and Compatibility

Accossato's listing for the FZ8, built from 2010 to 2016, puts this closed nut at thread M28x1. The open equivalent sits under code SA001, and the FZ8's swingarm carries its own pair of Accossato stand bobbins, sold without a rubber sleeve as ST001 or with one as ST006.

Road Approval

No German ABE or type-approval paperwork is on file for this nut, so it is listed for racing and competition use rather than for road registration.

Scope of Delivery

The pack contains one closed steering stem nut in the single colour chosen when ordering.

Specifications

  • Type: Steering stem nut, closed
  • Part number: SC001
  • Thread: M28x1
  • Material: Aluminium, anodised
  • Colours: Black, silver, titanium, red, blue, gold, green, orange
  • Pieces per box: 1
  • Fitment: Yamaha FZ8 (2010–2016)
  • Road approval: None documented, track use only
  • Check: Compare with the original part before ordering
What's includedEverything in the box▼
  • 1x Accossato closed steering stem nut
FitmentWhich bikes this fits▼
  • Yamaha FZ8 (2010–2016)
  • BMW S1000RR (2009–2017)
  • Kawasaki NINJA H2 (2018–2019)
  • Kawasaki ZX-10 R (2004–2019)
  • Kawasaki ZX-6R (2005–2019)
  • Suzuki GSX-R 1000 (2005–2019)
  • Suzuki GSX-R 600 (2006–2017)
  • Suzuki GSX-R 750 (2006–2017)
  • Suzuki GSX-S1000 (2015–2018)
  • Yamaha MT-10 (2016–2019)
  • Yamaha R1 (1998–2019)
  • Yamaha R1M (2015–2019)
  • Yamaha R6 (2006–2017)
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08 · Paddock

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