IMA Special Parts Racing STK top clamp for Yamaha YZF-R6 RJ27, 7075 Ergal aluminium⟲ 360° — drag me
02 · Data & docs

The facts.

Technical data
BrandIMA Special Parts
ModelRacing STK Top Clamp
Material7075 Ergal aluminium
BoltsTitanium
Adjustable offset24 mm – 32 mm
Ignition barrel mountYes (STK variant)
Engineering methodFEM (Finite Element Method)
FitmentYamaha YZF-R6 RJ27 (2017–2026)
DescriptionThe whole story▼

Engineered from the ground up for the Yamaha YZF-R6 RJ27 (2017–2026), the IMA Special Parts Racing STK top clamp combines race-proven heritage with a precision finish that stands apart on road and circuit alike. Machined from 7075 Ergal aluminium and calculated using FEM (Finite Element Method) technology, it delivers the structural rigidity, featherlight mass and steering accuracy that define truly purposeful chassis hardware.

Key Features

  • FEM-calculated construction ensures maximum rigidity and consistent steering precision under hard braking and high-speed cornering loads.
  • 7075 Ergal aluminium billet — one of the strongest alloys used in aerospace and motorsport — keeps unsprung and rotational mass to a minimum without sacrificing durability.
  • Adjustable offset from 24 mm to 32 mm allows precise chassis geometry tuning to match rider preference, track configuration or tyre choice.
  • STK variant retains the original ignition barrel mount, making it fully road-legal and ideal for track-day machines that need to stay street-registered.
  • Titanium bolts throughout — corrosion-resistant, ultralight and entirely in keeping with the quality of the clamp itself.
  • Improved braking stability and sharper front-wheel feedback transform corner entry confidence on both road and circuit.

Design, Finish and Heritage

IMA Special Parts has built its reputation supplying top-level Italian Superbike and club racing teams with components that perform as well as they look. The Racing STK top clamp carries that lineage into a beautifully finished piece offered in three distinct colours — black, titanium and aluminium — each machined to a standard that makes the part a visual centrepiece rather than a hidden upgrade. The anodised surface is hard-wearing and resistant to fuel, brake fluid and the everyday abrasion of paddock life, ensuring the clamp looks as purposeful after a season of track days as it did on first fitment.

Performance on Road and Track

Replacing the factory top clamp with the IMA STK unit tightens the mechanical connection between fork legs and steering stem, reducing flex under braking and translating more of the fork's vertical compliance into usable feedback. Riders consistently report a more direct turn-in character and a greater sense of front-end grip — not because the geometry has changed dramatically, but because the chassis is communicating more accurately. The adjustable offset (24–32 mm) means that geometry can be dialled in to suit everything from fast, flowing road passes to tight, technical circuit layouts.

Fitment and Compatibility

This top clamp is a direct, dedicated fitment for the following model:

  • Yamaha YZF-R6 RJ27 (2017–2026)

The STK variant includes an ignition barrel housing, making it the correct choice for any R6 that retains the standard ignition key — whether used on the road or entered in a production-based racing class.

Specifications

Specification Detail
Brand IMA Special Parts
Model Racing STK Top Clamp
Material 7075 Ergal aluminium
Bolts Titanium
Adjustable offset 24 mm – 32 mm
Ignition barrel mount Yes (STK variant)
Engineering method FEM (Finite Element Method)
Fitment Yamaha YZF-R6 RJ27 (2017–2026)
FitmentWhich bikes this fits▼
  • Yamaha YZF-R6 RJ27 (2017–2026)
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