LighTech Rear Axle Nut Yamaha YZF-R7 (2021-2026) D003 - Anodised Ergal 7075
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Securing your rear axle to the correct torque specification is a non-negotiable safety step, and the LighTech D003 rear axle nut gives you the confidence that the component doing that job is as engineered and reliable as the bike beneath you. Machined from aerospace-grade Ergal 7075 aluminium and rated to a maximum torque of 140 Nm, it is built specifically for the Yamaha YZF-R7 (2021–2026) to deliver a precise, secure fit on every installation — whether you are heading to the track or setting off for a weekend road ride.
Key Features
- Ergal 7075 aerospace aluminium construction: exceptional tensile strength combined with a significant weight saving over a standard steel nut
- CNC precision machining: each nut is turned to exact tolerances, guaranteeing a flush, rattle-free fit on the M24x1.5 rear axle thread
- Anodised finish: the hard-anodised surface resists corrosion, oxidation and track-day heat cycles, keeping its appearance over thousands of kilometres
- Maximum tightening torque of 140 Nm: a clearly rated safety ceiling that lets you torque to spec with full confidence
- Dual-purpose design: equally at home on track days and public roads, combining motorsport precision with everyday practicality
- Available in five anodised colours — black (D003NER), gold (D003ORO), red (D003ROS), silver (D003SIL) and cobalt (D003COB) — to complement your R7's livery
Engineering and Build Quality
LighTech developed the D003 using Ergal 7075, the same high-strength aluminium alloy series used in aircraft structural components. The material's superior strength-to-weight ratio means you lose mass without sacrificing the integrity a safety-critical fastener demands. The hexagon drive diameter of 30 mm is dimensioned for standard axle spanners, so fitment requires no special tooling beyond what any paddock or garage will carry.
The anodised surface treatment is not merely cosmetic. Hard anodising converts the outer layer of the aluminium into a ceramic-like oxide that is significantly harder than the bare alloy, protecting the nut against the stone chips, brake dust and road chemicals that attack exposed components. The result is a fastener that looks as good after a season of use as it did out of the box.
Road and Track Use
On track, every gramme saved at the unsprung rear wheel improves response and reduces rotational inertia — a marginal but measurable gain that LighTech's OEM-replacement philosophy is designed to deliver. The 140 Nm torque rating provides a clear, published maximum so mechanics and riders can work to the correct specification without ambiguity, making this nut a responsible choice as well as a performance one. On the road, the corrosion-resistant anodised finish means it handles daily exposure without the rust or surface degradation that affects lesser aftermarket hardware.
Fitment and Compatibility
- Yamaha YZF-R7 (2021–2026)
Thread: M24x1.5 — verify your axle specification before ordering if the bike has been previously modified.
Specifications
| Part Number | D003 (D003NER / D003ORO / D003ROS / D003SIL / D003COB depending on colour) |
|---|---|
| Thread | M24x1.5 |
| Outer Diameter | 39 mm |
| Height | 17.5 mm |
| Hexagon Drive Diameter | 30 mm |
| Maximum Tightening Torque | 140 Nm |
| Material | Ergal 7075 aluminium |
| Surface Treatment | Hard anodised |
| Fitment | Yamaha YZF-R7 (2021–2026) |
| Brand | LighTech |
|---|---|
| Part Number | D003 |
| Material | Ergal 7075 aluminium |
| Thread | M24x1.5 |
| Outer Diameter | 39 mm |
| Height | 17.5 mm |
| Hexagon Drive Diameter | 30 mm |
| Maximum Tightening Torque | 140 Nm |
| Fitment | Yamaha YZF-R7 (2021–2026) |
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// LighTech
LighTech Rear Axle Nut Yamaha YZF-R7 (2021-2026) D003 - Anodised Ergal 7075

Tech specs
- Brand
- LighTech
- Part Number
- D003
- Material
- Ergal 7075 aluminium
- Thread
- M24x1.5
- Outer Diameter
- 39 mm
- Height
- 17.5 mm
- Hexagon Drive Diameter
- 30 mm
- Maximum Tightening Torque
- 140 Nm
- Fitment
- Yamaha YZF-R7 (2021–2026)
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
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