US Trends

what is the crash bar diameter on the himalayan 450?

The crash bar diameter on the Himalayan 450 is not a single fixed number ; it depends entirely on which crash bars you’re talking about, because the bike has no standard OE crash bars and various aftermarket options use different tube sizes.

Quick answer

  • There is no official “crash bar diameter” for the Himalayan 450 from Royal Enfield.
  • Common aftermarket crash bar tube diameters you’ll see are:
    • 22 mm (e.g., Unit Garage Heavy Duty bars)
* **25 mm** (e.g., Givi tubular engine guard, some low crash bar sets)

* **27 mm** (e.g., SW-Motech crash bars)

* **23 mm** aluminium (e.g., Adventure Spec low crash bars) for their specific aluminium design

So if someone asks “what is the crash bar diameter on the Himalayan 450?”, the accurate answer is: it depends on the brand/model of crash bars ; typical steel-tube crash bars are in the 22–27 mm range.

Why there isn’t one single number

No factory crash bars

The Himalayan 450 does not come with factory-installed crash bars. That means:

  • Royal Enfield doesn’t define a “crash bar diameter” in the specs.
  • Any diameter you see is defined by the ** aftermarket manufacturer**, not the bike itself.

Different designs, different purposes

Manufacturers choose tube diameters based on:

  • Protection level : Larger diameter + thicker wall = more robust, but heavier and sometimes bulkier.
  • Mounting points : Some use triple attachment points, others two; geometry changes with diameter.
  • Material : Steel vs aluminium changes the ideal diameter (e.g., 23 mm aluminium for Adventure Spec).

Typical options in detail

22 mm steel crash bars

  • Example: Unit Garage Heavy Duty Engine Crash Bars
  • Tube diameter: 22 mm
  • Wall thickness: 2 mm
  • Triple attachment points for higher protection.

These are often marketed as “heavy duty” but still relatively slim compared to 27 mm options.

25 mm steel crash bars

  • Example: Givi TN9059 tubular engine guard
  • Tube diameter: 25 mm
  • Designed specifically for Himalayan 450 / Guerrilla 450 (2024+).

Some low crash bar + bash plate sets also use 25 mm / 1 inch mild steel tubing with 2 mm wall thickness.

27 mm steel crash bars

  • Example: SW-Motech crash bars
  • Tube diameter: 27 mm
  • Robust steel pipe with corrosion-resistant black powder coating.

These are among the larger-diameter steel options, often chosen for serious off-road or adventure use.

23 mm aluminium crash bars

  • Example: Adventure Spec low crash bars
  • Diameter: 23 mm
  • Material: 6000 series heat-treated aluminium (not steel).

Aluminium bars can be lighter while still strong, but the diameter is not directly comparable to steel tubes in terms of stiffness and impact behavior.

If you’re asking for a specific part

If your question comes from:

  • Buying a specific crash bar set (e.g., SW-Motech, Givi, Unit Garage),
  • Or fitting a bash plate / skid plate that needs to match existing bars,

then the diameter you need is the one listed by that product , not by the bike. For example:

  • SW-Motech = 27 mm
  • Givi = 25 mm
  • Unit Garage = 22 mm
  • Adventure Spec = 23 mm aluminium

Always check the product page or manual for the exact tube diameter and wall thickness before buying mounts, sliders, or accessories. Information gathered from public forums or data available on the internet and portrayed here.