Helmet Spare Parts

Helmet spare parts keep a still-good helmet alive, without replacing it. Here you'll find cheek pads, inner linings, visor mechanisms, fastening screws, air vents, safety hooks, and small spare parts for the brands in our catalog: Airoh, Kappa, SMK, HJC, Bayard, Momo Design. A new cheek pad can help re-calibrate the fit of a loose helmet.

Helmet Spare Parts: guide, tips, and frequently asked questions

Strengths

  • Cheek pads of various sizes – you can correct a loose fit by just changing the padding
  • Washable inner linings – replaceable when the original padding is worn out
  • Visor mechanisms – the part that breaks most often after a few years
  • Screws and small parts – an economical replacement so you don't have to throw away the helmet

Important notes

  • Spare parts are model-specific: a KV40 cheek pad won't fit a KV20.
  • If the lining and cheek pads are permanently compressed, it's a sign that the outer polystyrene is also worn: consider a new helmet.
  • Do not wash cheek pads in a washing machine: use lukewarm water and neutral soap by hand.

When a spare part is worthwhile

  • Helmet moves on your head — Cheek pads one size thicker
  • Flattened padding — Complete inner lining
  • Visor rattles — Visor mechanism
  • Damaged strap — Replacement micrometric closure

Perfect for whom

For those who want to extend the life of a helmet that is less than 5 years old and has a sound shell but worn interior. This is also the section where you'll find the small piece that broke due to repeated use — the peak screw, the hook, the visor release mechanism. Contact us for more information with the brand, model, and name of the part.

Warranty and quality

Original spare parts for Airoh, Kappa, SMK, HJC, Bayard, Momo Design helmets. Moon Bike S.r.l. is an authorized dealer based in Cercola (NA).

Frequently asked questions

Can I tighten the fit by changing the cheek pads?
Yes, that's the classic solution. If the helmet wobbles in turns or on your head, order cheek pads one size thicker for the same model. If it's too tight, use thinner cheek pads. It's often cheaper than buying a new helmet, and the fit returns to being correct.

Can the inner lining be washed?
Yes, but only by hand with lukewarm water and neutral soap (never in a washing machine, never with aggressive detergents). Remove the lining from the helmet according to the manual's diagram, wash, rinse, and let it dry in the shade. Only change the lining if it remains compressed and doesn't regain thickness after washing.

Do visor mechanisms have a limited lifespan?
Yes, they are the most stressed part of the helmet. With 3-5 years of daily use, springs and pawls wear out, the visor starts to rattle or doesn't close cleanly. Replacing the mechanism is economical and restores precision to the helmet without having to replace it.

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  • Upper Air Vents (Sliders + Bases) Kappa KV33 Helmet – Spare Part

    Kappa Moto

    Upper Air Vents (Sliders + Bases) Kappa KV33 Helmet – Spare Part

    £3.00 £4.00 -25%
  • Sliding Upper Air Vent Blue Kappa KV35 Helmet – Spare Part

    Kappa Moto

    Sliding Upper Air Vent Blue Kappa KV35 Helmet – Spare Part

    £4.00 £5.00 -20%
  • Kappa KV51 Helmet Top Vent – Replacement Part

    Kappa Moto

    Kappa KV51 Helmet Top Vent – Replacement Part

    £4.00 £5.00 -20%
  • Black Rear Extractor for Kappa KV52 Helmet – Spare Part

    Kappa Moto

    Black Rear Extractor for Kappa KV52 Helmet – Spare Part

    £6.00 £7.00 -14%
  • KAPPA KV55 Helmet Upper Vent Slides – Spare Part

    Kappa Moto

    KAPPA KV55 Helmet Upper Vent Slides – Spare Part

    £3.00 £4.00 -25%
  • Black Chin Vent for Kappa KV52 Helmet – Spare Part

    Kappa Moto

    Black Chin Vent for Kappa KV52 Helmet – Spare Part

    £4.00 £5.00 -20%
  • Kappa HKJ02 Helmet Sticker Decal Set – Replacement

    Kappa Moto

    Kappa HKJ02 Helmet Sticker Decal Set – Replacement

    £4.00
  • Sliding Air Intake Chin Vent Kappa KV55 Helmet – Spare Part

    Kappa Moto

    Sliding Air Intake Chin Vent Kappa KV55 Helmet – Spare Part

    £3.00 £4.00 -25%
  • Airoh Upper Vents Matte Yellow – Helmet Spare Part

    Airoh

    Airoh Upper Vents Matte Yellow – Helmet Spare Part

    £10.00 £12.00 -16%
  • Airoh Nose Deflector – Phantom / Storm / ST301 Helmet Spare Part

    Airoh

    Airoh Nose Deflector – Phantom / Storm / ST301 Helmet Spare Part

    £12.00 £14.00 -14%
  • Airoh Inner Liner Size XL – J106 Helmet Spare Part

    Airoh

    Airoh Inner Liner Size XL – J106 Helmet Spare Part

    £49.00 £57.00 -14%
  • Airoh Aviator 3 Peak Screw Kit - Helmet Spare Part

    Airoh

    Airoh Aviator 3 Peak Screw Kit - Helmet Spare Part

    £4.00
  • Airoh Visor Extension Screw Kit – Terminator Helmet Spare Part

    Airoh

    Airoh Visor Extension Screw Kit – Terminator Helmet Spare Part

    £8.00 £9.00 -11%
  • Airoh Visor Base Plate Kit 15SON038 – Original Commander Helmet Spare Part

    Airoh

    Airoh Visor Base Plate Kit 15SON038 – Original Commander Helmet Spare Part

    £7.00 £8.00 -12%
  • Airoh Visor Plate Kit RH/LH – Executive Helmet Spare Part

    Airoh

    Airoh Visor Plate Kit RH/LH – Executive Helmet Spare Part

    £12.00 £14.00 -14%
  • Airoh Strap XR1 Light Grey/White – Cross Blast XR1 Goggle Spare Part

    Airoh

    Airoh Strap XR1 Light Grey/White – Cross Blast XR1 Goggle Spare Part

    £9.00
  • Airoh Strap XR1 Pink/White – Cross Blast XR1 Goggle Spare Part

    Airoh

    Airoh Strap XR1 Pink/White – Cross Blast XR1 Goggle Spare Part

    £9.00
  • Airoh Strap XR1 White/Black – XR1 Blast Cross Mask Replacement Part

    Airoh

    Airoh Strap XR1 White/Black – XR1 Blast Cross Mask Replacement Part

    £9.00
  • Airoh Strap XR1 Black/Yellow – Cross Mask Blast XR1 Spare Part

    Airoh

    Airoh Strap XR1 Black/Yellow – Cross Mask Blast XR1 Spare Part

    £9.00
  • Airoh Strap XR1 Blue/White – Replacement Cross Blast XR1 Goggle Strap

    Airoh

    Airoh Strap XR1 Blue/White – Replacement Cross Blast XR1 Goggle Strap

    £9.00
  • Airoh Strap XR1 Matt Black – Replacement Cross Blast XR1 Goggle Strap

    Airoh

    Airoh Strap XR1 Matt Black – Replacement Cross Blast XR1 Goggle Strap

    £9.00
  • Airoh Strap XR1 Red – Cross Blast XR1 Goggle Replacement Strap

    Airoh

    Airoh Strap XR1 Red – Cross Blast XR1 Goggle Replacement Strap

    £9.00
  • Cheek Pads Momo Design AERO 20mm (XL) Black/Grey – Original Spare Part

    Momo Design

    Cheek Pads Momo Design AERO 20mm (XL) Black/Grey – Original Spare Part

    £27.00 £31.00 -12%
  • Momo Design AERO Cheek Pads 25mm (L) Black/Grey – Original Spare Part

    Momo Design

    Momo Design AERO Cheek Pads 25mm (L) Black/Grey – Original Spare Part

    £27.00 £31.00 -12%
  • Cheek Pads Momo Design AERO 30mm (M) Black/Grey – Original Spare Part

    Momo Design

    Cheek Pads Momo Design AERO 30mm (M) Black/Grey – Original Spare Part

    £27.00 £31.00 -12%
  • Cheek Pads Momo Design AERO 35mm (S) Black/Grey – Original Spare Part

    Momo Design

    Cheek Pads Momo Design AERO 35mm (S) Black/Grey – Original Spare Part

    £27.00 £31.00 -12%
  • Cheek Pads Momo Design AERO 40mm (XS) Black/Grey – Original Spare Part

    Momo Design

    Cheek Pads Momo Design AERO 40mm (XS) Black/Grey – Original Spare Part

    £27.00 £31.00 -12%
  • Inner Liner Crown Pad Momo Design FGTR EVO/Classic Black/Grey – Original Spare Part

    Momo Design

    Inner Liner Crown Pad Momo Design FGTR EVO/Classic Black/Grey – Original Spare Part

    £38.00 £40.00 -5%
  • Internal Crown Pad Momo Design AERO Black/Gray – Original Spare Part

    Momo Design

    Internal Crown Pad Momo Design AERO Black/Gray – Original Spare Part

    £34.00 £40.00 -15%
  • Momo Design FGTR EVO/Classic E2206 Visor Mechanism Kit – Original Spare Part

    Momo Design

    Momo Design FGTR EVO/Classic E2206 Visor Mechanism Kit – Original Spare Part

    £14.00 £16.00 -12%
  • Momo Design AERO Visor Screw Kit – Original Spare Part

    Momo Design

    Momo Design AERO Visor Screw Kit – Original Spare Part

    £8.00 £9.00 -11%
  • Air Intake Top Vent Momo Design AERO Matte Titanium – Original Spare Part

    Momo Design

    Air Intake Top Vent Momo Design AERO Matte Titanium – Original Spare Part

    £10.00 £12.00 -16%
  • Air Vent Top Vent Momo Design AERO Matte Military Green – Original Spare Part

    Momo Design

    Air Vent Top Vent Momo Design AERO Matte Military Green – Original Spare Part

    £10.00 £12.00 -16%
  • Top Vent Air Intake Momo Design AERO Matte Gold – Original Spare Part

    Momo Design

    Top Vent Air Intake Momo Design AERO Matte Gold – Original Spare Part

    £10.00 £12.00 -16%
  • Momo Design AERO Top Vent Air Intake Deep Matte Blue – Original Spare Part

    Momo Design

    Momo Design AERO Top Vent Air Intake Deep Matte Blue – Original Spare Part

    £10.00 £12.00 -16%
  • Momo Design AERO Top Vent Air Intake Matte Black – Original Replacement Part

    Momo Design

    Momo Design AERO Top Vent Air Intake Matte Black – Original Replacement Part

    £10.00 £12.00 -16%