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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  • Momo Design FGTR Classic/Evo E2205 Visor Screw Kit (2 Pieces)

    Momo Design

    Momo Design FGTR Classic/Evo E2205 Visor Screw Kit (2 Pieces)

    £24.00 £27.00 -11%
  • Momo Design FGTR E2206 Black Thermoplastic Logo Side Screws – Original Replacement Part

    Momo Design

    Momo Design FGTR E2206 Black Thermoplastic Logo Side Screws – Original Replacement Part

    £16.00
  • Momo Design FGTR E2206 Branded Side Covers Black/Silver Metal – Original Spare Part

    Momo Design

    Momo Design FGTR E2206 Branded Side Covers Black/Silver Metal – Original Spare Part

    £27.00
  • Momo Design Visor Mechanism Kit FGTR Classic/EVO/Arrow/Avio E2205 – Original Spare Part

    Momo Design

    Momo Design Visor Mechanism Kit FGTR Classic/EVO/Arrow/Avio E2205 – Original Spare Part

    £18.00
  • HJC Visor Mechanism Kit HJ-17 – Gear Plate Set for C91 IS-MAX II FG-JET SY-MAX III IS-33 II | 30001701

    HJC

    HJC Visor Mechanism Kit HJ-17 – Gear Plate Set for C91 IS-MAX II FG-JET SY-MAX III IS-33 II | 30001701

    £10.00 £11.00 -9%
  • Kappa Z2542R Visor Plates for KV27 Helmet

    Kappa Moto

    Kappa Z2542R Visor Plates for KV27 Helmet

    £5.00 £6.00 -16%
  • HJC HJ-17 Visor Mechanism Kit for IS-33 II / FG-Jet / IS-Urby Helmet – OEM 30031701

    HJC

    HJC HJ-17 Visor Mechanism Kit for IS-33 II / FG-Jet / IS-Urby Helmet – OEM 30031701

    £11.00
  • Airoh Transparent Peak Screw Kit 6330 – Aviator / Aviator ACE / Terminator / Twist

    Airoh

    Airoh Transparent Peak Screw Kit 6330 – Aviator / Aviator ACE / Terminator / Twist

    £13.00 £14.00 -7%
  • Momo Design FGTR EVO/Classic E2206 Padded Chin Strap Cover – Original Spare Part

    Momo Design

    Momo Design FGTR EVO/Classic E2206 Padded Chin Strap Cover – Original Spare Part

    £11.00
  • Airoh Chin Vent Stop Wind – REV / REV 19 Helmet Spare Part

    Airoh

    Airoh Chin Vent Stop Wind – REV / REV 19 Helmet Spare Part

    £11.00 £13.00 -15%
  • Airoh J-105 J-109 Helmet Base Plates – Right+Left Mechanism Replacement Kit (15SON028)

    Airoh

    Airoh J-105 J-109 Helmet Base Plates – Right+Left Mechanism Replacement Kit (15SON028)

    £8.00
  • Kappa KV57/KV58 Helmet Liner with Cheek Pads – Size S (55-56) – Spare Part

    Kappa Moto

    Kappa KV57/KV58 Helmet Liner with Cheek Pads – Size S (55-56) – Spare Part

    £21.00 £24.00 -12%
  • Grey Side Covers with Screws Kappa KV40 Helmet – Spare Part Z2628R

    Kappa Moto

    Grey Side Covers with Screws Kappa KV40 Helmet – Spare Part Z2628R

    £4.00 £5.00 -20%
  • HJC Visor Mechanism Kit HJ-20M Black – Original Spare Part IS-17 / C70 / FG-17 / FG-ST | Cod. 30022001

    HJC

    HJC Visor Mechanism Kit HJ-20M Black – Original Spare Part IS-17 / C70 / FG-17 / FG-ST | Cod. 30022001

    £13.00 £15.00 -13%
  • Sliding Top Air Vent for Kappa KV50 Helmet – Matte Silver – Spare Part

    Kappa Moto

    Sliding Top Air Vent for Kappa KV50 Helmet – Matte Silver – Spare Part

    £5.00
  • Kappa KV50 Helmet Top Vent Cover – Glossy White – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Top Vent Cover – Glossy White – Spare Part

    £5.00
  • KAPPA KV50 Helmet Chin Vent Slider – Titanium – Spare Part

    Kappa Moto

    KAPPA KV50 Helmet Chin Vent Slider – Titanium – Spare Part

    £5.00
  • Kappa KV61 Helmet Upper Sliding Vents Pair – Replacement Part

    Kappa Moto

    Kappa KV61 Helmet Upper Sliding Vents Pair – Replacement Part

    £4.00 £5.00 -20%
  • KAPPA KV50 Helmet Chin Vent Slider – Silver – Spare Part

    Kappa Moto

    KAPPA KV50 Helmet Chin Vent Slider – Silver – Spare Part

    £5.00
  • Chin Air Vent Slider Kappa KV50 Helmet – White – Spare Part

    Kappa Moto

    Chin Air Vent Slider Kappa KV50 Helmet – White – Spare Part

    £5.00
  • Kappa KV50 Helmet Rear Extractor – Gloss Black – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Rear Extractor – Gloss Black – Spare Part

    £5.00
  • Kappa KV50 Helmet Rear Extractor – Matte Silver – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Rear Extractor – Matte Silver – Spare Part

    £5.00
  • Kappa KV50 Helmet Rear Extractor – Matte Titanium – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Rear Extractor – Matte Titanium – Spare Part

    £5.00
  • Kappa KV38/KV41 Helmet Rear Extractor Slider – Spare Part – Var. 5

    Kappa Moto

    Kappa KV38/KV41 Helmet Rear Extractor Slider – Spare Part – Var. 5

    £5.00 £6.00 -16%
  • Kappa KV50 Helmet Top Vent Slider – Titanium – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Top Vent Slider – Titanium – Spare Part

    £5.00
  • KAPPA KV38/KV41 Helmet Chin Vent Slider – Spare Part – Var. 1

    Kappa Moto

    KAPPA KV38/KV41 Helmet Chin Vent Slider – Spare Part – Var. 1

    £4.00
  • Rear Extractor Slider for Kappa KV38/KV41 Helmet – Spare Part – Var. 4

    Kappa Moto

    Rear Extractor Slider for Kappa KV38/KV41 Helmet – Spare Part – Var. 4

    £5.00 £6.00 -16%
  • Kappa KV38/KV41 Helmet Rear Extractor Slider – Spare Part – Var. 3

    Kappa Moto

    Kappa KV38/KV41 Helmet Rear Extractor Slider – Spare Part – Var. 3

    £5.00 £6.00 -16%
  • Slider Chin Vent Helmet Kappa KV38/KV41 – Spare Part – Var. 3

    Kappa Moto

    Slider Chin Vent Helmet Kappa KV38/KV41 – Spare Part – Var. 3

    £4.00
  • Kappa KV39 Helmet Top Vents – Fluorescent Red – Replacement Part

    Kappa Moto

    Kappa KV39 Helmet Top Vents – Fluorescent Red – Replacement Part

    £5.00
  • Slider Chin Vent Kappa KV38/KV41 Helmet – Spare Part – Var. 5

    Kappa Moto

    Slider Chin Vent Kappa KV38/KV41 Helmet – Spare Part – Var. 5

    £4.00
  • Slider Chin Vent Kappa KV38/KV41 Helmet – Spare Part – Var. 4

    Kappa Moto

    Slider Chin Vent Kappa KV38/KV41 Helmet – Spare Part – Var. 4

    £4.00
  • Kappa KV38/KV41 Helmet Rear Extractor Slider - Spare Part - Var. 1

    Kappa Moto

    Kappa KV38/KV41 Helmet Rear Extractor Slider - Spare Part - Var. 1

    £5.00 £6.00 -16%
  • Kappa KV39 Helmet Spoiler Screw Kit – Spare Part

    Kappa Moto

    Kappa KV39 Helmet Spoiler Screw Kit – Spare Part

    £4.00
  • Kapppa KV38/KV41 Helmet Chin Vent Slider - Spare Part - Var. 2

    Kappa Moto

    Kapppa KV38/KV41 Helmet Chin Vent Slider - Spare Part - Var. 2

    £4.00
  • Kappa KV50 Helmet Rear Extractor – Matte Black – Spare Part

    Kappa Moto

    Kappa KV50 Helmet Rear Extractor – Matte Black – Spare Part

    £5.00