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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  • Full Grey Interior for Kappa KV52 Helmet – Size XL (61) – Replacement Part

    Kappa Moto

    Full Grey Interior for Kappa KV52 Helmet – Size XL (61) – Replacement Part

    £20.00 £24.00 -16%
  • Kappa KV52 Grey Full Helmet Interior – Size L (60) – Spare Part

    Kappa Moto

    Kappa KV52 Grey Full Helmet Interior – Size L (60) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Interior for Kappa KV52 Helmet – Size M (58) – Spare Part

    Kappa Moto

    Complete Grey Interior for Kappa KV52 Helmet – Size M (58) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Inner Helmet Kappa KV52 – Size S (56) – Spare Part

    Kappa Moto

    Complete Grey Inner Helmet Kappa KV52 – Size S (56) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Inner Lining Kappa KV52 Helmet – Size XS (54) – Spare Part

    Kappa Moto

    Complete Grey Inner Lining Kappa KV52 Helmet – Size XS (54) – Spare Part

    £20.00 £24.00 -16%
  • Upper Air Vents Black Kappa KV52 Helmet – Spare Part

    Kappa Moto

    Upper Air Vents Black Kappa KV52 Helmet – Spare Part

    £4.00 £5.00 -20%
  • Complete Grey Interior for Kappa KV55 Helmet – Size XXL (63) – Spare Part

    Kappa Moto

    Complete Grey Interior for Kappa KV55 Helmet – Size XXL (63) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Interior for Kappa KV55 Helmet – Size XL (61) – Spare Part

    Kappa Moto

    Complete Grey Interior for Kappa KV55 Helmet – Size XL (61) – Spare Part

    £20.00 £24.00 -16%
  • Kappa KV55 Grey Full Helmet Interior – Size L (60) – Replacement

    Kappa Moto

    Kappa KV55 Grey Full Helmet Interior – Size L (60) – Replacement

    £20.00 £24.00 -16%
  • Complete Grey Interior Kappa KV55 Helmet – Size M (58) – Spare Part

    Kappa Moto

    Complete Grey Interior Kappa KV55 Helmet – Size M (58) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Interior Kappa KV55 Helmet – Size S (56) – Spare Part

    Kappa Moto

    Complete Grey Interior Kappa KV55 Helmet – Size S (56) – Spare Part

    £20.00 £24.00 -16%
  • Complete Grey Inner Lining for Kappa KV55 Helmet – Size XS (54) – Spare Part

    Kappa Moto

    Complete Grey Inner Lining for Kappa KV55 Helmet – Size XS (54) – Spare Part

    £20.00 £24.00 -16%
  • Pair of Black Screw Cover Caps for Kappa KV37 Helmet – Replacement Part

    Kappa Moto

    Pair of Black Screw Cover Caps for Kappa KV37 Helmet – Replacement Part

    £3.00 £4.00 -25%
  • Complete Kappa KV40 Helmet Interior – Size XL (61) – Spare Part

    Kappa Moto

    Complete Kappa KV40 Helmet Interior – Size XL (61) – Spare Part

    £15.00 £17.00 -11%
  • Complete Inner Lining for Kappa KV40 Helmet – Size L (60) – Spare Part

    Kappa Moto

    Complete Inner Lining for Kappa KV40 Helmet – Size L (60) – Spare Part

    £15.00 £17.00 -11%
  • Complete Inner Liner Kappa KV40 Helmet – Size M (58) – Replacement Part

    Kappa Moto

    Complete Inner Liner Kappa KV40 Helmet – Size M (58) – Replacement Part

    £15.00 £17.00 -11%
  • Full Interior Kappa KV40 Helmet – Size S (56) – Spare Part

    Kappa Moto

    Full Interior Kappa KV40 Helmet – Size S (56) – Spare Part

    £15.00 £17.00 -11%
  • Complete Inner Lining for Kappa KV40 Helmet – Size XS (54) – Spare Part

    Kappa Moto

    Complete Inner Lining for Kappa KV40 Helmet – Size XS (54) – Spare Part

    £15.00 £17.00 -11%
  • Bayard Visor Sun Shield Replacement XP-18 S – UV Protection Jet Helmet

    Bayard

    Bayard Visor Sun Shield Replacement XP-18 S – UV Protection Jet Helmet

    £15.00 £18.00 -16%
  • Bayard FP-22 S Visor Mechanism Kit – Original Modular Helmet Spare Part

    Bayard

    Bayard FP-22 S Visor Mechanism Kit – Original Modular Helmet Spare Part

    £27.00 £31.00 -12%
  • Transparent Long and Flat Anti-scratch Visor Kappa Z2459TR – KV20 Helmet

    Kappa Moto

    Transparent Long and Flat Anti-scratch Visor Kappa Z2459TR – KV20 Helmet

    £9.00 £11.00 -18%
  • Transparent Anti-scratch Visor for Glasses Kappa Z2458TR – KV20 Helmet

    Kappa Moto

    Transparent Anti-scratch Visor for Glasses Kappa Z2458TR – KV20 Helmet

    £9.00 £11.00 -18%
  • Kappa Z2539R Visor Mechanism Kit with Screws – Helmet Spare Part

    Kappa Moto

    Kappa Z2539R Visor Mechanism Kit with Screws – Helmet Spare Part

    £7.00 £8.00 -12%
  • Pinlock 30 Kappa Z2399RK Anti-fog Lens DKS166 for KV27 and KV38

    Kappa Moto

    Pinlock 30 Kappa Z2399RK Anti-fog Lens DKS166 for KV27 and KV38

    £13.00 £16.00 -18%
  • Kappa Z2454KR Visor Mechanisms for KV20 Helmet

    Kappa Moto

    Kappa Z2454KR Visor Mechanisms for KV20 Helmet

    £4.00 £5.00 -20%
  • Kappa Z245361R Complete Interior for KV15 Helmet Size 61

    Kappa Moto

    Kappa Z245361R Complete Interior for KV15 Helmet Size 61

    £19.00 £22.00 -13%
  • Kappa Z2418RK Visor Mechanism with Screws for KV3 Helmet

    Kappa Moto

    Kappa Z2418RK Visor Mechanism with Screws for KV3 Helmet

    £10.00 £12.00 -16%
  • HJC Visor Mechanism Kit HJ-09 Gear Plate Set - CS-15 / CL-SP / FG-15 / TR-1 / IS-16 (30000901)

    HJC

    HJC Visor Mechanism Kit HJ-09 Gear Plate Set - CS-15 / CL-SP / FG-15 / TR-1 / IS-16 (30000901)

    £9.00 £11.00 -18%