Helmet liners BELL 4 Forty / Hela Mips, black, size M (55–59 cm), 2018

Replacement internal liners for the BELL 4 Forty / Hela Mips helmet in black, size M (55–59 cm), model year 2018. These liners restore the helmet's internal padding and fit adjustment, maintaining compatibility with the specified BELL shell and the Mips rotational protection system. Designed as direct replacements, they address worn, compressed, or removed padding to recover original comfort, hygiene and proper fit.

Advantages

These replacement liners are molded to match the original helmet interior and preserve the intended fit and retention of the BELL 4 Forty / Hela Mips. The black fabric provides a neutral appearance and easy maintenance, while the padding layers help absorb sweat and reduce pressure points. Using purpose-made liners retains the Mips interface alignment and the helmet’s designed clearance for impact management.

Suitable for

• Restoring comfort and fit for BELL 4 Forty / Hela Mips helmets (size M, 55–59 cm)
• Replacing worn or flattened pads after regular use or impact
• Seasonal or hygiene-related replacement to remove odors and bacteria
• Maintaining correct fit when transferring helmets between users or when adjusting fitment

Key specifications

• Compatibility: BELL 4 Forty and Hela helmets with Mips system (model year 2018)
• Size range: Medium, fits head circumference approximately 55–59 cm
• Color: Black fabric covering
• Components: Inner comfort pads and fit adjustment liners designed to attach to existing helmet anchors
• Material features: Soft foam padding with moisture-wicking fabric facing for sweat management

How to use

Remove the original liners by detaching the anchor points or Velcro tabs inside the helmet, noting the placement of each pad. Align the replacement liners with the corresponding mounting points and press firmly until secure. Ensure the Mips low-friction layer and any retention system are not obstructed and that the liner sits flush against the helmet shell. After installation, wear the helmet and make final fit adjustments using the retention dial or straps to confirm a snug, even fit across the head.

Usage recommendations

For hygiene, hand-wash the liners in mild detergent and air-dry fully before reinstallation. Replace liners if foam shows permanent compression or fabric is damaged. Always verify compatibility with the helmet model and year before fitting to maintain the helmet’s safety performance.