Modular tyre liner

A modular inner tyre liner formed from a plurality of pieces, each piece comprising:

• a key head;
• and
• a key hole, the key hole having a T-shaped cross-section, the T-shaped cross-section having a lengthwise slot orientated toward the key head and a perpendicular cross slot, wherein
• the key head of a first piece of the plurality of pieces is configured for insertion into an associated key hole of a first adjacent piece of the plurality of pieces for engagement in use to form a mechanical interlock with the first adjacent piece;
• the key head and the key hole are configured for allowing movement of the first piece with respect to the first adjacent piece along a length of the liner;
• the first piece is configured for connection to the first adjacent piece by bending the key head of the first piece along an elongate axis thereof and by inserting the bent key head through the lengthwise slot of the first adjacent piece;
• and
• when the key head of the first piece is inserted into the key hole of the first adjacent piece, and the key head of the first adjacent piece is inserted into the key hole of a second adjacent piece of the plurality of pieces, the key head of the first piece is sandwiched between portions of the first adjacent piece and the second adjacent piece.