The needle (12) of the device for inserting a wire into a tire has: a piercing zone (18) having an axis of symmetry, and a duct (30) having a proximal opening and a distal opening (36) opening into the zone (18) and off-center relative to the axis, the duct consisting of the proximal opening and of a rectilinear profiled section including the distal opening.

A tire traction device can include a strap configured to extend around at least a portion of a vehicle tire; and a traction plate. The traction plate can have a lower surface adapted to sit on a circumferential portion of the vehicle tire, an upper surface opposite to the lower surface, a channel configured to receive the strap, and one or more paddles extending upward from the upper surface. Other features, embodiments, and kits, and related methods are also described.

A web structure for a non-pneumatic tire includes a first corrugated ring having a first plurality of peaks and a first plurality of valleys. The first corrugated ring is a metal ring. The web structure further includes a second corrugated ring having a second plurality of peaks and a second plurality of valleys. The second corrugated ring is a metal ring. The second plurality of valleys are affixed to the first plurality of peaks by brazing or welding.