A practical choice for parents who want a lightweight, child-specific helmet for everyday trips in a baby seat, trailer or cargo bike.
The Lazer Pnut 2.0 KinetiCore is a toddler bicycle helmet for children travelling in a baby seat, trailer or cargo bike. The flat rear panel helps reduce the chance of a seat pushing your child’s head forwards, while extra temple coverage gives the helmet a reassuringly protective shape for early family rides.
Inside, KinetiCore uses built-in EPS crumple zones to absorb energy from direct and rotational impacts without adding a separate MIPS liner. The result is a lightweight 240 g helmet that feels unobtrusive for small children and avoids the extra plastic layer that can catch on hair.
The TurnSys System lets you fine-tune the fit with a simple dial, while the reflective sticker on the adjustment dial helps it stand out in low light. The buckle sits beside the cheek rather than directly under the chin, reducing the chance of pinching during fastening. Do take a little extra care when setting the straps: independent testing found that the Pnut can fit exceptionally well on some head shapes but feel too loose or too snug on others, particularly towards the ends of its size range.
KinetiCore protection
Built-in EPS crumple zones help absorb energy from direct and rotational impacts without relying on an added plastic liner.
Designed for baby seats
The flatter rear profile helps prevent the helmet from pushing your child’s head forwards against the seat.
Toddler fit range
The uni-size design fits head circumferences from 46–52 cm; measure carefully before ordering and check that the helmet sits level.
TurnSys adjustment
A simple dial helps you fine-tune the fit so the helmet stays comfortably and securely positioned.
Cheek-positioned buckle
The side buckle is positioned beside the cheek to reduce the likelihood of pinching delicate skin under the chin.
Extra temple coverage
Additional coverage across the temples helps protect a sensitive area of a young child’s head.
Universal LED compatible
The rear mount accepts a Universal Lazer LED to help improve visibility on family rides.
Insect netting
A net in the front vents helps keep insects out while your child is riding.
General
Dimensions & weight
Fit system
Features
Compatibility
Protection & certifications
KinetiCore
Built-in EPS foam blocks crumple under impact to absorb energy and help protect against direct and rotational impacts, without relying on added plastic layers.
TurnSys System
A simple dial lets you fine-tune the fit while riding, helping the helmet stay comfortably and securely positioned.
Temple coverage
Extra protection across the temples helps cover one of the most sensitive areas of a child's head.
Baby-seat-ready design
The flatter rear profile helps prevent the child's head from being pushed forward when riding in a baby seat.
Universal LED compatibility
The rear mounting point lets you add a Universal Lazer LED to improve visibility.
Belgian helmet specialist with more than a century of history.
Lazer is a Belgian helmet brand founded in 1919, with roots in Nivelles and headquarters today in Mechelen, Belgium. The company began with protective headwear long before modern cycling helmets became standard, then evolved through leather crash hats into hard-shell bicycle helmets as the sport demanded higher levels of protection.
Over the decades, Lazer became closely associated with cycling helmet development, including early hard-shell road helmets and more recent advances in fit, ventilation and rotational-impact design. Since 2016, Lazer has been part of Shimano, and in 2022 it introduced KinetiCore, its own built-in rotational impact protection system.
