Kappa KB37N K'BOX Monolock Top Case 37 Liters Black – Crablock Quick Release with Plate and Universal Kit

The Kappa KB37N K'BOX is the new top case in the Monolock® range with an internal capacity of 37 litres, designed for scooters and light motorcycles. Its compact and functional design makes it suitable for both daily urban use and touring. It features the CRABLOCK direct pressure opening/closing system: turning the key slightly lifts the lid, allowing for quick opening. The quick release with an internal release knob allows the top case to be removed from the plate only when the lid is open, preventing accidental removal. Extremely lightweight, without sacrificing robustness. Supplied complete with a Monolock® plate and universal fitting kit.

✓ Strengths

• 37 litre internal capacity – can hold one modular helmet
• CRABLOCK system – direct pressure opening, the lid lifts by turning the key
• Quick release with internal knob – removal from the plate only with the lid open, prevents accidental release
• Technopolymer construction – extremely lightweight yet robust
• Monolock® plate included – along with the universal fitting kit
• Compact design – H 31 × W 40 × D 40 cm, integrates well with scooters and light motorcycles
• Embossed black – scratch-resistant finish, discreet on any vehicle
• Maximum load 3 kg – ideal for urban use and commuting

Technical specifications

* Actual helmet capacity varies by brand and model: check size before purchase.

Recommended accessories and spare parts

• K645 – black polyurethane passenger backrest, specific for KB37N
• E161K – internal elastic net for top case, secures contents during travel
• ZKB37CNM – replacement assembled lid for KB37N
• Z3930RK – replacement release system for KB37N
• Z3911RK – replacement locking tooth for KB37N
• Specific Kappa mounting kit for your motorcycle or scooter model

Who it's perfect for

The KB37N K'BOX is the ideal top case for those who use a scooter or a light motorcycle daily and want a secure space for their helmet and groceries without weighing down the vehicle. The 37 litres offer more space than a compact 30-litre top case while remaining lightweight and discreet, and the Crablock system makes opening immediate even with gloves. Perfect for commuters, urban riders, and anyone looking for their first Monolock® top case complete with plate, without needing to buy anything extra.

Frequently Asked Questions

How many litres does the Kappa KB37N have and what can it hold?
The KB37N K'BOX has an internal capacity of 37 litres and can hold one modular helmet. It is an intermediate size: more capacious than a 30-litre urban top case, but still compact and lightweight for small-to-medium displacement scooters and motorcycles. Actual capacity varies by helmet brand and model.

What is the Crablock system on the KB37N?
Crablock is Kappa's direct pressure opening/closing system: turning the key slightly lifts the lid automatically, allowing for quick opening even with gloves. The top case is released from the plate with an internal release knob and is only possible when the lid is open, preventing accidental removal while riding.

Does the KB37N include the mounting plate?
Yes. The KB37N is supplied complete with a Monolock® plate and universal fitting kit: it can be mounted on any motorcycle or scooter equipped with a compatible luggage rack, without additional purchases. For a dedicated mounting kit for your model, please contact us with the make, model, and year.

What is the maximum load of the KB37N?
The maximum permitted load is 3 kg, as for all top cases in the Monolock® range. This limit must be observed: excessive weight at the rear of the vehicle affects balance when cornering and braking, as well as placing undue stress on the luggage rack.