Keep your battery where it belongs — on your bike.
The Katt’fix lock is a lightweight, hardened stainless-steel security insert designed specifically for the Riese & Müller Nevo4 low-entry frame. It anchors the Bosch battery securely within the frame, adding a discreet but highly effective layer of theft protection without altering the look or handling of your bike.
At just 268g, the Katt’fix delivers impressive strength for its size, using recyclable materials and components that can be repaired or replaced over time — a smart upgrade for everyday riders who park in public or rely on their bike for commute and errands.
We Fit Accessories
When you order parts and accessories with your bike, we’ll fit them for you wherever possible, so your bike arrives ready to ride.
Convenient Collection Options
Prefer to collect in person? Choose to pick up your items from any Fully Charged store, including locations in London, Silverstone, Guildford, Cornwall, or the New Forest.
Fast Dispatch
Orders are typically dispatched within 1–3 working days. Tracking information will be provided for all orders once your package leaves us.
Free Mainland UK Delivery
Enjoy free delivery on orders over £100 across Mainland UK. For Northern Ireland, Channel Islands, and the Scottish Highlands, a courier charge applies.
If you're not completely satisfied with your purchase, you have 14 days from the date of receipt to cancel, return, or exchange your order, excluding custom-built or personalised items. To initiate a return or exchange, please contact Fully Charged via email or phone with your order details. Return the goods within 14 days at your expense, and we'll refund you via the original payment method, minus any costs for damage or devaluation.
Specifications
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