Carry More. Ride Stable. Install in Minutes.

The Granny Wheels Universal Bike Cargo Carrier transforms your existing rear rack into a wider, more usable cargo platform — giving you the confidence to carry larger, heavier, or awkward loads without compromising balance or safety.

Whether you’re commuting, delivering, or heading out on an adventure, this rack expander makes hauling gear simple, secure, and reliable.

How It Works

The platform mounts directly onto your existing rear rack, extending its usable surface area. This allows you to safely support items that would otherwise be unstable or impossible to carry on a standard rack alone.

No drilling. No permanent modifications. Just a solid extension that works with the rack you already have.

Fast, Secure Installation

Installation takes just a few minutes and requires no special tools.

Attaches using industrial-grade zip ties (12 mm wide, 2 mm thick)
Strong, vibration-resistant hold across different rack shapes and tube diameters
Included cutters allow you to trim excess tie length for a clean, professional finish

This attachment method is proven, adaptable, and ideal for real-world riding conditions.

Built-In Load Security

To keep your cargo stable while riding, the kit includes:

Two adjustable bungee straps with metal hooks
Prevents shifting during braking, acceleration, and turns
Ideal for backpacks, suitcases, delivery bags, crates, or boxes

Your load stays where you put it.

Wide Compatibility

Designed to work with a broad range of rear racks, including:

Standard bicycles
Electric bikes
Scooters
Motorcycles with tail racks or trunks

It can even support bulky items such as inflatable paddle boards packed in bags, making it a versatile solution for both urban and recreational use.

Made for Couriers & Daily Riders

This cargo carrier is especially well suited for e-bike couriers and delivery professionals who rely on a stable rear load every day. It helps transport groceries, parcels, luggage, and orders efficiently — without tipping or instability.

What’s Included

13.5 by 18″ Aluminum Cargo platform (3mm thick)
Heavy-duty zip ties (12mm wide, 2mm thick)
Adjustable bungee straps with metal hooks (40″ long, 30mm thick)
4 short bungee loops with hooks
Zip-tie cutters

Designed by riders. Built for real cargo.
If your rack feels too small for the loads you actually carry, this expander is the missing piece.

Bike courier accessories

Rear Bike Rack Expander