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Fatfish Biggie 20AH Fat Tyre E-Bike

Fatfish Biggie 20AH Fat Tyre E-Bike

Regular price $2,799.00
Regular price Sale price $2,799.00
Sale Sold out
Color: Black

Meet the Fatfish Biggie, the ultimate ride for those who want power, style, and endurance in one beast of an e-bike. Whether you’re tearing up the streets or cruising to your next adventure, the Biggie’s got your back with top-tier components and serious performance.

Power-Packed Performance— Rocking a Fatfish 48V 500W High Torque Rear Motor, which can be unlocked to 750W and delivers a peak output of 1080W.

Massive Range—A 960Wh Samsung-cell battery gives you up to 200 km in Eco Mode, so your ride lasts longer than your playlist. Plus, it’s built with superior weatherproofing and comes with a safety strap for your battery.

Shimano 7-Speed Precision—The Shimano Tourney derailleur & 14-28T cassette ensure crisp, reliable shifting so you can handle any terrain like a pro.

Next-Level Stopping Power—Kamros hydraulic disc brakes with motor cut-off mean you’re always in control, no matter the conditions.

Smooth Suspension—A 60mm front fork with adjustable lockout soaks up bumps for a cushy ride.

Tough & Ready—Built on a lightweight yet sturdy aluminium alloy frame, featuring marine-rated cables for easy servicing.

Commuter & Adventure-Ready—Puncture-resistant 20” x 4.0” tyres on one-piece alloy rims give you the perfect mix of grip and durability.

Smart Display & Controls— The centre-mounted C900 LCD shows speed, trip info, battery life, and more. The built-in horn, turn signals, and USB charging make it city-proof.

Cargo-Friendly— A MIK-ready reinforced rear rack lets you slide cargo on and off effortlessly.

Max Load? No worries. – Carry up to 160 kg, including gear, groceries, or whatever else you need.

With a 3-year frame warranty, 2 years on battery and motor, and 1 year on all other components, the Biggie isn’t just an e-bike—it’s an investment in next-level riding.

Time to roll in style. Jump on a Biggie and make every ride legendary.

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All Fatboy Bikes models have a maximum continued rated power of 500 watts at 25km/h with a max load of 180kg. In the opinion of Fatboy Bikes this is inline with NSW EPAC legislation.

 The continued rated power can be further limited where required by restricting the bikes speed further.

Throttles are strictly for private property use and should be isolated when riding in public.

Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads, footpaths, shared paths, bicycle lanes and bicycle paths.

MORE INFORMATION

SPECIFICATIONS

MOTOR
52V BAFANG HUB Motor with peak power capability of 1560Watts

BATTERY
52V 20AH SAMSUNG Lithium-ion Battery

CHARGE TIME
4-6 Hours Full Charge

WARRANTY
2 Years Complete Bike Warranty

DRIVE MODE
Cadence Sensing Pedal Assist 1:9 + Twist Throttle w. Isolator

DISPLAY
Water & Dirt Resistant LCD Colour Display w. Phone Charging

SPEED
Restricted 25 km/h Public Use. Private Use Unlock to 50km/h in Australia only.

SUSPENSION
Class Leading Front And Rear Suspension

GEARS
SHIMANO 7 Speed

BRAKES
Large diameter 203mm TEKTRO Hydraulic Disc Brake

WEIGHT CAPACITY
Class Leading 180kg Carrying Weight

CRANK
High Quality Ounce Alloy Crank

INCLUSIONS
3 Stage Light Sensing LED Headlight & Tail Light, Footpegs, Mudguards

COLOUR OPTIONS
Gloss Black / Nardo Grey / White Noise / Midnight Blue / Desert Sand

BIKE WEIGHT
38KG including battery

BOX DIMENSIONS
190cm x 26cm x 90cm  |  48KG Boxed

SHIPPING & RETURNS

FREE SHIPPING AUSTRALIA WIDE

On all orders over $100. Excluding some regional or remote areas.

We offer free shipping anywhere in Australia for all orders over $100 or $10 flat rate shipping for orders under $100 – surcharges may apply to remote locations within Australia.

ADDITIONAL SURCHARGES

Whilst we do deliver to most locations within Australia, we reserve the right to adjust shipping charges accordingly or to cancel orders for low freight service areas, remote or regional locations or islands. This is subject to the discretion solely of Fatboy Bikes.

DELIVERY TIMES

Orders are dispatched during business hours. Shipping times are 2–5 business days for orders in NSW or 5–12 business days for orders outside NSW. During peak periods such as Black Friday, Christmas, New Year etc. these shipping times can vary.

FATBOY HQ PICK UP

Pick up is available for all orders within NSW from our warehouse location at 44 Meta Street, Caringbah. Please contact us prior to pick up if you wish to arrange assembly of your order in advance.

ASSEMBLY & PACKAGE SIZES

Watch our assembly video here – Our eBikes come 95% assembled, with both wheels attached inside the box. A quick 15–20 minutes assembly is required.

The bike boxes are approx 190 x 26 x 90 cm and weigh 48 kg. We do recommend a professional assembly to ensure your warranty is not void.

SHIPPING DAMAGES

If you received broken or damaged packages, please ensure to take pictures and ask the courier agent to write and sign the damage description.

In case of damage or loss of the product during shipment, the customer may be required to cooperate with the seller in completing a claim application based on the courier’s required paperwork.

RETURNS POLICY

We offer 7 day returns for online purchases only. For orders made in-store, please refer to the store’s specific return policy.

In the event of a return, the cost of return will be on the purchaser. You will be responsible for proper repacking of the product in its original packaging.

If the original packaging is not accessible, no refund will be granted. If the product is damaged during return due to improper packing, the cost of repair will be on the customer’s side.

All returns must have written consent via email from Fatboy Bike Pty Ltd before they are to be shipped back to head office and processed.

To submit a return, please email our support team at hello@fatboybikes.com.au to start the returns process.

COMPARE BIKES

Our bikes have all been designed in Australia with premium parts.

The new V2 models all feature 52V Samsung Battery and give the bikes that extra torque for steep inclines especially when carrying two riders or riding on rough terrain.


Watch our V2 Bike Comparison video to see a full walk through of each bike model and its features.

Class Leading Motor

Featuring a high torque Bafang hub drive motor means more power and capability for steep inclines, two riders or off road use of your ebike

Samsung Battery

Safety tested Samsung 52V 20AH Lithium-ion Samsung battery featuring a sleep mode which protects your battery, removable and lockable with a built in LED tail light for extra safety

LED Bright Display

Our premium water & dirt resistant LCD colour display features built in phone charging capability, battery indicator, headlight control, trip, ODO, range and passcode settings

203mm Tektro Brakes

Bigger is always better, that's why our bikes all feature large diameter 203mm TEKTRO Hydraulic Disc Brakes ensuring better brake ability particularly for downhill or heavier load

Passenger Footpegs

We want you to share your adventures, which is why we have designed our bikes for two riders so we've included rear passenger footpegs as standard on all our bikes

LED Headlight

Designed for riding day and night - our bikes include a super bright 3 stage headlight with day time running feature, high beam and low beam so you can see and be seen when riding

Cargo Rack

Our new patented designed rear cargo rack to fit The Scrambler, The Bagus & The Harlem Fatboy Bikes V2 models. Maximum load capacity is 30kg. Compatible with our child seat adapter.

FREQUENTLY ASKED QUESTIONS

What are the laws on electric bikes in Australia?

Electrically power-assisted cycle requirements:

 An electrically power-assisted bicycle has a maximum continued rated power of 500 watts. This power output must be:

(i)    progressively reduced as the bicycle’s speed increases beyond 6km/h

(ii)   cut off when:
– the bicycle reaches a speed of 25km/h
– the rider stops pedalling and the speed exceeds 6km/h.

Are Fatboy Bikes legal electric bikes?

All Fatboy Bikes models have a maximum continued rated power of 500 watts at 25km/h with a max load of 180kg. In the opinion of Fatboy Bikes this is inline with NSW EPAC legislation. Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads and road related areas. 

How fast can I go on ebike?

The electric motor should not assist the rider when travelling more than 25km/h but does not prevent the rider travelling faster with their own pedalling or going downhill. When using your ebike on private property, the bike can be unlocked to reach up to 55-60km/h.

What is the weight restriction on Fatboy Bikes?

The Fatboy Bikes are weight rated for up to 180kgs.

CONTACT US

Fatboy Bikes Sale Team:

Call -0431816101
Email -support@urbantidebikes.com.au

Warranty & Servicing:

Call - 0431816101
Email - support@urbantidebikes.com.au