We made B.I.G upgrades to make the Fatfish OG bolder, and brought you the Biggie.











Fatfish Grime EN15194 Certified Fat Tyre E-Bike
Disclaimer: It’s the rider’s responsibility to stay informed about local rules, ride safely, and wear appropriate protective gear, including a helmet.
Check the local laws before you purchase a bike or go for a ride. Read the full disclaimer below for more information.
The Biggie- Bigger, Better & Badass
GOLD COAST BUILT
The numbers that matter
UP TO
100 KM
RANGE
per charge
25 KM/H
TOP SPEED
road-legal limit
250 W
MOTOR
high torque rear
125 KG
PAYLOAD
rider + cargo
GOLD COAST BUILT
The numbers that matter
UP TO
100 KM
RANGE
per charge
25 KM/H
TOP SPEED
road-legal limit
250 W
MOTOR
high torque rear
125 KG
PAYLOAD
rider + cargo
GOLD COAST BUILT
The numbers that matter
UP TO
100 KM
RANGE
per charge
25 KM/H
TOP SPEED
road-legal limit
250 W
MOTOR
high torque rear
125 KG
PAYLOAD
rider + cargo
GOLD COAST BUILT
The numbers that matter
UP TO
100 KM
RANGE
per charge
25 KM/H
TOP SPEED
road-legal limit
250 W
MOTOR
high torque rear
125 KG
PAYLOAD
rider + cargo
SET THE PACE
FLAT SEAT & SUPER FAT TYRES
Unlike all other dual-suspension fat-tyre ebikes on the market, our flat seat keeps you planted and comfortable. Fatfish seats are known for their comfort and textured finish.
Paired with 20x5.0 super fat tyres, grip comes from the ground up. More surface area. More stability. More confidence on the road.
Dual Suspension With Custom Shock Bumper.
This setup reacts instantly to bumps, dips and rough surfaces, smoothing out the ride without killing feedback. Whether you are riding solo or with a passenger, the suspension stays balanced and composed.
FRONT: Adjustable rebound and compression to keep the front end controlled and responsive across uneven roads.
REAR: Fully adjustable compression, preload and rebound, paired with a custom shock bumper.
Motor Power.
High-torque custom Fatfish motor capable of handling strong acceleration, responsive torque and confident hill climbing.
Coupled with 200 mm double-thickness rotors for faster cooling and four-piston hydraulic brakes to deliver precise braking power.
ENDURANCE
Endurance in the ride. Endurance in the build. A fatigue-reducing geometry paired with DNM suspension will make sure distance doesn't wear you down. The setup reacts instantly to bumps, dips and rough surfaces, smoothing out the ride without killing feedback. Whether you are riding solo or with a passenger, the suspension stays balanced and composed.
Transmission
Shimano 7 Speed
Fast, Accurate, Indexed Shifting Performance with the 7-speed 14-28T Shimano Derailleur, Cassette, and Shifter.
Motor
250W
Fatfish 48V 250W High Torque Rear Motor.
Derailleur
Shimano Tourney
The Shimano Tourney TY Long Cage Rear Derailleur Accommodates the Biggie's 14-28T Cassette To Deliver the Wide Range of Gears that Support the Multiple Riding Modes on this Ebike.
Battery
960Wh/ 20Ah
960 Wh, Samsung Cells. Superior Weatherproofing. Up to 100 km on a Single Charge. Comes with a Battery Strap for Superior Safety.
Brakes
Tektro Hydraulic Disc Brakes
Tektro Hydraulic Disc Brakes, featuring Motor Safety Cut Off.
Parental
Lock
Set the password to lock all display settings. Ideal for riders who want to prevent curious hands from messing with their settings. This feature keeps it all locked,
even top speed
and motor power.
Sensor
Cadence
Dual Hall 24 Induction Magnets Cadence Sensor.
Suspension
60mm Front Fork
with Dual Spring Compression for Greater Responsiveness and Longevity.
Warranty
3 Years
on Frame, Battery 2 years, Motor 2 years, and All Other Components 1 Year.
Charger
Input Voltage
48 Volt | Output 48v 2A
Speed
25km/hr
In the Box
Biggie
Battery Charger, 2 Keys for the Battery, Bottle Cage, Front & Rear Light, and MIK Ready Rear Rack. Built in Horn, operated by Control Panel. USB Charging Mode for Add On Accessories.
Range
Up to 100km
Range is determined by riding conditions, which vary for each user and each ride.
Rear Rack
MIK Ready
Reinforced Rear Rack prefitted with the MIK Carrier Plate, ready for Attachin MIK Product Adaptor for easy cargo sliding on-off.
Display
C900 LCD
Centre-Mounted C900 LCD Console, Charge Indicator, Speedometer, Odometer, Trip Odometer, Pedal Assist Level, Clock and more
Max Load
160 kg
MAX LOAD: 160 kg.
BIKE WEIGHT: 35 kg including battery
TOTAL CARRYING CAPACITY: 125 kg, including cargo. No specific weight restriction on pillion rider. The total weight limit should not be exceeded.
Lights
LED
Headlight and Taillight Powered by the Main Battery and Operated using the Control Panel positioned on the Handlebar.
Tyres
20 x 4.0"
Tyres & Rims
Puncture-Resistant Tyres and Strong Alloy BK One-Piece Rims, make the Biggie ideal for Commmuting & Adventures.
Frame
Alluminium Alloy
Lightweight yet Sturdy Frame for Longevity, Matte Black, Wide-Guards with Heavy Duty Stays (Front & Rear).
Cables
Marine Rated
Cables and Plugs on All Components for Simple and Quick Servicing and Replacement.
Handlebar
680mm wide
Alloy Handlebar, Positioned a tad bit Higher than the OG to offer more Control & Comfort to the Taller Riders.
Biggie Features
Transmission
Shimano 7 Speed
Fast, Accurate, Indexed Shifting Performance with the 7-speed 14-28T Shimano Derailleur, Cassette, and Shifter.
Motor
250W
Fatfish Custom Tuned 48V 250W High Torque Rear Motor
Parental Lock
Set the password to lock all display settings. Ideal for riders who want to prevent curious hands from messing with their settings.
This feature keeps every setting locked, including
top speed and motor power.
Derailleur
Shimano Tourney
The Shimano Tourney TY Long Cage Rear Derailleur Accommodates the Biggie's 14-28T Cassette To Deliver the Wide Range of Gears that Support the Multiple Riding Modes on this Ebike.
Battery
960 Wh/ 20Ah
960 Wh, Samsung Cells. Superior Weatherproofing. Up to 100 km on a Single Charge in Eco Mode. Comes with a Battery Strap for Superior Safety.
Brakes
Kamros Hydraulic Disc Brakes
Kamros Hydraulic Disc Brakes, featuring Motor Safety Cut Off.
See All Features
Sensor
Cadence
Dual Hall 24 Induction Magnets Cadence Sensor.
Suspension
60mm Front Fork
with Dual Spring Compression for Greater Responsiveness and Longevity.
Warranty
3 Years
on Frame, Battery 2 years, Motor 2 years, and All Other Components 1 Year.
Charger
Input Voltage
48 Volt | Output 48v 2A
Speed
25km/hr
In the Box
Biggie
Battery Charger, 2 Keys for the Battery, Bottle Cage, Front & Rear Light, and MIK Ready Rear Rack. Built in Horn, operated by Control Panel. USB Charging Mode for Add On Accessories.
Range
Up to 100km
Range is determined by riding conditions, which vary for each user and each ride.
Rear Rack
MIK Ready
Reinforced Rear Rack prefitted with the MIK Carrier Plate, ready for Attaching MIK Product Adaptor for easy cargo sliding on-off.
Display
C900 LCD
Centre-Mounted C900 LCD Console, Charge Indicator, Speedometer, Odometer, Trip Odometer, Pedal Assist Level, Clock and more
Max Load
160 kg
MAX LOAD: 160 kg.
BIKE WEIGHT: 35 kg including battery
TOTAL CARRYING CAPACITY: 125 kg, including cargo. No specific weight restriction on pillion rider. The total weight limit should not be exceeded..
Lights
LED
Headlight and Taillight Powered by the Main Battery and Operated using the Control Panel positioned on the Handlebar.
Tyres
20 x 4.0"
Tyres & Rims
Puncture-Resistant Tyres and Strong Alloy BK One-Piece Rims, make the Biggie ideal for Commmuting & Adventures.
Frame
Alluminium Alloy
Lightweight yet Sturdy Frame for Longevity, Matte Black, Wide-Guards with Heavy Duty Stays (Front & Rear).
Cables
Marine Rated
Cables and Plugs on All Components for Simple and Quick Servicing and Replacement.
SEE IT MOVE
Set the pace
Manuals & downloads
CHECK FULL SPECS
| Fatfish Grime — Full Specs EN15194 Certified • Road Legal | |
|---|---|
| Powertrain | |
| Motor | 250WFatfish Custom Tuned High Torque 190mm Extra Large Motor, 250W. |
| Speed | 25km/hr |
| Battery | 48V 20Ah48V 20Ah Battery with 21700 Samsung Cells. |
| Range | Up to 100kmIn Eco Mode. Range is determined by riding conditions, which vary for each user and each ride. |
| Controller | 48V High PerformanceBrushless Motor Controller. |
| Suspension & Braking | |
| Front Suspension | 20 inch Double Shoulder Forkwith Adjustable Rebound & Compression. |
| Rear Suspension | Fully AdjustableCompression, Preload & Rebound with a Custom Shock Bumper. |
| Brakes | 4-Piston Hydraulic4-Piston Hydraulic Brakes with a Cut-Off Function and a 203mm Double-Thickness Rotor. |
| Drivetrain | |
| Sensor | CadenceTwo Hall 24 Magnetic Cadence Sensors. |
| Derailleur | Shimano Tourney FT7 Speed Rear Derailleur. |
| Shift Lever | 7 SpeedRapidfire Plus. |
| Chain | 1/2*3/32*134LRust Fighting Coating. |
| Chainwheel | 3/32* 52T*160mmTooth Bed. |
| Crank | 160mm Cranksfor Better Stability. |
| Frame & Comfort | |
| Tyres | 20 x 5.00" Tyresfor Maximum Stability, Traction and All-Terrain Control. |
| Handlebar | Wide Designwith Ample Grip Distance & Custom Bend Angle to Reduce Stress on Wrist. |
| Seat Cushion | Fatfish SignatureDual Passenger Flat Seat with High Grip Texturised Fabric. |
| Cargo Rack | Heavy DutyHolds up to 25 kg. Not Suitable for Carrying Passengers. |
| Pedals | Standard Fatfish Pedalswith Reflectors. |
| Foot Pegs | Fatfisher Tested& Approved Foot Pegs. |
| Mudguard | 20-InchFront & Rear Mud Flaps. |
| Kick Stand | High-QualityLoad Bearing Kick Stand. |
| Display & Electronics | |
| Display | C900 LCDC900 LCD Console with Parental Lock to password protect motor output and top speed. |
| Parental Lock | Password ProtectedSet the password to lock all display settings. Ideal for riders who want to prevent curious hands from messing with their settings. This feature keeps every setting locked, including top speed and motor power. |
| Lights | Vintage-Style HeadlightPowered by the Main Battery. |
| Indicators | Rear Tail Lightswith Turn Signals. |
| Capacity, Warranty & Certification | |
| Max Load | 125 kg totalMax rider weight is 100 kg, and max cargo weight is 25 kg. Maximum total 125 kg. |
| Warranty | 3 Yearson Frame, Battery 2 years, Motor 2 years, and All Other Components 1 Year. |
| Certification | EN15194 certified — road legal. |
| Fatfish Grime — Full Specs EN15194 Certified • Road Legal | |
|---|---|
| Powertrain | |
| Motor | 250WFatfish Custom Tuned High Torque 190mm Extra Large Motor, 250W. |
| Speed | 25km/hr |
| Battery | 48V 20Ah48V 20Ah Battery with 21700 Samsung Cells. |
| Range | Up to 100kmIn Eco Mode. Range is determined by riding conditions, which vary for each user and each ride. |
| Controller | 48V High PerformanceBrushless Motor Controller. |
| Suspension & Braking | |
| Front Suspension | 20 inch Double Shoulder Forkwith Adjustable Rebound & Compression. |
| Rear Suspension | Fully AdjustableCompression, Preload & Rebound with a Custom Shock Bumper. |
| Brakes | 4-Piston Hydraulic4-Piston Hydraulic Brakes with a Cut-Off Function and a 203mm Double-Thickness Rotor. |
| Drivetrain | |
| Sensor | CadenceTwo Hall 24 Magnetic Cadence Sensors. |
| Derailleur | Shimano Tourney FT7 Speed Rear Derailleur. |
| Shift Lever | 7 SpeedRapidfire Plus. |
| Chain | 1/2*3/32*134LRust Fighting Coating. |
| Chainwheel | 3/32* 52T*160mmTooth Bed. |
| Crank | 160mm Cranksfor Better Stability. |
| Frame & Comfort | |
| Tyres | 20 x 5.00" Tyresfor Maximum Stability, Traction and All-Terrain Control. |
| Handlebar | Wide Designwith Ample Grip Distance & Custom Bend Angle to Reduce Stress on Wrist. |
| Seat Cushion | Fatfish SignatureDual Passenger Flat Seat with High Grip Texturised Fabric. |
| Cargo Rack | Heavy DutyHolds up to 25 kg. Not Suitable for Carrying Passengers. |
| Pedals | Standard Fatfish Pedalswith Reflectors. |
| Foot Pegs | Fatfisher Tested& Approved Foot Pegs. |
| Mudguard | 20-InchFront & Rear Mud Flaps. |
| Kick Stand | High-QualityLoad Bearing Kick Stand. |
| Display & Electronics | |
| Display | C900 LCDC900 LCD Console with Parental Lock to password protect motor output and top speed. |
| Parental Lock | Password ProtectedSet the password to lock all display settings. Ideal for riders who want to prevent curious hands from messing with their settings. This feature keeps every setting locked, including top speed and motor power. |
| Lights | Vintage-Style HeadlightPowered by the Main Battery. |
| Indicators | Rear Tail Lightswith Turn Signals. |
| Capacity, Warranty & Certification | |
| Max Load | 125 kg totalMax rider weight is 100 kg, and max cargo weight is 25 kg. Maximum total 125 kg. |
| Warranty | 3 Yearson Frame, Battery 2 years, Motor 2 years, and All Other Components 1 Year. |
| Certification | EN15194 certified — road legal. |
Biggie Dimensions
All Products sold by Fatfish Bikes are designed for recreational use. Laws and regulations for their use vary across Australian states and territories. It’s the rider’s responsibility to stay informed about local rules, ride safely, and wear appropriate protective gear, including a helmet. Any guidance or information provided by Fatfish Bikes is general in nature and may not apply to every individual situation.
It is your responsibility to check the applicable local laws relating to your intended use of the vehicle on roads, footpaths, shared paths, bicycle lanes, and bicycle paths.
Please refer to our Terms and Conditions for more information.
To protect our customers from fraudulent activity, we conduct a quick security check on all orders over $500. In some cases, if we suspect unusual activity, this check may also apply to smaller orders.Orders are only confirmed once the security check is complete. Our team may contact you by email or phone to verify details as part of this process. Delivery timeframes begin after order confirmation, and we will work efficiently to keep your order on track.Thank you for your understanding, as this step helps ensure a safe and secure shopping experience for you.
For products available for pre-order, please check the ETA provided for stock availability.
The ETA indicates when stock will be ready, not the delivery date. Once stock is available, your order will be processed, and standard shipping times will apply.
Want to test ride the Fatfish OG? Contact or visit one of our stores near you!
Want to test ride the Fatfish Step? Contact or visit one of our stores near you!
Want to test ride the Fatfish Biggie? Contact or visit one of our stockists near you!
SHIPPING
All orders are dispatched within 3–5 business days from Gold Coast, this is followed by a delivery time frame. Delivery times typically range from 3–5 business days for metro areas and 7–14 business days for rural and remote locations. Excludes WA, NT and remote areas. For Standard Shipping, we offer free delivery on orders over $99, excluding bulky items. Orders under $99 will incur a $9.90 flat shipping fee.
Please note: While every attempt will be made for you to receive your order as per these delivery timeframes, occasional inconsistencies in logistics and stockouts may occur.
We also offer a Click & Collect service, allowing you to order online and conveniently pick up your items in-store at no extra cost. Make sure to collect your order within 7 days from when you're notified that your order is ready.
Please note: While every attempt will be made for your order to be processed as per the delivery timeframes stated, occasional inconsistencies in logistics and stock outs may occur.
For products available for pre-order, please check the ETA provided for stock availability.
The ETA indicates when stock will be ready, not the delivery date. Once stock is available, your order will be processed, and standard shipping times will apply.
$14.00 Express Shipping option is available for non-bulky items, usually arriving next business day in metro areas. Express shipping is not available for e-bikes and for delivery to WA, NT and remote areas.
Please note: While every attempt will be made for you to receive your order as per these delivery timeframes, occasional inconsistencies in logistics and stockouts may occur