ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
Ampd Bros ACE X Demon Electric Bike Urban
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
Ampd Bros ACE X Demon Electric Bike Pair
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike
Ampd Bros ACE X Demon Electric Bike Urban
Ampd Bros ACE X Demon Electric Bike Seat
Ampd Bros ACE X Demon Electric Bike Rear Suspension
Ampd Bros ACE X Demon Electric Bike Rear Suspension
Ampd Bros ACE X Demon Electric Bike Headlight
Ampd Bros ACE X Demon Electric Bike Headlight
Ampd Bros ACE X Demon Electric Bike Rear Motor Hub
Ampd Bros ACE X Demon Electric Bike Disc Brake
Ampd Bros ACE X Demon Electric Bike Cup Holder
Ampd Bros ACE X Demon Electric Bike Battery
Ampd Bros ACE X Demon Electric Bike Removable Battery
Ampd Bros ACE X Demon Electric Bike battery Interface
Ampd Bros ACE X Demon Electric Bike Coffee Cup
Ampd Bros ACE X Demon Electric Bike Battery Interface
Ampd Bros ACE X Demon Electric Bike Display
Ampd Bros ACE X Demon Electric Bike Colour Display
ACE-X Demon MKII Dual Motor Electric Bike
Ampd Bros ACE X Demon Electric Bike Left Handlebar
Ampd Bros ACE X Demon Electric Bike Pedal
ACE-X Demon MKII Dual Motor Electric Bike
ACE-X Demon MKII Dual Motor Electric Bike

ACE-X Demon MKII Dual Motor Electric Bike

Regular price$5,490.00
  • In Stock Online, Ready to Ship
  • No Stock Available, Contact Us to Confirm
  • 2 Year Nation Wide Warranty!
  • FREE AU Delivery on this Bike!
  • Same Day Dispatch before 12pm
  • Nationwide Sales & Service Agents
  • Direct Aussie Tech Support Mon-Fri
  • 24 Months ZIP Interest Free Available
  • Aussie Family Owned Brand Est. 2019
  • The Original Aussie Bike Since 2019
  • Dual Motors & Dual Suspension!
  • Massive Dual Seat for 2 Riders!

Front & Rear
Dual Suspension

Insane 2,000W
All Wheel Drive


Introducing the all NEW MKII - ACE-X DEMONĀ AWD Dual Motor Electric Bike - Get ready for an exhilarating journey! šŸš€ Inspired by our renowned ACE-X Model Range, the ACE-X DEMON is a high-octane marvel loaded with an array of exciting features.

Diverging from its predecessor, the ACE-X PRO, the MKIIĀ DEMON is a true powerhouse. It boasts Dual 1,000W Motors, combining to produce an astonishing 2,000W of power! But there's more to it than just that - we've integrated Dual Suspension and an insanely bright 1,700 lumen Headlight, elevating your ride's comfort and visibility to unprecedented levels.

Designed in-house by our family team and celebrated as Australia's original and favorite fat tyre electric bike, the ACEĀ name has evolved significantly since its debut in 2019, and this year it arrives with even more fresh updates! Take a look at what the MKII ACE Demon Bike now brings to the table:

- All New Blue Lightning Finish Colour way
-Ā 2024 BafangĀ Latest Generation G063 Series 1,000W Motor
- Advanced Custom DNM Suspension for enhanced performance
- Stylish New Color Options for a personalized touch
- Upgraded Docking Station featuring an All-New Aluminum Battery and Smart BMS
- Ampd Bros Custom Controller for unmatched power and cutting-edge motor control

Embark on any adventure with the ACE-X DEMON, featuring our iconic high cross bar "X" frame design, an adjustable top coffee cup/bottle holder, a spacious two-person seat, and a massive Removable Samsung Battery šŸ’„ that delivers an astonishing range on a full charge. Combined with Bafang's High Torque Motors, your exploration knows no boundaries!

Fearlessly conquer any terrain with a staggering 190Nm of Combined Torque, whether you're tackling beaches, hills, dirt tracks, grass, or pavement! The standard Pedal Assist ensures effortless cruising, but with our Off Road Throttle Kit, you can glide effortlessly. The 7 Speed Shimano Rapid Fire trigger shifter and altus transmission āš™ļø provide lightning-fast gear shifts for precise control.

Crafted from lightweight aluminum, this bike not only resists rust but also effortlessly handles demanding conditions. Even if you run out of charge, you can keep riding without a hitch!

Experience unparalleled freedom with the ACE-X DEMON - effortlessly switch between motors using the 3 Way Motor Switch! Choose to ride with the Front Motor Only, Rear Motor Only, or unleash the Dual Motors for a dominant hill-climbing performance! šŸžļøšŸ’Ø

Checkout the Range of Options & AccessoriesĀ for your New ACE BikeĀ orĀ need help customising your bike? SpeakĀ to our Friendly Team on what works best forĀ you.


  • 21AHĀ SamsungĀ Battery
  • Up to 90km Range
  • StepĀ Over Design Frame
  • AWD Front & Rear DriveĀ 
  • Dual Bafang 1,000W Motors (Total 190NM - 2,000W)Ā 
  • Up to 50km/h+ (Off Road Private Property Use Only)
  • TektroĀ HydraulicĀ Disc Brakes

MKII Models with 1,000W Motors will be available for Sale from 8th September onwards.Ā Please note that this Electric Bike is exclusively designed for Off Road Use Only.


Speed & Range

  • RangeĀ 90km* (Single Motor Only)
  • Pro MKII Top SpeedĀ 25km/hĀ (or Unlock up to 50km/h for Private Property Use)
  • Demon MKII Top SpeedĀ Up to 50km/h+ (Off Road Private Property Use Only)


  • StandardĀ 48V / 1,008Wh, 21AH
  • Samsung Premium 21700 Lithium cells
  • Battery is removable and can be charged in bike or separately.Ā 

Ride Modes

  • Mode 1Ā Pedal Assist mode:Ā Adjustable pedal assist performance settings from 1-5 orĀ can also be changed to 1-3 or 1-9
  • ModeĀ 2Ā WalkĀ mode:Ā Idles bike up to 6km/h to assist with moving bike by holding the "-" button on the keypad
  • Mode 3Ā Throttle mode: Available when Optioned with the Off Road Throttle Kit


  • Hill AbilityĀ Up to 30Āŗ Degree / 60% Incline PAS
  • SeatĀ Custom Large Dual Seat for 2 Riders
  • Warranty 2Ā Years
  • Waterproofing IP65 on Bike, Motor etc (excludes Battery)
  • Ace Pro Headlight Standard 220lm LED Light with DRL
  • Demon HeadlightĀ Upgraded PRO Front LED 1,700lm Headlight with DRLĀ 
  • Lights Rear LED Brake Light inbuilt to battery pack
  • Grips Velo Wide Comfort
  • Bell Yes


  • StandardĀ Tektro HydraulicĀ Disc
  • DiscsĀ 160mm
  • E-Brakes Yes Motor Safety Cut Off


  • Colour Upgraded Multi-Function with USB, ODO, Trip, Battery Level, Speed etc


  • Ampd Brothers Custom - Best-in-class power density and state-of-the-art motor control algorithms.


  • Motor TypeĀ Bafang RMG 062D & 063D Latest Generation (Released 2023)
  • Ace Pro MotorĀ Single Rear HubĀ Drive 1,000W
  • Ace Demon MKII MotorsĀ AWD Dual Drive Hub 1,000W Motors Front & Rear (2,000W Total)Ā 
  • Ace Pro Torque High Torque 95n.m
  • Ace Demon Torque High Torque 190n.m (Combined)
  • Transmission Shimano 7Ā Speed with Rapid Fire Micro Shifter
  • Derailleur Shimano Altus
  • Pedals Wellgo Alloy - Black
  • Chain KMC Z Series High Performance


    • FrameĀ Aluminium - "X" Step Over Bar Design
    • HandlebarsĀ AluminiumĀ Motorcycle Inspired with AdjustableĀ HeightĀ 
    • Fenders Matte Black Aluminium


    • StandardĀ Front IndependentĀ & Rear Adjustable DNM

    Wheels & Tyres

    • 20x4.0" Kenda KrusadeĀ Fat MudĀ Tyres


    • 12hrs+ 21Ah Batteries with Standard 2A Included Charger
    • Optional 5A Fast Charger Available


    • Overall LengthĀ 1,800 mm
    • Handlebar HeightĀ 1,140 - 1,190 mm
    • Handlebar WidthĀ 660 mm
    • Seat HeightĀ 850 mmĀ Fixed Height
    • Seat Length 600 mmĀ 
    • Ground ClearanceĀ 270 mm
    • Wheel BaseĀ 1,160 mm
    • Rider Height Ideal for Riders upĀ to 200cm Tall


    • N.W of 21Ah BatteryĀ 5.06kg
    • N.W of BikeĀ 45 kg
    • Max Loading 150 kg


    • In Box Bike, 48V Battery, 2A AUS Charger, Front Headlight, Basic Tool Kit, Manual, Pedals, Fenders, Seat & Kick Stand.

    *Range Achievable may vary based on loading, motor use, throttle/pas, terrain, weather conditions and many other factors.Ā 

    ACE Models - So whats the deal?

    With more features than a stuffed mexican taco - ACE has something for everyone to love. Here's what you need to know about the ACE Range...

    What does X & S mean?

    • X means "Cross Bar Step Over Frame" and
    • S means "Step Through, Low Bar Frame"

    ACE VSĀ ACE Plus+

    • Standard "ACE" Consists of a 500W Motor, No Suspension and a 15AH or "60km" Range Battery Pack where,
    • ACE Plus+ Models Consist of the same features as the standard ACE range but instead with 750W Motor, Front Suspension and a 20AH or "80km" Range Battery Pack

    ACE-X Classic Series
    The ACE-X Classic features the same specifications as a Plus+ Model, but with a few differences primarily in styling such as;

    • Unique Paint Finishes exclusive to the Classic Series Only
    • Bafang 750W Motor
    • Unique Brown Accented Seat/Grips
    • Unique White Wall Street Tyres instead of Kenda Mud Tyres

    ACE-X Pro Series
    The ACE-X Pro series is the entry level model into our dual suspension line. The Pro also receives a bunch of upgrades from the Plus+ Series including;

    • UniqueĀ Paint Finishes exclusive to Pro Models Only
    • Upgraded 1,000W Rear Hub Drive Motor
    • Upgraded Display to a Full Colour LCD
    • Upgraded to Dual Suspension with DNM Rear Shock
    • Upgraded Battery Pack to 25Ah with up to 100km Range

    ACE-X DemonĀ Series
    The ACE-X DemonĀ series is the bigger brother of the ACE Pro, consisting of much the same bonesĀ as the Pro, although with some major bonus'...

    • UniqueĀ Paint Finishes exclusive to DemonĀ Models Only
    • Upgraded from Single Motor to Dual AWDĀ Hub Motors (1,000W Front & Rear - Total 2,000W)
    • Upgraded Headlight to our Extreme 1,700lumen LED Light

    Here at Ampd Brothers we stand behind all our products nation wide regardless of where you live so you can rest assure knowingĀ your purchaseĀ comes backed byĀ a renowned Aussie Retailer.

    Warranty Periods:
    • 2Ā Year's on 2023 Ampd Brothers Electric Bike Models (1 Year on Batteries) Sold from December 1st 2022 onwards
    • 1 YearĀ onĀ Pre 2022 Electric Bikes, Stacyc, Surron, KAA Sumo, Electric Scooters & Vortex Skateboards
    • 6 Month'sĀ on Products Sold as "Ex-Demo" or "Ex-Display" items
    • 3 Months on Refurbished or Repaired Products
    • 3Ā Month'sĀ on any Parts & Accessories*

    OurĀ ExtensiveĀ WarrantyĀ applies Australia Wide forĀ all our products. *T&C's Apply for fullĀ information on Warranty & ReturnsĀ Click Here.

      30 Day Ride Guarantee & Returns
      We are soĀ confident in our products thatĀ we offer aĀ Ride Guarantee, which ensureā€™sĀ that should you not be satisfied with a quality, manufacturing or not fit for purpose related issueĀ on the product purchased it will be rectified or if the item is new, un-used and still in packaging it can be returned for a full refund.

      External causes/mattersĀ or changes of mind are notĀ applicable under this guarantee for return or refund.Ā 

      If 30 days have gone by since your purchase, unfortunately we cannot offer you a refund or exchange.

      Please seeĀ the Full Terms & Conditions onĀ ourĀ Returns and Warranties Page

      Domestic Australian Shipping

      We ShipĀ šŸššĀ FREE in AUS for orders over $100! For orders under $100 a Flat Rate of $8Ā will Apply. More options and express services are available at the Checkout. This includes Free Delivery on allĀ E-Bikes, Skateboards & Scooters (under 50kg)!

      Christmas Delivery

      For all Christmas deliveries please takeĀ note thatĀ no Small Articles will be guarantee'd for Christmas delivery from DEC 15th. For all Bikes and bulky Articles will not be guarantee'd from DEC 8thĀ (WA,NT & TAS will not be guaranteed from December 1st) so be sure to place any orders before these periods or visit a local store for availability in your area.

      *Free Shipping Exclusions:
      Any Orders under $100 or Oversized Items Over 50kg willĀ incur aĀ $199 Freight FeeĀ to WA, TAS & NT.Ā Items in particular to this surcharge are Sur-Ron Motorbikes & SumoĀ KAA Speed Fat Boy Scooters.

      Fee's will also apply to Australian Remote Locations.Ā Eg. Broome, Macquarie Island, Lord Howe, Thursday Island, Kangaroo Island, Russel Island, Rottnest etc) and we reserve the right to cancel any order to such location or adjust shipping fee's where necessary, we recommend Contacting Us for a Quote if you believe you may be subject to such charges.

      Delivery Times vary from 2Ā ~ 14 Business DaysĀ (Excludes Public Holidays & Peak Periods). Remember -Ā Large and Bulky items require more manual handlingĀ and may not arrive onĀ estimatedĀ delivery day provided by couriers as these dates areĀ based on Small Items.

      *AdditionalĀ Fee's May Apply for Missed DeliveriesĀ - Please Ensure you ship to an attended address to avoid any missed delivery.

      All ordersĀ are packed and shipped securely boxed and items such as bikes, scooters or SurRon motorcyclesĀ willĀ require some assembly and/or fitting - refer to our assembly page for assistance, or contact your local dealer to book in forĀ assembly (Assembly fee's may apply).

      Note: We doĀ notĀ Ship Large items to anyĀ P.O Boxes or Parcel Lockers. (Small ArticlesĀ can be delivered to P.O Boxes viaĀ AusPost when selected at checkout)

      International Shipping

      Currently we only ship Selected items to New Zealand, UK, Europe and USAĀ for shipping prices please refer to the checkout or Contact us for a Quote. All Prices & Rates are charged in AUD$ and exclude any import taxes or charges.

      For full details on Shipping & Delivery please refer to ourĀ Shipping PageĀ or Contact Us if you are not sure.

      Key Features

      Dual AWD Motors

      Front & Rear 1,000W Motors
      Peak Output 2,000W+
      Top Speed - 55km/h+

      Samsung Battery

      48V 21AH Lithium Battery
      Removable Alloy Design
      Up to 90km Range*

      Dual Suspension

      Front Independent Fork
      Adjustable Rear DNM Shock
      Max Loading Weight 150kg

      Watch the Video

      Watch the Review

      Built with the Best

      Upgraded LCD

      Colour Display

      Exclusive to Ace Pro & Demon Series only, our Custom LCD Colour display features a bunch of awesome functionality such as Automatic sensing headlights, estimate range remaining, battery and motor usage and more!


      21700 Battery

      Our latest 2nd Generation aluminium battery now features Premium Samsung 21700 Cells, improved water resistance, better docking station and a completely new BMS with Auto Sleep mode to protect your battery! It is also completely removable, lockable, has an integrated battery level indicator aswell as a Brake Light function!

      Dual Bafang

      AWD 1,000W Motors

      Yep, not just one but 2 Motors! As the industries leading manufacturer of e-bike motors, it makes sense to partner with Bafang. Known for their huge levels of Torque and Performance, the 95n.m Gear Drive hub motor will challenge all expeditions with ease with a total combined output of over 2,000W! Note: For Off Road Use Only.

      Frame mount

      Top Cup Holder

      A signature and an essential addition to the ACE-X model range. Carry your morning brew easily with the Frame mounted Cup Holder which is completely adjustable for those larger bottles or smaller coffee cups! Note: Not available on ACE-S Models

      1,700 Lumen

      PRO Headlight

      Our most powerful headlight yet! The PRO headlight is exclusive only to the Ace Demon series and features a Daytime Running light as well as a powerful low beam. The Pro light is capable of 1,700 lumens output, ideal for the darkest expeditions.


      On all our Ampd Bros Demon electric bikes you'll find almost everything you need to get started, even a Pump! You'll also find...

      • Your Bike
      • Fenders
      • Pro 1700lm Headlight
      • Bonus Free Ampd Bros Carry Bag with all your gear inside! Such as..
      • Tyre Pump
      • Suspension Adjustment Tool
      • Basic Tool Kit
      • Standard AU Charger
      • Instructional Manual with links to Instructional videos
      • Plus a Bonus Ampd Bros Sticker!

      You won't get that kind of love with other brands!

      To simplify the Ace 2024 model range..

      X = Cross Bar Step Over Frame
      S = Step Through Low Bar Frame

      Standard ACE Models:
      15AH - 60km Range Battery
      Hydraulic Brakes
      No Suspension
      Rear 500W Motor

      ACE Plus+ Models:
      20AH - 80km Range Battery
      Hydraulic Disc Brakes
      Front Suspension Included
      Rear 750W Motor

      ACE Classic Models:
      17.5AH - 70km Range Battery
      Hydraulic Disc Brakes
      Front Suspension Included
      Rear 750W Motor
      White Walls & Classic Accents

      ACE PRO Models:
      21AH - 100km Range Battery
      Hydraulic Disc Brakes
      Dual Suspension
      Rear 1,000W Motor
      Upgraded Colour Screen

      ACE Demon Models:

      21AH - 100km Range Battery
      Hydraulic Disc Brakes
      Dual Suspension
      Dual 1,000W AWD Motors
      Upgraded Colour Screen
      Upgraded Headlight

      Yes sure you can unlock your bike to the maximum speed the motor is capable of producing. But take note of the regulations in your area as doing so may deem your bike legal for off road private property use only. Be sure to check the speed limit in your area but typically speaking exceeding 25km/h is not legal practice in most states.

      Yes sure! We do have them available as optional accessories here, but keep in mind throttles are only legal on Private Property only hence why we do not include them with any of our bikes.

      In virtually all states you do not need a licence or require any registration to ride an E-Bike, although if you are found to be riding under the influence of alcohol or exceeding the 25km/h speed limit for example, you may be penalised against your drivers licence.

      All Australian states follow the same basis of rules which are established off the European standard EN15194.

      In essence all e-bikes must;

      • Not exceed 250W (Some states eg. NSW is 500W)
      • Be propelled purely by pedal assist only and the pedals have to be used to keep the motor operating (a pedalec)
      • Must not be operated purely by Throttle
      • Must not be capable of exceeding 25km/h
      • Abide by local law such as, wearing helmets, riding within speed limits in set areas etc

      So the short story is that e-bikes are legal to use in Australia yes!

      Be sure to check with your local authority as to any other regulations in your area.

      All our E-Bikes come securely boxed and are shipped 80% assembled and do require some assembly. Should you need assistance you can checkout our YouTube for assembly videos or you can also refer to a store near you for bike builds and service.

      Generally bike delivery will take longer than most small size articles as they are bulky and require more manual handling so on average to most major cities is approx a 5-10day delivery time. For more rural areas and NT, WA or TAS you should expect to see 14 days or more for your order to arrive.

      We have a bunch of dealers across Australia who carry our range and provide after sales support. Checkout our list of dealers here and be sure to give them a call to check stock availability, they may even be able to order a bike in for you to view otherwise. If not be sure to call us and we may be able to arrange for you!

      All our Ampd Brothers range of electric bikes come backed by our 2 Year Nation wide warranty! So you can ride worry free always!

      Checkout the full terms and conditions here.

      Our bikes are resistant to approx IP65 and are extremely weather resitant to rain etc. however as best practice we always advise to avoid water as much possible as even though they are extremely capable, water can create a lot more maintenance than necessary sooner rather than later!

      Unfortunately we only offer selected tyres pre-installed as standard on our bikes. However we do have a huge range of tyres available as additional parts for all our bikes including street, mud or even white wall tyres!

      Checkout the tyre range here.

      The Ampd Difference

      Local Support

      Need help? Speak with a local qualified tech, 5 days per week or visit one of our many local dealers Australia wide.

      Premium Components

      Developed meticulously by our team of experts for over 5 years, our bikes are built to last. We don't do cheap, we do the best.

      comprehensive warranty

      We know our products are tougher than anyone else's so we back them confidently for 2 Years regardless of where you live!

      Customer Reviews

      Based on 15 reviews
      Lachy Dunnicliff
      Demon ace dual

      Love the bike, easy to assemble

      Ash Z
      Ace Demon MKII does not disappoint!

      I know that Amp'd Bros claim that the dual 1000W motors in the Ace Demon MKII eats hills for breakfast, but I didn't expect just how easily it would pull my heavy frame up some of Hobart's steep hills! The suspension makes for such a smooth off road ride and the big comfy seat is great for a long cruise along the waterfront tracks. If you're on the fence about getting one, just do it.

      Kane M
      Demon X lives up to the hype

      The Demon X is fantastic so far, Iā€™ve been riding for a few weeks and canā€™t fault it. Dual motors make a world of difference especially on soft dirt and the suspension makes pretty much anything a smooth ride. Taken some pretty decent trips on it and havenā€™t used more than half the battery yet. Had a small issue with the derailleur hanger from shipping and the support guys knew what it was and how to fix it pretty much instantly.

      The Ampd BROS Experience šŸ˜ŽšŸ‘!!!

      Stop looking elsewhere for your E- Bike . This is exactly where you should be .
      Here are the reasons why :-
      ā— Australian company.
      ā— Only top of the line componentry
      ā— Quality check and assurance done here in Australia before shipping and this is then repeated if purchased from approved dealers before customers handover .
      ā— The freedom of purchase selection:-
      ā— Outstanding customer service care and attention.
      With genuine interest in getting you on the right bike.
      Now with that I will add an excellent reception to my enquiries by David who was informative, friendly, enthusiastic.
      Everyone seriously stop the nightmare of navigating dodgy deals on the internet with highly questionable real world quality.
      Buy from guys that care about what they provide and how it is presented.
      Speak to real people and allow them to impart their wealth of knowledge and experience.
      You will be very glad you did.
      By the way my selection is going be a DEMON X šŸ˜ŽšŸ‘!!!

      Ace Demon x

      Love the ace demon x its my 4th e bike very manoeuvrable and fun to ride the only thing i dont like is the really noisy front motor when i have it on people turn around to see what it is .

      Recently viewed