Aventon Level 4 ADV ST – Mid-Drive Commuter eBike - Purple Haze
Aventon Level 4 ADV ST – Mid-Drive Commuter eBike - Purple Haze
Size Guide

Description
COMMUTE FURTHER
The Level 4 ADV elevates daily transport with smooth mid-drive support, automatic shifting, connected security, and refined control. Built for commutes, errands, and weekend fitness rides, it delivers a natural pedalling feel without adding complexity - for up to 180km of assistance on a single charge!
ULTRO S MID-DRIVE MOTOR
The Ultro S mid-drive motor delivers natural power, balanced handling, and up to 100Nm of torque. With 750W peak output and a keyless removable 800Wh battery, it offers the range and support needed for hills, longer commutes, and loaded daily riding.
SMART CONNECTIVITY
The integrated rear wheel lock quickly immobilises the bike between stops, while GPS/4G tracking and unusual activity alerts help monitor its location. Apple Watch connection adds everyday convenience, letting riders power off, engage the lock, and track rides from the wrist.
COMFORT & SMART SHIFTING
A 100mm suspension fork, suspension seatpost, adjustable stem, and commuter-focused geometry help smooth rough roads and fine-tune your riding position. Aventon E-Shifter and AutoShift technology keep cadence natural as speed, terrain, and traffic change.
APPLE WATCH CONNECTION
Control your Level right from your wrist! Introducing Apple Watch Connectivity, integrated control right from your wrist. Power your bike off, engage the E-Lock, and track your rides from your Apple Watch.
INTEGRATED WHEEL LOCK
Built-in security, lock your hub instantly to prevent bike thefts. Quickly secure your Level 4 ADV between errands or a mid-ride coffee thanks to the integrated rear wheel lock that immobilizes your rear wheel and further deters theft.
E-SHIFTER & AUTOSHIFT
The Aventon E-Shifter offer simple and precise shift quality, while the AutoShift functionality ensures riders are always in the opitmal gear for their preferred cadence and riding speed. No more mis-shifts or gearing uncertainty.
4G+GPS TRACKING
Keep An Eye On Your Ride. Easily check your bike's location through the Aventon app for peace of mind when your adventures take you off the bike. Rest easy knowing you'll receive an immediate alert on your phone if someone tampers with or moves your bike when it's parked or stored.
Specifications
We reserve the right to modify product specifications and details without prior notification.
Geometry
Length measurements are provided in millimeters and degrees, unless specified otherwise.
Size Guide
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
Assembly
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Aventon Level 4 ADV ST – Mid-Drive Commuter eBike - Purple Haze. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
Description
Specifications
Geometry
Size Guide
Assembly
COMMUTE FURTHER
The Level 4 ADV elevates daily transport with smooth mid-drive support, automatic shifting, connected security, and refined control. Built for commutes, errands, and weekend fitness rides, it delivers a natural pedalling feel without adding complexity - for up to 180km of assistance on a single charge!
ULTRO S MID-DRIVE MOTOR
The Ultro S mid-drive motor delivers natural power, balanced handling, and up to 100Nm of torque. With 750W peak output and a keyless removable 800Wh battery, it offers the range and support needed for hills, longer commutes, and loaded daily riding.
SMART CONNECTIVITY
The integrated rear wheel lock quickly immobilises the bike between stops, while GPS/4G tracking and unusual activity alerts help monitor its location. Apple Watch connection adds everyday convenience, letting riders power off, engage the lock, and track rides from the wrist.
COMFORT & SMART SHIFTING
A 100mm suspension fork, suspension seatpost, adjustable stem, and commuter-focused geometry help smooth rough roads and fine-tune your riding position. Aventon E-Shifter and AutoShift technology keep cadence natural as speed, terrain, and traffic change.
APPLE WATCH CONNECTION
Control your Level right from your wrist! Introducing Apple Watch Connectivity, integrated control right from your wrist. Power your bike off, engage the E-Lock, and track your rides from your Apple Watch.
INTEGRATED WHEEL LOCK
Built-in security, lock your hub instantly to prevent bike thefts. Quickly secure your Level 4 ADV between errands or a mid-ride coffee thanks to the integrated rear wheel lock that immobilizes your rear wheel and further deters theft.
E-SHIFTER & AUTOSHIFT
The Aventon E-Shifter offer simple and precise shift quality, while the AutoShift functionality ensures riders are always in the opitmal gear for their preferred cadence and riding speed. No more mis-shifts or gearing uncertainty.
4G+GPS TRACKING
Keep An Eye On Your Ride. Easily check your bike's location through the Aventon app for peace of mind when your adventures take you off the bike. Rest easy knowing you'll receive an immediate alert on your phone if someone tampers with or moves your bike when it's parked or stored.
We reserve the right to modify product specifications and details without prior notification.
Length measurements are provided in millimeters and degrees, unless specified otherwise.
If you are outside of the size range or unsure of the best fit, give us a call and we'll help get you on the right bike.
| Size | Age | Range (cm) | Range (ft & in) |
|---|---|---|---|
| 12" (Balance) | 2 - 4 | 80 - 100 | 2'6" - 3'1" |
| 16" | 4 - 7 | 100 - 120 | 3'4" - 4'0" |
| 20" | 7 - 9 | 120 - 135 | 4'0" - 4'5" |
| 24" | 9 - 11 | 135 - 145 | 4'5" - 4'9" |
If you are outside of the size range or unsure of the right fit for you, give us a call or come in and visit your local store to talk about your best options.
Explore our series of how-to video guides designed to walk you through every stage of assembling and fine-tuning your new Aventon Level 4 ADV ST – Mid-Drive Commuter eBike - Purple Haze. Whether you watch the entire series or focus on specific tasks, we've got you covered. Our dedicated Customer Service team is here to offer expert advice and ensure your bike is ready for the road.
Planning to assemble at home? Remember to install the pedals with care. Make sure to align them square and gently tighten to avoid stripping the threads.
(See below for more information)
Rider Reviews

Integrated lighting to keep you visible and safe on the roads.

Just pedal and the bike will simply and automatically find the ideal gear for you to maintain your cadence. The next big thing in eBikes!

Integrated wheel lock, unusual activity detection, 4G tracking and geo-fencing features - all controlled by you.

With 100Nm of torque and Ride Tune customisation, you'll experience a natural, smooth power ramp-up that feels like an extension of your own legs.
Electronic Auto Shift: Always the opitmal gear for preferred cadence and riding speed.
Frame Integrated Battery: 800Wh/20Ah 36V for up to 180km range.
Replace the car: Integrated indicators and brake lights.
Ultro S Mid-Drive Motor: Smooth assistance with impressive 100nm torque.
Thoughtful Extras: Integrated lighting, suspension seatpost, heavy-duty cargo rack, mudguards and kickstand.
eBike Finance Options
Ride now, pay later. Explore our flexible finance options tailored for your eBike purchase.
eBike Buying Guide
Ready to choose the right eBike for you? Dive into our extensive guide all things electric!
Before using this vehicle, check the applicable local laws relating to your intended use of the vehicle on roads and road related areas.
Our Aventon Level 4 ADV ST – Mid-Drive Commuter eBike - Purple Haze includes the industry-leading Reid Warranty: lifetime on frame and rigid forks, 2 years on non-consumable parts and 1 year/5,000 km (whichever comes first) warranty on eBike system components. Shop online to enjoy a 30 Day Test Ride to guarantee you get a great deal.
Home Delivery
Our bikes are shipped in a box 85% assembled and require basic assembly, like turning handlebars and inserting pedals. Check out our Assembly Videos that give instructions on how to do this.
eBikes FAQ
Q. How far can I travel on a full charge?
The range you can expect depends on the motor, size of battery and how hard the battery is working. This will be affected by factors like the weight of the rider, how much luggage you’re carrying, tyre pressure, hills/terrain, road condition, wind and the level of assistance or power setting you use.
We will list the distance you can expect to ride under ideal conditions in the product details section of each Electric Bike.
As a general guide though, the range varies from around 60km per full charge for our 10.4Ah battery hub motor eBikes, up to 100-120km+ for our 14Ah Ananda mid-mount eBikes and 20Ah rear hub motor bikes.
Q. How do I charge an Electric Bike and how long will it take?
Simply plug the charger into a standard wall socket at work or when you get home. To charge the battery from 0% to 80% will take 2 hours, 100% in 4 hours. Most of the time though you’ll just need to top up rather than completely refill. Charging times are similar for most of the systems we sell.
Q. What are the benefits of a hub motor style eBike?
For commuting and touring electric bikes designed for use on roads and paths, rear hub motors offer a more discrete, lighter and more affordable choice over a mid-mount motor design.
Bafang are the largest rear hub eBike manufacturer in the world and growing rapidly in Europe and the US. The motor is light and unobtrusive at only 2.9 kg, recharge time is quick and the range is good. Considering how affordable these ebikes are, a new electric bike now makes a lot of sense for more people.
Q. What are the benefits of a mid-mount motor style eBike?
The mid-mount position offers more options in terms of gearing, smoother acceleration and lowers the centre of gravity of the bike giving a more stable ride over broken ground or when cornering. This benefit is really felt when off-road or riding at speed.
Mid-drive motors are especially preferred by riders looking for more torque when riding (perfect for pinch climbs on a Mountain Bike). Unlike a hub-drive motor, the mid-drive motor directly drives the crank instead of the wheel. This has the benefit of multiplying power and allowing the bike to better take advantage of existing gears.
Q. Can I ride an eBike in the rain?
Yes, all of these units are sealed and made for all-conditions riding.
Q. Can I switch off the motor and ride it like a normal bike?
Yes. Remove the battery pack and it will feel very much like a normal bike.
Q. What does 'Pedelec' mean?
The most popular electric bike system in Australia is the pedelec (or pedal assist) system. You ride a pedelec by pedalling as normal, while the electric motor adds power to each pedal stroke - flattening out the hills and getting you up to speed with much less effort.
Q. How much does it cost to charge an eBike?
It depends on the battery, but as an example using a standard 418Wh battery:
At 30c/kWh x 0.418kWh = 12.5c for a full charge. Costs are similar with the Bafang and Ananda systems.
100km for 12.5c and a fraction of the carbon output of a car - yes, this is the future of personal transport.
Q. How often should I service my Electric Bike?
The same as we would recommend for any bicycle.
We recommend your electric bike is serviced during the first 3 months of ownership as components bed in. Frequency of servicing after that depends on usage and what maintenance you choose to do yourself in terms of caring for the chain and other basic tasks. A regular rider who does not perform any maintenance may benefit from servicing every 6 months.
Q. How can I safely handle and use a Li-ion Electric Bike battery?
Lithium Ion batteries are a powerful technology that have given us handy cordless tools and devices from mobile phones and laptops, to power drills, vacuum cleaners and now electric bikes.
This is an increasingly common power source that is here to stay, and is safe if handled properly. Read our full safety guide here.
More questions? See our eBike Buying Guide