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Ultro S Mid-Drive Motor (100Nm Torque)
Refined Power for Urban Adventure
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Level 4 ADV Ebike
This product has been discontinued — here are some great alternatives
This product is currently unavailable — here are some great alternatives
Compatible Accessories
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800Wh Keyless Removable Battery
Easy Battery Access
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Up to 110 Miles Range
Take Your Adventure Even Further
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Suspension Fork & Seatpost
100mm of Suspension and Suspension Seatpost
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E-Shifter & Customizable AutoShift
Not Autopilot, But the Next Best Thing
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Adjustable Stem & Rider-Friendly Geometry
Customizable Comfort
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4G / GPS Real-Time Tracking
Keep An Eye On Your Ride
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Integrated Rear Wheel Lock
Built-in security, lock your hub instantly to prevent bike thefts.
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Unusual Activity Detection & Alerts
Stay Up-To-Date
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Apple Watch Connection
Stay Connected On Your Apple Watch!
Which one suits you best?
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Features
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Level 4 ADV Ebike
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Level 4 REC Ebike
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| Ebike Model |
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| Price | $2,799.00 | $1,999.00 |
| Colors |
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Weight
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61lbs
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68.5lbs
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Motor
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Aventon Ultro S Mid-drive Motor, 100Nm Motor Torque, 750W Peak Power
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Hub Motor, 80Nm (96Nm in Boost Mode), 1188W Peak (1440W in Boost Mode)
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Frame
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6061 Aluminum
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6061 Aluminum
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Fork
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100 mm Travel, Adjustable Coil Spring with Preload Adjustment and Lockout, 15x100 mm Thru Axle, 43 mm Offset, Tapered Steerer Tube
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80 mm Travel, Adjustable Coil Spring with Preload Adjustment and Lockout, Nutted Axle
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Smart Features
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Uphill Start Assist, E-Shift, Autoshift, Ride Tune, 4G/GPS, Unusual activity detection, E-lock, Hold Mode, Remote Notification
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Regenerative Braking, Ride Tune, 4G/GPS, Unusual activity detection, E-lock, Hold Mode, Remote Notification
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Range
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Up to 110 Miles
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Up to 75 Miles
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Battery
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Removable Lithium-Ion. 36V, 20Ah, 800Wh, Samsung 21700 58E cells
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Removable Internal Lithium-ion. 36V, 20Ah, 733Wh, LG 21700 cells
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Front Brake
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Tektro HD-M3120 2-Piston Hydraulic Disc Brakes
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Tektro HD-E3520 2-Piston Hydraulic Disc w/ E-Cutoff
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Rear Brake
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Tektro HD-M3120 2-Piston Hydraulic Disc Brakes
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Tektro HD-E3520 2-Piston Hydraulic Disc w/ E-Cutoff
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Throttle
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Compatible, Not Included
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Included
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Rear Derailleur
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Shimano Cues 10-Speed
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Shimano Altus RD-M310
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Shifter
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E-Shifter
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Shimano 8-Speed Trigger
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Cassette
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Shimano Cues 10-Speed 11-39T
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Shimano CS-HG200-8 8 speed Cassette, 12-32T
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Crankset
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165mm ISIS Splined
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165mm
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2 Year Warranty
from the date of purchase
Lifetime Frame Warranty
*with ebike registration
1,800+ Bike Shops
for maintenance, service, and repairs
General Info
Weight
61lbs
Total Weight Limit
300 lbs
Rider Height
Medium - 5'3"-5'10". || Large - 5'10"-6'4". || Extra Large - 6'4"-6'7"
Ebike Class
Class 1 (Convertible to Class 2 and/or Class 3)
Water Resistance
Bike - IPX6 // Motor - IP67
Range
Up to 110 Miles
Safety Certifications
Battery Safety Certifications
Ideal Use
Commuting
Frameset
Frame
6061 Aluminum
Fork
100 mm Travel, Adjustable Coil Spring with Preload Adjustment and Lockout, 15x100 mm Thru Axle, 43 mm Offset, Tapered Steerer Tube
Rear Spacing
135mm
Fork Spacing
100mm
Frame Style
Step-Over
Wheelset
Front Wheel
27.5" Double Wall Aluminum, 36H
Rear Wheel
27.5" Double Wall Aluminum, 36H
Tires
Kenda K1052, 27.5x2.2"
Ebike System
Motor
Aventon Ultro S Mid-drive Motor, 100Nm Motor Torque, 750W Peak Power
Motor Torque
100Nm
Motor Power
750W Peak
Display
A280 Center Display
Battery
Removable Lithium-Ion. 36V, 20Ah, 800Wh, Samsung 21700 58E cells
Battery Weight
8.7lbs
Throttle
Compatible, Not Included
Charger
42V 4A charger
Charging time from 0% to 100%
5 hours
Lights
Front and rear lights integrated
Smart Features
Uphill Start Assist, E-Shift, Autoshift, Ride Tune, 4G/GPS, Unusual activity detection, E-lock, Hold Mode, Remote Notification
Brakes
Front Brake
Tektro HD-M3120 2-Piston Hydraulic Disc Brakes
Rear Brake
Tektro HD-M3120 2-Piston Hydraulic Disc Brakes
Front Brake Rotor
180mm 6 bolt
Rear Brake Rotor
180mm 6 bolt
Brakes
Hydraulic
Drivetrain
Rear Derailleur
Shimano Cues 10-Speed
Chainring
48T
Crankset
165mm ISIS Splined
Pedals
9/16" Composite Platform
Shifter
E-Shifter
Chain
9/10/11 speed 126L
Cassette
Shimano Cues 10-Speed 11-39T
Cockpit
Saddle
Aventon Saddle
Seatpost
Aventon Suspension Post, 30.9mm, 50mm Travel, 400mm Length
Seatpost Clamp
34.9mm
Handlebars
31.8mm, 680mm Width, 30mm Rise
Grips
Aventon Lock on grips
Included Accessories
Rear Rack
Included
Fenders
Included
Integrated Lights
Included
Let’s get you fit
Enter your height to see your recommended bike size
Based on your height, we see that you would be a good fit for sizes.
Based on your height, we recommend you get a “ ” for the best ride fit.
This bike may not be a great fit based on your height. Please reach out to our support team for specialized assistance.
Size height/inseam range
Rider Height
Inseam Range
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Height:
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Inseam:
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This bike is available in multiple sizes to suit most adults.
| Frame Size | Medium | Large | Extra Large |
|---|---|---|---|
| A - Seat Tube Length | 425mm | 450mm | 520mm |
| B - Top Tube Length Horizontal | 614mm | 632mm | 649mm |
| C - Bottom Bracket Drop | 65mm | 65mm | 65mm |
| D - Head Tube Length | 120mm | 130mm | 140mm |
| E - Head Tube Angle | 69° | 69° | 69° |
| F - Seat Tube Angle | 74° | 74° | 74° |
| G - Rear Chainstay Length | 480mm | 480mm | 480mm |
| H - Front Wheel Center | 704mm | 722mm | 741mm |
| I - Wheelbase | 1176mm | 1195mm | 1214mm |
| J - Reach | 430mm | 445mm | 460mm |
| K - Stack Height | 642mm | 652mm | 661mm |
| L - Fork Length | 515mm | 515mm | 515mm |
| M - Fork Offset | 46mm | 46mm | 46mm |
| N - Trail | 84.3mm | 84.3mm | 84.3mm |
| Wheel Size in Inches | 27.5" | 27.5" | 27.5" |
| Stand Over Height | 699mm | 743mm | 766mm |
| Rider Height (Range) | 162cm - 179cm (5'3" - 5'10") | 180cm - 189cm (5'10" - 6'4") | 190cm - 195cm (6'4" - 6'7") |
The mid-drive gives a more natural, more refined pedaling experience. The Ultro mid-drive series also facilitates some of our newest tech, such as E-Shift and AutoShift, which when combined with Auto Mode, creates a seamless ride experience.
The Ultro S is our 100Nm mid-drive motor, with enough power to propel you through city streets and urban climbs. The Ultro X is tailored for eMTB specifically, and has features that would be unnecessary on a platform like the Level.
The best way to dial in AutoShift is to continue to explore the settings in the app and on the display. Although default cadence is 60, some more experienced riders may find that they prefer a higher cadence.
Level 4 ADV comes in four sizes (S-XL). Please refer to our sizing chart to find which bike fits you best.
Yes, you can purchase a throttle from Aventon and install it on the Level 4 ADV, converting it to a Class 2 ebike. Please note that the throttle response on a mid-drive bike is a much different experience and will feel much more sluggish than a regular hub-drive throttle.
Level 4 ADV comes out of the box as a Class 1 eBike, meaning no throttle and a max pedal assist speed of 20mph. However, the Level 4 ADV is throttle-compatible and able to be unlocked to a pedal assist speed of 28mph.
Aventon does not sell conversion kits. All Aventon bikes are already designed with electrical components, such as integrated batteries, motors, and sensors for an optimal riding experience.
Taking care of your ebike battery is an integral part of getting the most out of your Aventon ebike. Here are a few things to remember:
- 1. Charge your battery regularly to avoid fully draining your battery’s stored energy or voltage.
- 2. Use the right charger. Only use an Aventon branded and proper model charger (Be sure to place the charger brick on a flat, non-flammable surface like metal or concrete. The charger brick will conduct heat while charging.)
- 3. Avoid overcharging your ebike.
- 4. Avoid extreme temperatures. Store and charge the battery in a climate-controlled area, keeping it away from both extreme heat and cold.
- 5. Maintain the right level of charge. The battery should be stored at 75% charge to its health.
- 6. Avoid heavy loads. Do not exceed the bike’s recommended maximum capacity.
- 7. Keep your battery, terminal, & ports clean.
Some Aventon models, such as the Level 2, Level 3, Abounds, Sinch 2, & Aventure 2, come with pre-installed fenders and a rear rack. Additional accessories are available for purchase. Explore a wide-range of Aventon accessories, including helmets, locks, bike pumps, and so much more to add to your next riding adventure.
All Aventon-branded frames, framesets, components, and batteries come with a 2-year warranty. Learn more about the Aventon warranty.
Electric bikes require regular maintenance tune-ups similar to traditional bikes and cars. To get the best performance out of your ebike, regularly check tires, tubes, chains, battery, and brakes, or visit a local bike shop for professional assistance. Performing a pre-ride safety check helps maintain your ebike, as well as staying up-to-date on non-electric component maintenance and repairs.
The torque sensor design is more intuitive for the rider at high and low speeds, it’s more efficient, has smoother power delivery, and is less prone to damage as the sensor is internal opposed to the external cadence sensor.
*Aventon has the right without notice to the consumer to substitute components of at least equal quality for advertised Aventon ebike components in the event of the unavailability of such advertised components. More info.
**Max range is estimated based on a rider weighing 165 lbs (75 kg) on a paved, flat road, in Eco Mode, with Ride Tune set to the default settings. Actual range will vary depending on rider weight, terrain, weather conditions, tire pressure, and cadence.
†Certain features of this electric bike require a 4G data connection. A complimentary 4G connection subscription is included for the first year, beginning from the product service registration date. The 4G connection subscription service enables seamless access to advanced connectivity features including, but not limited to: GPS Location, 4G cellular communication activation, 4G cellular communication, Lost bike reporting, Remote Shutdown, Periodic status reports, Riding statistics summary information, Alarm and operation prompt sound, Vibration monitoring when powered off, Periodic status reporting when powered off, Transportation Mode, Key information synchronization, and Geofencing. After the first year, a paid 4G connection subscription will be required to maintain access to these services. Please note that data subscription fees and terms may apply.
For additional lithium-ion battery safety tips and information, including with respect to the use, charging, and storage of lithium-ion batteries, please click here to review safety information published by New York City.
What People Are Saying
Customer Reviews
Based on 1831 reviews
84%
(1537)
12%
(219)
3%
(59)
0%
(7)
0%
(9)
R
I purchased the REC 4 as I had previously been impressed using another model on vacation
The REC 4 is a great bike for suburban and urban driving and as well with acceleration on hills and makes riding a breeze. The four boost level levels enable you to ride with a level of assist to your own choosing. Very satisfied with the purchase.
Hi there,
Thank you for your review. We are delighted to hear that your experience with our bikes on vacation inspired you to choose the Level 4 REC for your own collection. It is wonderful to know that the four levels of pedal assist and responsive hill-climbing power are making your rides such a breeze. Thank you for choosing Aventon, and happy riding!
Regards,
Aventon
J
I am really happy with how this bike works and am enjoying riding it very much! The automatic gear change option is awesome. Thank you!
Hi there,
Thank you for your review. We are thrilled to hear how much you are enjoying your new bike and that the automatic gear shifting has elevated your riding experience. Designing intuitive technology that makes every ride smoother and more effortless is central to our mission at Aventon. Thank you for being a part of the Aventon family, and we wish you many more fantastic miles ahead!
Regards,
Aventon
T
This is our third Aventon Bike. Sold my Adventure 2 and just got a Level 4 Rec. It's a nice mid-way point between the Adv 2 and the wife's Pace 500. So far, with all the new features etc., really like it over the Adventure 2.
The Adventure 2 did ride nice, but was a bit bulky to load on a bike rack, work on, and maneuver around. It seemed like a small motorcycle at times.
Level 4 Rec is a lot more nimble, easier to load, and has some really great features that you can't find anywhere else in the market for the price. Great value!
Every bike we've bought came in great shape, with no issues, and easy to assemble. Excellent quality!
Bike number four in the future? Let's get some miles on these two first! LOL But, when it comes time again, Aventon will be the first place we look.
Hi Tony,
Welcome back for bike number three! It is awesome to hear how the Level 4 REC hits that ideal middle ground for you between the heavy-duty Aventure 2 and your wife’s Pace 500. Getting that lighter, more nimble handling while still keeping top-tier features makes loading up for rides so much smoother. We appreciate your loyalty to Aventon over the years, and we hope you and your wife log plenty of great miles together before you even think about number four!
Regards,
Aventon
J
The bike is better than my level 2 in every way, except the charging port. You shouldn’t have to take the battery off each time to charge the bike. It’s not easily accessible. That’s the only negative I see with the level 4.
Hi James,
Thanks for following up! We are so glad to hear the Level 4 REC feels like such a major step up from your Level 2 across the board. You actually do not have to pull the battery pack out every time you charge, like you might be used to doing. The frame has a built-in charge port on the lower section of the down tube, protected by a small rubber dust cap. Just peel that rubber flap back and plug the charger directly into the bike frame; no unlatching or battery removal required. If you ever have trouble locating the port cover, our support team is always happy to guide you!
Regards,
Aventon
D
This is my first bike, and first e-bike. Ordered the bike on sale, and it came straight to my door. Instructions and tools made setup really easy. Was able to start riding immediately and the features and build make me confident to be able to get on and go. Great bike!
Hi there,
Thank you for your review. We are honored that your very first e-bike is an Aventon! It is fantastic to hear that your order arrived smoothly, that assembly was straightforward with the included tools, and that you were able to hit the road right away with confidence. Hearing how much you love your new ride means the world to us. Thank you for choosing Aventon, and welcome to the Aventon family!
Regards,
Aventon
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