woom UP 5
An ultralight 24" electric mountain bike with a suspension fork, updated Fazua drive and disc brakes designed for children aged 7 years and over.
Get ready to supercharge mountain biking as you know it!
Whether tackling gravel, commuting to school, shredding the trails, or reaching far-flung peaks, the woom UP turns every ride into an adventure.
The woom UP 5 is a well-rounded, dynamic electric mountain bike intended for kids aged 7 and up. With cadence and torque sensors built into the motor, the woom UP 5 provides for a smooth, natural ride, while enabling your Rider to go further.
Created with children in mind, the bike features kid-specific geometry and enhanced safety features. For instance, at speeds upwards of 15.5mph, the motor-assist automatically switches off and allows the Rider to use their own pedal power to go faster.
With great power comes great responsibility. As a new e-bike owner, woom has a few recommendations before your kid's first ride. We advise checking your state and local laws on e-bikes, always wearing a helmet, high-vis clothing and having bike lights, and being mindful when mounting and dismounting since e-bikes are heavier than traditional bikes. To find out more information on the legality of e-bikes in your location, check out our blog on the topic.
E-Motor
- FAZUA Ride 50 Trail Drivepack
- 250 watt max power output/350 Watt short-term in boost function
- Energy 250X battery with 250 watt capacity
- 58Nm torque
- Up to 15.5 mph pedal-assist
- Three support modes
- Removable motor and battery unit (7.2 lbs)
- Frame-integrated bottom bracket houses dual-sided torque and cadence sensors for natural-feeling engagement of drive system
- Pairs with FAZUA Rider app to view bike data including speed, mileage, battery charge, navigation, and more.
Frame
- Frame material: lightweight, high-quality 6061 T6 aluminum with butted and hydroformed tubes
- 24″ wheels
- Easy-access low top tube to assist dismounting
- Long wheelbase and low center of gravity to aid balancing
- New, dropper seatpost-ready frame design
- Featuring woom-specific molded chainstay protector
Gears
- 11 speeds
- SRAM NX trigger shifter
- SRAM NX rear derailleur
Suspension Fork
- F1RST hydraulic air suspension fork with 80 mm travel, adjustable compression and rebound damping, plus lock-out
- 1 – 1 ⅛″ tapered steerer tube
- 100 x 15 mm thru axle
- Post mount for disc brake
Wheels
- Tubeless-compatible Alexrims wheelset
- Aluminum hubs with sealed industrial bearings
- Thru axles for maximum torsional strength (100 x 15 mm front and 135 x 12 mm rear)
- 20 spokes, double-crossed spoking
- Aluminum nipples
Headset
- Fully integrated 1 – 1 ⅛″ headset
- Sealed industrial bearings
Tires
- 24 x 2.35″ Schwalbe Rocket Ron with ADDIX SPEED rubber compound
- Quality mountain bike tires with low rolling resistance, maximum grip, good shock absorption and excellent durability
- Presta valves, tubeless conversion ready
Stem
- Forged aluminum
- CNC-machined
- Handlebars attached via two clamps
- Rise/drop: +/-15° with flip-flop design to adjust handlebar height
- Length: 50 mm
Seat
- Size specific, ergonomically designed to fit children's anatomy
- Streamlined mountain-bike specific saddle design
- Side protection to lean against walls
Handlebars
- Wide, ergonomically adapted and lightweight aluminum bars for more control
- Tapered end to fit child’s hand
- Sandblasted and silver anodized
- Width: 585 mm
- Rise: 20 mm
Seatpost
- 27.2 x 250 mm
- Anodized aluminum seatpost with insertion marks that indicate the minimum insertion depth
Grips
- Child-friendly thanks to small diameter
- Single-clamp grip to prevent twisting
- Safety zone: extra rubber on palm-facing portion of grip for added comfort
- 100% silicone for maximum grip
Seatpost Clamp
- Quick-release seatpost clamp for easy adjustments
- Made from aluminum
Drive
- Lightweight, forged aluminum 5.1" (130 mm) kid-specific cranks with narrow tread (Q-factor)
- Narrow-wide chainring with 28 teeth in the front
- Cassette with 11-42 teeth in the back
- Flat pedals made from fiber-reinforced nylon
- Chromoly axle and sealed industrial ball bearings
Brakes
- Hydraulic disc brakes by Promax
- Rotor diameter front/back: 160/160 mm
- Ergonomic brake levers designed for children's hands
Weights
- Bike weight: 36 lbs 3 oz
- Max weight: 175 lbs combined weight of Rider + cargo
Enclosed Tools
- 4 mm hex key: used for attaching handlebar to stem, adjusting seatpost clamp
- 8 mm hex key: used for attaching pedals to crank arms
- (2) Keys: used to lock in battery/drive pack, extra key included
- Micro USB cable: USB 2.0 A - Mini B cable, used to plug the bike into the owner's computer
- Ride 50 Trail battery charger: used to charge the Energy 250X battery
- NOTE: It is recommended to keep the battery box for potential future warranty purposes.
Shipping Dimensions
- 70” x 38” x 9.5”
Model | Inseam | Height |
| woom UP 5 | 28″ - 33.5″ | 50″ - 57″ |
| woom UP 6 | 30.9″ - 37.4″ | 55″ - 65″ |
Unsure how to measure inseam? Can't decide between two sizes? Check out our What Size is Right?article
In this video, you'll find comprehensive instructions on assembling your new woom UP.
You can find more information in our service and help area.
The woom 10-year warranty
Inspiring children to love riding their bikes is our mission at woom. That's why we guarantee the premium quality of every bike down to the last detail with innovative technology and long-lasting materials.
We have full confidence in our bikes, which is why we offer a 10-year warranty on the aluminum frames, rigid forks, bars and stem once you've registered online.
Register now!
30-Day Return Policy
If you buy a product directly from us that does not meet your expectations for any reason, you can return it within 30 days of the purchase — no questions asked. We will refund the full cost of the product and pay to have it shipped back to woom. Please note: We are unable to refund the original shipping cost from when you first purchased the product. The refund for the cost of the product and return shipping cost will be processed within 5-7 business days upon receiving the shipment.
Return Procedures
If you are returning a product, please initiate a return by clicking the link below. Please read through the following tips if you are returning multiple items or upcycling to ensure your return process goes as smoothly as possible. Thank you!
Keys to Success
- If you are returning a combination of any of the following items that cannot fit in the same box, please do this in 2 separate returns. Items include: Any model bike, helmet, rack, freewheel, or fenders. For example, if you are returning a woom bike and helmet/large accessory, one return would contain the bike, and the other return would contain the helmet/ large accessory.
- The same rule applies if you are returning multiple bikes. Please do a separate return for each bike.
- Please ensure you are choosing the correct reason for return in order to get the correct return label.
All domestic shipping costs after the initial shipment to you will be covered by us. We will send you a return shipping label and all you have to do is pack it up and bring it to the shipper.
For questions, please email [email protected]. You can also give us a call at 855-966-6872. We are here to help you.
The woom 10-year warranty
Inspiring children to love riding their bikes is our mission at woom. That's why we guarantee the premium quality of every bike down to the last detail with innovative technology and long-lasting materials.
We have full confidence in our bikes, which is why we offer a 10-year warranty on the aluminum frames, rigid forks, bars and stem once you've registered online.
If you spot a difference between the product page and what you received, it’s likely due to a change in our supply chain. Our Customer Experience team is always here to answer any questions that you may have.