Beginner's Guide to eBike Maintenance

Not sure which Babymaker you have? You are not alone. There have been five Babymaker models since 2020: three sold under our former name, FLX Bike, and two current Superhuman Bikes models. At a glance they look almost identical. This guide shows you how to tell what Babymaker you have in under a minute.

Quick answer: which Babymaker do I have?

Check three things: the drivetrain, the handlebar and the cranks.

  • Chain drive + drop or bullhorn bars = the original Babymaker (FLX, 2020).
  • Chain drive + flat bar = the Babymaker II Classic (Superhuman, 2025).
  • Belt drive + drop or bullhorn bars = the original Babymaker Pro (FLX, 2020).
  • Belt drive + flat bar + square cranks and a torque sensor = the Babymaker II Pro (Superhuman, 2025).
  • Belt drive + flat bar, without those = the Babymaker II (FLX, 2022).

Which Babymaker do I have? If this, then that

Three checks identify any Babymaker: drivetrain, handlebar, cranks What connects pedals to rear wheel? a rubber belt a metal chain Belt drive + disc brakes Next: what shape is the handlebar? Chain drive + rim brakes Next: what shape is the handlebar? drop or bullhorn flat bar drop or bullhorn flat bar Babymaker Pro FLX, 2020 Square cranks + torque sensor? Superhuman logo on the frame? no yes Babymaker (original) FLX, 2020 Babymaker II Classic Superhuman, 2025 Babymaker II (FLX) FLX, 2022 Babymaker II Pro Superhuman, 2025 Current Superhuman models. White boxes are earlier FLX models.

Start with the drivetrain, then the handlebar. Only the flat-bar belt bikes need a third check, because the FLX Babymaker II and the Superhuman Babymaker II Pro share a belt, disc brakes and a flat bar.

The difference between Babymakers at a glance

Every Babymaker is a single-speed, pedal-assist e-bike with a rear hub motor and a battery hidden in the frame. The differences are in the drivetrain, sensor, brakes, battery and handlebar.

Babymaker Babymaker Pro Babymaker II Babymaker II Pro Babymaker II Classic
Brand FLX FLX FLX Superhuman (current) Superhuman (current)
Year 2020 2020 2022 2025 2025
Drive Chain Gates belt Gates belt Gates belt Chain
Pedal sensor Cadence Cadence Cadence Torque Cadence
Brakes Rim Hydraulic disc Hydraulic disc Hydraulic disc Rim
Battery 7Ah 7Ah 10Ah 10Ah 10Ah
Handlebar Drop or bullhorn Drop or bullhorn Flat Flat Flat
Cranks Standard Standard Standard Square Square

How to tell what Babymaker you have: 5 quick checks

Work down the list. Most riders have their answer after the first two.

  1. Look at the drivetrain. Follow the loop from the pedals to the rear wheel. A black, toothed rubber belt means a Babymaker Pro, Babymaker II or Babymaker II Pro. A metal chain means the original Babymaker or the Babymaker II Classic.
  2. Look at the handlebar. Drop or bullhorn bars mean a 2020 FLX model. A straight, flat bar means a Babymaker II.
  3. Look at the cranks and the logo. Square cranks and Superhuman branding mean a current Superhuman model. FLX branding means one of the three earlier models.
  4. Check the battery label. 7Ah means a 2020 FLX Babymaker or Babymaker Pro. 10Ah means a Babymaker II of any kind.
  5. Notice how the assist feels. The Babymaker II Pro uses a torque sensor, so power builds with how hard you pedal. Every other Babymaker uses a cadence sensor, so assist switches on once the pedals are turning.

Bought it second-hand with no paperwork? Checks 1 to 3 are all you need. If you still have your receipt or order email, it will name the exact model.

FLX Babymaker vs Superhuman Babymaker

FLX Bike rebranded to Superhuman Bikes. The original Babymaker launched on Indiegogo in 2020, and the Babymaker II followed in February 2022, both under the FLX name. The Babymaker II Pro and Babymaker II Classic are our current Superhuman models, both from 2025. All five are supported by the same team.

Babymaker vs Babymaker II: what changed?

The 2022 Babymaker II swapped the drop or bullhorn bars for a flat bar and moved from a 7Ah to a 10Ah battery. The Superhuman Babymaker II Pro kept that layout and added square cranks and a torque sensor. Read the original Babymaker II launch post.

Babymaker II Pro vs Babymaker II Classic

These are the two Babymakers we sell today. Both have a flat bar, square cranks and a 10Ah battery. The Pro adds a Gates Carbon belt drive, hydraulic disc brakes and a torque sensor. The Classic keeps it simple with a chain drive, rim brakes and a cadence sensor, at a lower price.

Why it matters which Babymaker you have

Knowing your model gets you the right parts the first time.

  • Batteries and chargers: the 7Ah and 10Ah batteries are different packs.
  • Drivetrain parts: belts and chains are not interchangeable.
  • Brake parts: disc brake pads and rim brake pads are different parts.
  • Support: telling our team your exact model speeds up any service request.

Need help confirming your model? Send a photo of the drive side of your bike to support@superhumanbikes.com or call 858-901-7988.

Frequently asked questions

Which Babymaker do I have?
Check the drivetrain, then the handlebar. A chain with drop or bullhorn bars is the original Babymaker. A chain with a flat bar is the Babymaker II Classic. A belt with drop or bullhorn bars is the Babymaker Pro. A belt with a flat bar is a Babymaker II: square cranks and a torque sensor mean the Superhuman Babymaker II Pro, otherwise it is the FLX Babymaker II.

How many Babymaker models are there?
Five. The Babymaker (2020), Babymaker Pro (2020) and Babymaker II (2022) were sold under the FLX name. The Babymaker II Pro and Babymaker II Classic (both 2025) are the current Superhuman Bikes models.

What is the difference between the Babymaker and the Babymaker II?
The Babymaker II has a flat bar instead of drop or bullhorn bars and a 10Ah battery instead of 7Ah.

What is the difference between the Babymaker II Pro and the Babymaker II Classic?
Both have a flat bar, square cranks and a 10Ah battery. The Pro has a Gates Carbon belt drive, hydraulic disc brakes and a torque sensor. The Classic has a chain drive, rim brakes and a cadence sensor.

Is my FLX Babymaker the same as a Superhuman Babymaker?
FLX Bike rebranded to Superhuman Bikes, so FLX Babymakers are earlier models of the same family and are supported by the same team. The current Superhuman models are the Babymaker II Pro and Babymaker II Classic.

How do I know if my Babymaker has a 7Ah or 10Ah battery?
Read the label on the battery or charger. The 2020 FLX Babymaker and Babymaker Pro use 7Ah. Every Babymaker II, FLX or Superhuman, uses 10Ah.

 

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Frequently Asked Questions

Have a question? We've got answers.

What's the best commuter ebike?

For daily commuting, the Babymaker II Pro is our most popular pick. It weighs just 35 lbs — light enough to carry up stairs or onto transit — and its Gates Carbon Belt Drive means virtually zero maintenance. A single charge gets you 20–70+ miles depending on assist level.

If you want cargo capacity and a more upright position, the Moonrider is a great alternative with dual racks and a Bafang mid-drive motor that handles hills with ease.

What's the best lightweight ebike?

Our current Babymakers, the Babymaker II Pro and Babymaker II Classic, both weigh in the low-to-mid 30s (lb). That’s light enough to carry up stairs or store under a desk. Choose the Pro for a belt drive, hydraulic disc brakes and a torque sensor, or the Classic for a simpler chain-drive setup at a lower price.

Do I need a license to ride a Superhuman ebike?

In most US states, no license, registration, or insurance is required to ride an ebike — as long as it meets federal ebike classification standards. Most Superhuman models meet these requirements. Rules vary by state and municipality, so we recommend checking your local laws, especially for Class 3 bikes on trails or shared paths.

What's a fat tire ebike?

Fat tire ebikes feature oversized tires — typically 4 inches wide or more. Those wide tires give you more traction on loose surfaces like sand, gravel, and snow, better shock absorption, and increased stability at low speeds or in technical terrain. Great for riders who want to go off the beaten path or ride year-round regardless of conditions.

If you're looking for the best fat tire electric bike for all-terrain riding, the Superhuman Bikes Bomber is our top pick. The Bomber is a 750W scrambler-style fat tire ebike built to go anywhere — sand, trails, dirt roads, or city streets. It runs on a 48V 17Ah battery with 40+ miles of range, 20-inch fat tires for maximum grip, hydraulic brakes, dual suspension, a comfortable bench seat, and optional foot pegs for a moto-inspired feel. Available in multiple colors and two configurations, it's one of the most capable and versatile fat tire ebikes on the market.

What's the best ebike for beginners?

We recommend the Moonrider or the Photon for riders new to ebikes.

The Moonrider has a step-through frame (easy to mount and dismount), an intuitive mid-drive motor, and comes with front and rear racks so you can start using it for real errands right away. Its Shimano 10-speed lets you gradually learn how to blend pedal assist with gear selection.

The Photon is a great option if you want something lighter with a throttle option, so you can start by letting the bike do the work and increase your own pedaling input as you get comfortable. It ships 95% pre-assembled — front wheel, pedals, and handlebars and you're ready to ride. (And they glow in the dark!)

How long does shipping take?

All in-stock Superhuman bikes ship within 3–7 business days of order confirmation. You'll receive a tracking number via email once your order leaves our warehouse. For the most current availability on specific models, check the product page or contact our support team.

What's the longest range ebike in your lineup?

The Weapon leads the lineup with 70+ miles of range on its 840Wh battery — the highest-capacity battery we offer. The F5 Trail also carries an 840Wh battery and delivers 50+ miles per charge under typical conditions.

Real-world range depends on rider weight, terrain, wind, temperature, and how much you pedal vs. rely on the motor. Using lower assist levels and pedaling more actively will always extend your range.

Standard Warranty

At Superhuman Bikes, we are committed to delivering products of the highest quality. All Superhuman Bikes are warranted against manufacturing defects in materials and workmanship for one year from the date of delivery. The warranty excludes normal wear and tear, damages from misuse, accidents, or improper maintenance. Replacement components will carry the same warranty date as the original purchase.

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We’ve partnered with Klarna to provide our customers with the best shopping experience. Simply select the Klarna option during check out and process your order via the Klarna app. It’s easy, secure and will get you ripping in no time! To learn more about Klarna click here.
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