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A genuinely new adult bicycle under $100 is essentially nonexistent at major retailers once you account for frame, drivetrain, and brake costs — that price point realistically covers kids’ bikes and entry-level BMX. Here’s what’s actually available new for under (or right around) $100, rather than padding this list with adult bikes that don’t exist at this price.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | Huffy 12″ Rock It Kids Bike | $70-$85 | Amazon · eBay |
| 2 | Huffy 12″ Sea Star Kids Bike | $70-$85 | Amazon · eBay |
| 3 | Huffy 16″ Rock It Kids Bike | $78-$92 | Amazon · eBay |
| 4 | Huffy 20″ Sea Star Kids Bike | $88-$120 | Amazon · eBay |
The picks, in detail
Huffy 12″ Rock It Kids Bike
An entry-level 12-inch kids bike from Huffy, one of the most consistently available sub-$100 bikes at Walmart.
- 12-inch wheels for young riders
- Coaster brake
- Training wheels included
- Reliably priced well under $100
- Widely stocked at Walmart
- Sized for young children only, not a teen or adult option
Huffy 12″ Sea Star Kids Bike
Huffy’s Sea Star model in the same 12-inch size class, a direct alternative to the Rock It with different styling.
- 12-inch wheels
- Coaster brake
- Training wheels included
- Same reliable sub-$100 pricing as the Rock It
- Alternate styling/colorway option
- Same young-child-only sizing limitation
Huffy 16″ Rock It Kids Bike
A larger 16-inch version of the Rock It for slightly older kids, still landing under $100 at regular price.
- 16-inch wheels
- Coaster brake
- Kickstand included
- Fits older kids than the 12-inch models
- Still comfortably under $100
- Still a kids’ bike, not sized for teens or adults
Huffy 20″ Sea Star Kids Bike
A 20-inch model that stretches toward the top of a $100 budget, sized for pre-teens rather than younger kids.
- 20-inch wheels
- Hand and coaster brakes
- Sized for older kids/pre-teens
- Largest wheel size still near the $100 mark
- Good option for a growing rider
- Price sits close to or slightly over $100 at list price
Buying tips
- If you searched this expecting an adult bike, be aware the honest market reality is that new adult bikes reliably start closer to $150-$200 — under $100 new is a kids’-bike price bracket at major retailers.
- For an adult bike near $100, the realistic options are the used market (Facebook Marketplace, local bike co-ops, police-auction sites) rather than new retail — a well-maintained used hybrid or cruiser is a better $100 bike than any new option at that price.
- Watch for clearance and Walmart rollback pricing specifically — several of these Huffy models cycle in and out of sub-$100 pricing depending on promotions.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.