I recently got my hands on a brand new “K Series” folding e-bike from KBO so today I’m reviewing it from every angle and for every scenario. If you’re an urban commuter, leisure rider, or experienced traveler, KBO claims this is the bike for you, but how well will it meet your needs? Read on to find out!
The K Series currently has 2 models under its banner: the K1 and K2. Both are essentially the same, with the only difference being color options and a slight modification to the frame of the K2, technically making it a step-thru. Other than those minor differences, both bikes are about the same. As with all bikes in this competitive market, there are strengths and drawbacks. Whether either model is suitable for you will depend on your specific needs and preferences.
Let’s explore the main advantages first:
| Feature | Description | Benefit |
| 500W Motor | Provides fast acceleration, can reach speeds up to 20mph | Quick acceleration for riding through city streets |
| 48V 10.4Ah Battery | 500Wh capacity, capable of up to 45 miles (I achieve about 25 on pure electric, and around 40 with pedal assist) | Long range suitable for daily commutes |
| Built-in Battery Design | 90% short-circuit proof, ideal for humid environments | Enhanced safety and durability in various climates |
| Variety of Colors | Available in multiple colors | Personalization options |
| Adaptable for Different Heights | Suitable for riders between 4ft. 11in. and 6ft. 3 in. | Comfortable for a wide range of riders |
| Clamp Security | Secure clamp that locks easily | Convenient and secure folding mechanism |
| Compact Folding | Fits two bikes in the back of an SUV; two-step folding process | Easy to transport and store, especially for travelers |
| Affordable Price | Offered at $699 each or $599 each if two are purchased | Entry-level bike for budget-conscious riders |
The most important takeaway from this set of features is the bike is clearly designed for a new generation of riders that value affordability over performance. At $699, there’s only so many parts a company can use on an electric bike while remaining profitable. I think KBO has struck a good balance of decent parts at a remarkably low price. This isn’t their first model either, so they’ve got experience in manufacturing, customer service, and supply chain management. By offering free shipping and a 2-year warranty, it appears they are attempting to give customers some peace of mind in the event anything goes wrong.
The biggest tradeoff of this price is likely the power of the motor and the quality of the drivetrain. Some riders have reported that although the bike accelerates quickly, it may feel sluggish on steep inclines, though the same could be said about most electric bikes. Overall, the main specs are impressive at this price point.
But we can’t talk about the advantages without noting the downsides, too:
| Issue | Description | Impact |
| Mediocre Front Fork Suspension | Suspension quality is average | Reduced comfort on rougher terrains |
| Mechanical Brakes | Less reliable stopping power compared to hydraulic brakes | Potentially less safe in emergency braking situations |
| Quick Acceleration | Acceleration may be too fast for some riders | May require careful handling, especially for new riders |
| Uncomfortable Seat | Seat is not very comfortable for long rides | Discomfort on extended journeys |
| Limited Trunk Space Fit | Only one bike fits in the trunk of a sedan | Less convenient for small car owners |
Here we begin to see a bit of how KBO can charge so little and still stay in business – the parts aren’t all top of the line. But that’s likely okay for most riders just looking for a simple and fun ride for their first e-bike. Here’s a breakdown of primary rider types and if this bike is for them:
City Commuter – Definitely
Student on Campus – Yes
Cardio Exercise – Maybe
All-terrain Explorer – Probably Not
Expert Trail Rider– Definitely Not
Overall Recommendation
This e-bike offers a blend of power, range, and adaptability, making it ideal for urban commuting, leisure rides, and even some light travel. I do not recommend this bike for long adventures or challenging trails. While it has some minor drawbacks, such as its suspension and brake system, its overall performance, features, and especially price, should make it a strong contender in the e-bike market.
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