With the rise in popularity of electric bikes, riders now have an unprecedented level of access to the great outdoors. No longer limited by range anxiety or challenging terrain, e-bikes enable adventure-seekers to explore farther while expending less effort. Among the models catering to this crowd, the TST Defender stands out as an attractively priced option packing robust off-road capabilities.
Retailing at $1,199, the TST Defender offers a compelling blend of power, battery life, and premium components – while keeping costs in check. Let’s take a closer look at what gives this e-bike its off-road chops.
TST Defender tech specs
Motor: 750W geared rear hub motor
Top speed: 45 km/h (28 mph) when unlocked
Range: Claimed up to 65miles on a single battery
Battery: 48V 15Ah (720 Wh)
Weight: 71.65LBS
Max load: 500LBS
Brakes: hydraulic disc brakes
Extras: UL 2849-certified, Cadence sensor, Shimano 7 speed shifter, color LCD display with speedometer, wattmeter, battery meter, PAS level indicator, odometer and tripmeter, front LED lights, rear reflector, left-side thumb throttle, lockable battery , free rear rack, free fenders, and kickstand.
Motor and Torque Sensor Provide Plenty of Assist
Having ample power and responsiveness is key for an off-road e-bike, allowing you to ascend steep grades and power through challenging conditions with ease. The TST Defender delivers on both fronts with its 750W rear hub motor and 85Nm of torque.
While higher wattage motors exist, 750W strikes a nice balance – providing muscular acceleration and hill climbing power without sacrificing efficiency or generating excess heat on long rides. Combined with the 85Nm torque output, you’ll find yourself spinning up inclines faster than possible on a normal bike. The pedal-assist engages smoothly thanks to the cadence sensor, giving you that extra oomph when you need it.

Long Range from a Sizable Battery
Range anxiety is the last thing you want when embarking on backcountry adventures. Fortunately, the TST Defender’s 48V 15Ah battery has you covered with approximately 720Wh of capacity. This translates to a test-derived max range exceeding 65 miles by using pure throttle only. Real-world range in mixed pedal assist and throttle mode falls around 30-40 miles. While not the furthest around, it’s ample for most rides.
And should you desire ultra-long range, the Defender provide extra batteries – providing the freedom to disappear into the wilderness for days on end. Just take note that reaching max range requires minimal pedal assist and slower speeds, as throttle-only mode is far less efficient. But the option is there when you need it.
Impressive Speed and Acceleration
Unlocking the top speed of 28 mph, the TST Defender proves to be quite a speedy electric bike. In throttle-only mode, it can reach speeds over 20 mph, which is rare for an e-bike. However, riders need to be mindful of local regulations when riding on public roads or trails as this exceeds legal limits in some areas. That being said, the ability to cruise comfortably at around 25 mph on throttle-only mode is a great advantage during long straightaways or when you need that extra boost.
Quality Components and Design
The TST Defender features cast rims that not only enhance its attractive appearance but also eliminate concerns about rusting or bent spokes commonly found in traditional wheels. The rear rack with a weight rating of over 170 pounds – perfect for carrying gear while maintaining stability during off-road adventures.
One aspect worth mentioning is the the rear rack that provide more mounting options for accessories such as storage boxes or additional tie-down points. It does provide more flexibility if needed.
Braking Could Use a Bit More Bite
Slowing and stopping the Defender are a set of hydraulic disc brakes with 180mm rotors. The hydraulic discs provide solid all-weather braking power with good modulation. However, a common critique of the brakes is that they lack some initial bite and responsiveness compared to higher-end options.
While the brakes get the job done, you need a firmer squeeze of the levers to achieve maximum stopping power. Upgrading the stock brakes down the line with higher-performance aftermarket options would noticeably improve braking control. But for less aggressive riders, the stock brakes are perfectly usable.
Headlight Has Some Limitations
An included LED headlight powers up to 30 feet to help illuminate night riding. While a nice bonus feature, the headlight is fixed in place and doesn’t pivot or adjust with steering like common handlebar-mounted lights. This can limit visibility around corners when the handlebars turn but the light stays pointing straight ahead.
For casual night or early morning rides, the headlight is a handy addition. But for regular nighttime off-roading, you may want to invest in a brighter external light that follows your steering.
Fat Tires for Off-Road Excursions
The TST Defender’s 26*4 fat tires are a standout feature that enhances both comfort and performance during off-road adventures. The added traction and cushioning provided by the wide tires allow riders to tackle challenging terrain with ease. Additionally, the electric motor compensates for the extra weight typically associated with fat tires when used in pedal-only bicycles.
Who Is the TST Defender For?
With its blend of power, comfort, and trail-tackling capability, the TST Defender hits a sweet spot for certain riders. It’s a great choice for:
– Off-road adventurers wanting to explore more remote areas.
– Riders who value stability and cushioning over agility.
– Those needing robust carrying capacity for gear/camping.
– Anyone seeking an affordable but well-equipped electric fat bike.
While it may lack some finesse compared to pricier options, the Defender more than holds its own in rugged terrain – especially given the reasonable price. For rural adventuring on a budget, it’s hard to beat what this electric fat bike offers.
The Bottom Line
If you’ve been itching to venture farther into the great outdoors by e-bike, the TST Defender warrants a close look. It provides ample assist and battery range for all-day excursions, while quality components and fat tires conquer nearly any terrain. Despite the low price, few compromises were made with performance. So for affordably opening up new horizons to explore off the beaten path, the Defender ticks all the right boxes.
Published by: Aly Cinco