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At a glance

The TST R9 Single Battery is a commuter electric bike listed at $899. Manufacturer specs put it at a 720Wh battery, a claimed 65 mile range, and a 32 mph top speed, at 88 lbs.

Next to the 46 other electric bikes in its price band ($674–$1,124), its strongest numbers are payload capacity (450 lbs vs 368 lbs avg), top speed (32 mph vs 27 mph avg), and included features (8 features vs 7 features avg). The tradeoffs are energy density (battery size for the weight) (8.2 Wh/lb vs 10.5 Wh/lb avg) and weight (88 lbs vs 74 lbs avg).

Spec-based analysis, computed from manufacturer-published numbers and compared against 46 similar electric bikes by price. No hands-on testing yet.

Strengths & weaknesses

Designed for: Urban Commuting

Strengths

Max loadGood

450 lbs vs 368 lbs avg

Top speedGood

32 mph vs 27 mph avg

FeaturesGood

8 features vs 7 features avg

Weaknesses

Energy density↓ 22%

8.2 Wh/lb vs 10.5 Wh/lb avg

Weight↓ 18%

88 lbs vs 74 lbs avg

Compared with 46 similarly priced models ($674–$1,124), from manufacturer specs.

Full Specifications

TST R9 Single Battery

Powertrain

Motor Type
Geared Hub
Peak Power
1500 W
Torque
90 Nm
Assist Levels
5

Battery & Range

Capacity
720 Wh
Amp-Hours
15 Ah
Voltage
48 V
Claimed Range
65 mi104.6 km
Charge Time
5-6 h
Removable Battery
Dual Battery

Build Quality

Gears
7
Drive System
Chain
Gearing
Derailleur
Shifter
Shimano 7 Speed
Puncture Protection
UL 2849

Utility

Weight
87.7 lbs39.8 kg
Max Load
450 lbs204.1 kg
Rear Rack
Fenders
Lights
Display
LCD
Connectivity
Bluetooth
App Compatible
Warranty
24 mo

Classification

Category
Commuter
Top Assist Speed
32 mph51.5 km/h

Wheels & Tires

Wheel Size
20"
Tire Size
20x4.0
Tire Category
Fat

Frame & Geometry

Max Seat Height
26.9"68.2 cm
Standover Height
30.7"78 cm
Overall Length
60.4"153.5 cm

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