Spark Bikes Spark RX

2019 MountainCross-country Electric bicycle

Last known price: $2,399

Prices shown first for United States
Fork travel: 100 mm
Wheels: 27.5″
Drivetrain: 1 × 9 38t / 11–34t
Gear range: 309%
Battery: 816 Wh
Weight: 27.66 kg 61.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

20.5"

The manufacturer did not publish rider heights for these sizes.

Components

14 of 19 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

6061 Aluminum Alloy Not identified

Electric system

3 parts

Battery

Weight: 8.8 lbs (3.99 kg), Brand: LG, 18650 Cells, Voltage: 48 volts, Amp Hours: 17 ah, Watt Hours: 816 wh, Chemistry: Lithium-ion Not identified
Display
- Bafang
Motor
- Bafang

Suspension

1 part

Fork
- SR Suntour

Drivetrain

3 parts

Brakes

1 part

Brakes
- Tektro HD-E350
HD-E350

Wheels and tires

3 parts

Rims

Aluminum Alloy, Double Walled, 30mm Outer Width, 36 Hole Not identified
Spokes

Stainless Steel, 13 Gauge, Black with Nipples Not identified
Tires
- Kenda Nevegal

Cockpit and contact points

7 parts

Grips

Velo Ergonomic, Rubber, Locking Not identified
Handlebar
- ProMax
Headset
- Neco
Pedals
- Wellgo
Saddle
- Selle Royal Lookin
Seatpost
- SR Suntour NCX
Stem
- ProMax

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 27.66 kg

61.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 30.7 in
Highest gear: 95.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: suspension
Shifting: Mechanical

Electric system

Battery capacity: 816 Wh

Additional specifications

Battery: Weight: 8.8 lbs (3.99 kg), Brand: LG, 18650 Cells, Voltage: 48 volts, Amp Hours: 17 ah, Watt Hours: 816 wh, Chemistry: Lithium-ion
Fork spring: Coil
Tire width: 2.1″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 850 bicycles with this information
Coverage: 96.0% of the class

Lowest gear

30.7 gear inches

This value is above the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 799 bicycles with this information
Coverage: 90.2% of the class

Highest gear

95.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2019
Sample: 799 bicycles with this information
Coverage: 90.2% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 36.4 km/h

Total gear range 309%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 30.7–95.0 gear inches
Class reference (p10–p90): 16.8–105.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2019
Lowest gear: 799 bicycles with this information, 90.2% of the class
Highest gear: 799 bicycles with this information, 90.2% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2019 builds

Differences across 2019 builds
Specification	This bicycle Spark Bikes Spark RX	Spark Bikes Spark Mini
Frame
Bicycle weight	27.66 kg	28.75 kg
Suspension
Front travel	100 mm	60 mm
Drivetrain
Smallest chainring	38	52
Largest chainring	38	52
Rear sprockets	9	7
Largest sprocket	34	32
Lowest gear	30.7 in	32.5 in
Highest gear	95.0 in	94.6 in
Cockpit
Seatpost	suspension	Rigid seatpost
Other specifications
Battery	Capacity: 816 WhWeight: 8.8 lbs (3.99 kg), Brand: LG, 18650 Cells, Voltage: 48 volts, Amp Hours: 17 ah, Watt Hours: 816 wh, Chemistry: Lithium-ion	Capacity: 816 WhWeight: 9.1 lbs (4.12 kg), Brand: LG, 18650 Cells, Voltage: 48 volts, Amp Hours: 17 ah, Watt Hours: 816 wh, Chemistry: Lithium-ion
Tire width	2.1″	4″
Wheel size	27.5″	20″