Centurion Backfire E R860i EQ

2023 MountainCross-country Electric bicycle Manufacturer page

Fork travel: 100 mm
Wheels: 29″
Drivetrain: 1 × 12 34t / 11–50t
Gear range: 455%
Battery: 625 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

XS
SM/MD
MD/LG
XL

The manufacturer did not publish rider heights for these sizes.

Components

27 of 28 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

Backfire R intube, Material: Aluminium, 29", Steuerrohr: 1.5" straight, Ausfallende: 12x148 mm, Bremsaufnahme: Postmount 180 mm, Rahmenkennung: TBP033A Not identified

Electric system

4 parts

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Other components

4 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size SM/MD

Table

Geometry diagram unavailable

The drawing needs reach, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Stackmm	630	648	667	686
Top tube lengthmm	595	621	646	672
Seat tube lengthmm	400	450	500	550
Head tube lengthmm	100	120	140	160
Head tube angle	68.5°	68.5°	68.5°	68.5°
Seat tube angle	74°	74°	74°	74°
Chainstay lengthmm	460	460	460	460
Wheelbasemm	1145	1173	1200	1228
Front centermm	693	721	748	776
Bottom bracket dropmm	68	68	68	68
Bottom bracket heightmm	306	306	306	306
Standover heightmm	762	793	827	863

Not published by the manufacturer: Reach, Fork rake, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Frame weight: 0.02 kg

0.0 lb
Weight limit: 150 kg

330.7 lb

Suspension

Suspension configuration: Hardtail
Front travel: 100 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 50
Lowest gear: 19.7 in
Highest gear: 89.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 625 Wh

Additional specifications

Battery: Bosch PowerTube 625 Wh
Fork spring: Air
Tire width: 2.4″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 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: 2023
Sample: 1,907 bicycles with this information
Coverage: 95.2% of the class

Lowest gear

19.7 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Highest gear

89.6 gear inches

This value is within the central range for this class.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 1,578 bicycles with this information
Coverage: 78.8% of the class

Shifting

Mechanical

223 of 2,002 bicycles with this information use electronic shifting.

Cohort: Mountain / Cross-country Model year: 2023
Sample: 2,002 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.6 km/h
Highest gear: 34.3 km/h

Total gear range 455%

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: 19.7–89.6 gear inches
Class reference (p10–p90): 17.7–101.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Cross-country Model year: 2023
Lowest gear: 1578 bicycles with this information, 78.8% of the class
Highest gear: 1578 bicycles with this information, 78.8% 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 2023 builds
Specification	This bicycle Centurion Backfire E R860i EQ	Centurion Backfire E R2600i	Centurion Backfire E R750i	Centurion Backfire E R760i	Centurion Backfire E R860i	Centurion Backfire Fit E R750i
Frame
Frame weight	0.02 kg	Not informed	0.02 kg	0.02 kg	Not informed	0.02 kg
Bicycle weight	Not informed	22.6 kg	Not informed	Not informed	22.5 kg	Not informed
Suspension
Front travel	100 mm	110 mm	100 mm	100 mm	100 mm	100 mm
Drivetrain
Smallest chainring	34	34	34	34	34	36
Largest chainring	34	34	34	34	34	36
Rear sprockets	12	12	10	10	12	10
Smallest sprocket	11	10	11	11	11	11
Largest sprocket	50	51	42	42	50	42
Lowest gear	19.7 in	19.3 in	23.5 in	23.5 in	19.7 in	24.9 in
Highest gear	89.6 in	98.6 in	89.6 in	89.6 in	89.6 in	94.9 in
Cockpit
Seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost	Rigid seatpost
Electric bicycle systems
Battery capacity	625 Wh	625 Wh	500 Wh	625 Wh	625 Wh	500 Wh
Other specifications
Tire width	2.4″	2.4″	2.4″	2.4″	2.4″	2.25″
Wheel size	29″	29″	29″	29″	29″	27.5″ / 29″

Changes since 2022
Specification	2022 Centurion Backfire E R860i EQ	This bicycle Centurion Backfire E R860i EQ
Frame
Bicycle weight	24 kg	Not informed
Frame weight	Not informed	0.02 kg

Other models in this family

15 models

Published versions from the same family and model year.

Centurion Backfire E R860i EQ, by Centurion

This bicycle

E-bike, Cross-country

Backfire E R860i EQ

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire E R2600i

E-bike, Mountain / Cross-country

Weight: 22.6 kg
Suspension: 110 mm
Wheel size: 29″

E-bike, Cross-country

Backfire E R750i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire E R760i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire E R860i

E-bike, Mountain / Cross-country

Weight: 22.5 kg
Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit E R750i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 27.5″/29″

E-bike, Cross-country

Backfire Fit E R750i EQ

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 27.5″/29″

E-bike, Cross-country

Backfire Fit E R760i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit E R760i EQ

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 27.5″/29″

E-bike, Cross-country

Backfire Fit E R811i Dual Batt EQ

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit E R860i/R850i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit E R860i/R850i EQ

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit R2000i

E-bike, Mountain / Cross-country

Weight: 24.0 kg
Suspension: 110 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit R800i

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

E-bike, Cross-country

Backfire Fit R800i EQ

E-bike, Mountain / Cross-country

Suspension: 100 mm
Wheel size: 29″

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Centurion Backfire E R860i EQ

Sizes

Size explorer

Size SM/MD

This bicycle

Differences across 2023 builds

Backfire E R860i EQ