Centurion E-Fire City R2600i / R2500i ABS

2021 UrbanCommuter Electric bicycle Manufacturer page

Fork travel: 63 mm
Wheels: 650b, 700c
Drivetrain: 1 × 11 40t / 11–42t
Gear range: 382%
Battery: 625 Wh
Weight: 25.3 kg 55.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 151–164
SM 159–170
SM 159–170
MD 165–177
LG 171–184

Components

26 of 27 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

E-Fire City R G4 intube, Material: Aluminium, Steuerrohr: 1.5" straight, Ausfallende: 10x135 mm, Bremsaufnahme: Postmount 180 mm Not identified

Electric system

3 parts

Suspension

1 part

Fork
- SR Suntour

Drivetrain

6 parts

Cassette
- Shimano Deore CS-M5100-11 11 speeds 11–42t
CS-M5100-11
Chain
- SRAM PC-1110 11 speeds
PC-1110
Chain guide
- Curana
Crankset
- Centurion
Rear derailleur
- Shimano Deore XT RD-M8000-GS
RD-M8000-GS
Shifters
- Shimano Deore SL-M5100-R 11 speeds
SL-M5100

Brakes

2 parts

Brake levers
- Magura
Brakes
- Magura

Wheels and tires

5 parts

Cockpit and contact points

5 parts

Other components

4 parts

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 395mm

Stack 651mm

Wheelbase 1111mm

Head angle 68.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 650b wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	375	391	395	415	435
Stackmm	633	659	651	668	687
Top tube lengthmm	568	593	594	619	645
Seat tube lengthmm	380	430	430	480	530
Head tube lengthmm	180	170	200	180	200
Head tube angle	68.5°	69.5°	68.5°	69.5°	69.5°
Seat tube angle	73°	73°	73°	73°	73°
Chainstay lengthmm	435	450	435	450	450
Wheelbasemm	1083	1104	1111	1130	1158
Front centermm	652	662	680	688	716
Bottom bracket dropmm	46	65	46	65	65
Standover heightmm	437	437	436	436	435
Fork rakemm	41	43	42	41	42
Trailmm	86	85	85	87	86
Stack/reach ratio	1.69	1.69	1.65	1.61	1.58

Not published by the manufacturer: Bottom bracket height, 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
Bicycle weight: 25.3 kg

55.8 lb
Weight limit: 150 kg

330.7 lb

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 27.6 in
Highest gear: 105.5 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 [M-L] / 500Wh [XS-S]
Fork spring: Air
Tire width: 2″
Wheel material: Aluminum
Wheel size: 650b, 700c

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.6 km/h
Highest gear: 40.4 km/h

Total gear range 382%

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: 27.6–105.5 gear inches

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 2021 builds

Differences across 2021 builds
Specification	This bicycle Centurion E-Fire City R2600i / R2500i ABS	Centurion E-Fire City R550	Centurion E-Fire Sport R2600i ABS	Centurion E-Fire Sport R550	Centurion E-Fire Tour R2600i ABS	Centurion E-Fire Tour R550
Frame
Bicycle weight	25.3 kg	23.9 kg	25.7 kg	22.7 kg	25.7 kg	22.7 kg
Drivetrain
Smallest chainring	40	40	42	40	42	40
Largest chainring	40	40	42	40	42	40
Rear sprockets	11	9	11	9	11	9
Largest sprocket	42	36	42	36	42	36
Lowest gear	27.6 in	32.2 in	29.0 in	32.2 in	29.0 in	32.2 in
Highest gear	105.5 in	105.5 in	110.7 in	105.5 in	110.7 in	105.5 in
Electric bicycle systems
Battery capacity	625 Wh	500 Wh	625 Wh	500 Wh	625 Wh	500 Wh
Other specifications
Fork spring	Air	Coil	Air	Coil	Air	Coil
Wheel size	650b / 700c	26″ / 700c	700c	700c	700c	700c