Hercules Robert/a I-R8

2024 UrbanCommuter Electric bicycle Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €3,799 Last known price
Fork travel: 63 mm
Wheels: 700c
Drivetrain: 1 × 8 18t
Gear range: 100%
Battery: 625 Wh
Weight: 26 kg 57.3 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Sizes

Size guide

45cm
49cm
53cm
57cm

The manufacturer did not publish rider heights for these sizes.

Components

20 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

Aluminium Not identified

Electric system

3 parts

Suspension

1 part

Fork
- SR Suntour NEX
NEX-E25

Drivetrain

5 parts

Cassette
- Shimano
Chain
- KMC
Chain guide

HORN Catena 18 Not identified
Crankset
- Hercules
Shifters
- Shimano Nexus SL-C6000-8
SL-C6000

Brakes

2 parts

Brake levers
- Tektro HD-T280
HD-T280
Brakes
- Tektro HD-T280
HD-T280

Wheels and tires

5 parts

Front hub
- Shimano HB-QC300
HB-QC300
Rear hub
- Shimano Nexus SG-C6001-8CD 8 speeds
SG-C6001-8CD
Rims
- Rodi
Spokes

Niro, schwarz, 2 mm Not identified
Tires

28 x 2,00 Not identified

Cockpit and contact points

7 parts

Grips

Ergo, integrierte Klemmung Not identified
Handlebar

Trekking ZECURE, AL, 31.8 mm, 35° backsweep Not identified
Headset
- Acros
AZF-642
Pedals
- Marwi
Saddle
- Selle Royal Vivo
Seatpost
- Limotec
Stem

ZECURE UP2+, A-head, verstellbar Not identified

Other components

4 parts

Fenders
- Curana
Lights
- Hercules
FS-50
Lock
- Abus
Racks

Monkey load, system carrier, spring flap Not identified

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 49cm

Table

Geometry diagram unavailable

The drawing needs head tube length, 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
Reachmm	412	412	413	423
Stackmm	647	647	661	661
Top tube lengthmm	610	610	615	625
Seat tube lengthmm	450	490	530	570
Head tube angle	69.5°	69.5°	69.5°	69.5°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	495	495	495	495
Wheelbasemm	1171	1171	1177	1187
Front centermm	682	682	688	698
Bottom bracket dropmm	60	60	60	60
Fork rakemm	45	45	45	45
Trailmm	82	82	82	82
Stack/reach ratio	1.57	1.57	1.60	1.56

Not published by the manufacturer: Head tube length, Bottom bracket height, Standover 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: womens
Frame material: Aluminum
Bicycle weight: 26 kg

57.3 lb
Weight limit: 150 kg

330.7 lb

Suspension

Suspension configuration: Hardtail
Front travel: 63 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Rear sprockets: 8
Smallest sprocket: 18
Largest sprocket: 18

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Electric system

Battery capacity: 625 Wh

Additional specifications

Battery: Bosch PowerTube 625
Fork spring: Coil
Wheel material: Aluminum
Wheel size: 700c

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 2024 builds
Specification	This bicycle Hercules Robert/a I-R8	Hercules Robert/a F7 Active Plus	Hercules Robert/a HD I-F5	Hercules Robert/a I-F5	Hercules Robert/a I-F8	Hercules Robert/a I-R5
Frame
Intended fit	womens	Unisex	Unisex	womens	womens	womens
Bicycle weight	26 kg	Not informed	28 kg	26 kg	26 kg	26 kg
Weight limit	150 kg	135 kg	180 kg	150 kg	150 kg	150 kg
Drivetrain
Rear sprockets	8	Not informed	1	1	8	1
Smallest sprocket	18	Not informed	30	30	18	30
Largest sprocket	18	Not informed	30	30	18	30
Drivetrain technologies	Not informed	internally-geared-hub	belt-drive	belt-drive	Not informed	belt-drive
Brakes
Brake type	Hydraulic disc	Hydraulic rim	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost	Dropper seatpost
Shifting	Mechanical	Mechanical	No shifting	No shifting	Mechanical	No shifting
Electric bicycle systems
Battery capacity	625 Wh	400 Wh	750 Wh	625 Wh	625 Wh	625 Wh
Other specifications
Fork spring	Coil	Coil	Not informed	Coil	Coil	Coil
Travel	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 50 mm	Configuration: HardtailFront: Travel: 63 mm	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 30 mm	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 50 mm	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 50 mm	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 50 mm
Tire width	Not informed	50c	2.15″	Not informed	Not informed	Not informed

Changes since 2023
Specification	2023 Hercules Robert/a I-R8	This bicycle Hercules Robert/a I-R8
Frame
Intended fit	Unisex	womens
Weight limit	135 kg	150 kg
Bicycle weight	Not informed	26 kg
Drivetrain
Drivetrain technologies	internally-geared-hub	Not informed
Rear sprockets	Not informed	8
Smallest sprocket	Not informed	18
Largest sprocket	Not informed	18
Brakes
Brake type	Coaster brake	Hydraulic disc
Electric bicycle systems
Battery capacity	500 Wh	625 Wh
Other specifications
Tire width	50c	Not informed
Travel	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 45 mm	Configuration: HardtailFront: Travel: 63 mmAdditional specification: Seat: Travel: 50 mm