Ampler user manuals & specification lists

Our manuals give you important information about assembly, using the bike and care tips. We recommend having a regular look.

Anniversary Generation 1 models

Anniversary G1 manual

Generation 2 models

The specification lists of our 2022 models (the new Generation 2), can be found on our website on the respective model pages at the very bottom. Find the manuals here:

Curt 2022 manual

Stout/Stellar 2022 manual

Axel/Juna 2022 manual

Generation 1 models

2021 Facelift 2019-2020 2018 Older models

Curt/Stout/Stellar 2021 manual (new firmware)

Curt/Stout/Stellar 2021 manual (old firmware)

Note: Depending on the firmware version, a different range of functions applies. Read more here about whether or when a firmware update is possible.

Curt specification list

Frame sizes	Small 50 cm, Medium 54 cm, Large 58 cm

Components

Frame	Aluminium Alloy 6061, double butted
Fork	Carbon 1 1/8"- 1 1/2", 12 mm thru-axle
Crankset	Alloy 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Gates CDX Carbon Belt Drive / Shimano Deore M5120 11-speed
	Single-speed configuration: Gates Carbon Belt Drive CDX Front sprocket: CDX 60T Rear sprocket: CDX 20T Belt: CDX 120T
	11-speed configuration: Shimano Deore M5120 11-speed Derailleur: Shimano M5120 11-speed Shifter: Shimano M5100 11-speed Cassette: CS-M5100 11-42T Chain: Yaban SLA-H11 Chainring: 42T Narrow/Wide
Brakes	Shimano M6000 hydraulic disc brakes
Brake Pads	Shimano G02S
Wheels	28" wheels with 28 mm asymmetrical rims and sealed bearing hubs, 36H
Tyres	Continental Grand Prix 4-Season, 32-622 mm
Mudguards	Ampler Aluminium Mudguards, 40 mm
Weight	13.5 kg (single-speed belt) / 14.3 kg (11-speed chain)

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Stout specification list

Frame Sizes	Medium 55 cm, Large 59 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8", 12 mm thru-axle
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Microshift Advent RD-M619M 9-speed rear derailleur with Microshift SL-M8195 shifter
Cassette	Microshift CS-H093 11-42T
Chain	Yaban SLA-H9
Brakes	Hydraulic disc brakes 160 mm
Brake Pads	Kool-Stop KS-D620
Tyres	Continental Top Contact II, 42-622 mm
Wheels	28" wheels with 18 mm asymmetrical rims and sealed bearing hubs, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode, average range 70 km
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Stellar specification list

Frame sizes	Small 50 cm, Medium 54 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8", 12 mm thru-axle
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Microshift Advent RD-M619M 9-speed rear derailleur with Microshift SL-M8195 shifter
Cassette	Microshift CS-H093 11-42T
Chain	Yaban SLA-H9
Brakes	Hydraulic disc brakes 160 mm
Brake Pads	Kool-Stop KS-D620
Tyres	Continental Top Contact II, 42-622 mm
Wheels	28" wheels with 18 mm asymmetrical rims and sealed bearing hubs, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode, average range 70 km
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Curt/Stout/Stellar 2019 - 2020 manual

Curt specification list

Frame sizes	Small 50 cm, Medium 54 cm, Large 58 cm

Components

Frame	Aluminium Alloy 6061, double butted
Fork	Carbon 1 1/8"- 1 1/2", 12 mm thru-axle
Crankset	Alloy 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Gates CDX Carbon Belt Drive / Shimano Deore M6000 10-speed
	Single-speed configuration: Gates CDX Carbon Belt Drive Front sprocket: CDX 60T Rear sprocket: CDX 20T Belt: CDX 120T
	10-speed configuration: Shimano Deore M6000 10-speed Derailleur: Shimano M6000 10-speed Shifter: Shimano M6000 10-speed Cassette: CS-5700 11-28T Chain: KMC X10 EL Chainring: 42T Narrow/Wide
Brakes	Shimano M6000 hydraulic disc brakes
Brake Pads	Shimano G02S
Wheels	28" wheels with 28 mm asymmetrical rims and sealed bearing hubs, 36H
Tyres	Continental Grand Prix 4-Season, 32-622 mm
Mudguards	Ampler Aluminium Mudguards, 40 mm
Weight	13.5 kg (single-speed belt) / 14.3 kg (10-speed chain)

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Stout specification list

Frame sizes	Medium 54 cm, Large 59 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8", 12 mm thru-axle
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano Deore RD-T6000 10-speed
Cassette	Shimano HG500 11-32
Chain	Yaban SLA-H10 114L
Brakes	Shimano Deore T6000 hydraulic disc brakes
Brake Pads	Shimano G02S
Tyres	Continental Top Contact II, 42-622 mm
Wheels	28" wheels with 18 mm asymmetrical rims and sealed bearing hubs, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode, average range 70 km
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Stellar specification list

Frame sizes	Small 50 cm, Medium 54 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8", 12 mm thru-axle
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano Deore RD-T6000 10-speed
Cassette	Shimano HG500 11-32
Chain	Yaban SLA-H10 114L
Brakes	Shimano Deore T6000 hydraulic disc brakes
Brake Pads	Shimano G02S
Tyres	Continental Top Contact II, 42-622 mm
Wheels	28" wheels with 18 mm asymmetrical rims and sealed bearing hubs, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h
Range	45-100 km depending on terrain and assist mode, average range 70 km
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Curt 2018 manual Stout 2018 manual Stellar 2018 manual

Curt 2018 specification list

Frame sizes	Small 50 cm, Medium 54 cm, Large 58 cm

Components

Frame	Aluminium Alloy 6061, double butted
Fork	Carbon 1 1/8"- 1 1/2"
Crankset	Alloy 48T 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Single-speed Gates CDX Carbon Belt Drive / Single-speed chain / Shimano Deore M6000 10-speed
	Single-speed belt configuration: Gates CDX Carbon Belt Drive Front sprocket: CDX 60T Rear sprocket: CDX 20T Belt: CDX 120T
	10-speed chain configuration: Shimano Deore M6000 10-speed Derailleur: Shimano M6000 10-speed Shifter: Shimano M6000 10-speed Cassette: CS-5700 11-28T Chain: KMC X10 EL Chainring: 42T Narrow/Wide
	Single-speed chain configuration: 16T 1/8" Shimano 9 spline sprocket Yaban MK-926-S2 half link chain, 1/8" width
Brakes	Shimano MT500 hydraulic disc brakes
Brake Pads	Shimano B01S
Wheels	28" wheels, double wall 30 mm rims, 36H
Tyres	Continental Contact Speed, 35-622 mm Continental Grand Prix 4-Season, 32-622 mm
Mudguards	Ampler Aluminium Mudguards, 40 mm
Weight	14.1 kg (single-speed belt) / 14.3 kg (10-speed chain)

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	45-100 km depending on terrain and assist mode
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Optional Front: Busch+Müller IQ2 Eyc  Rear: LightSKIN integrated seat post LED light

Stout 2018 specification list

Frame sizes	Medium 54 cm, Large 58 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8"
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano Acera RD-T3000 9-speed
Cassette	Shimano HG201 11-32T 9-speed
Chain	Shimano/ SRAM compatible 9-speed chain
Brakes	Shimano M315 hydraulic disc brakes
Brake Pads	Shimano B015
Tyres	Continental Contact, 47-622 mm Continental Top Contact II, 47-622 mm Continental Top Contact II, 42-622 mm
Wheels	28" wheels with double wall 18 mm rims, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	45-100 km depending on terrain and assist mode
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Optional Front: Busch+Müller IQ2 Eyc  Rear: LightSKIN integrated seat post LED light

Stellar 2018 specification list

Frame sizes	Small 50 cm, Medium 54 cm

Components

Frame	Aluminium Alloy 6061
Fork	Aluminium 1 1/8"
Crankset	Alloy 42T, 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano Acera RD-T3000 9-speed
Cassette	Shimano HG201 11-32T 9-speed
Chain	Shimano/ SRAM compatible 9-speed chain
Brakes	Shimano M315 hydraulic disc brakes
Brake Pads	Shimano B015
Tyres	Continental Contact, 47-622 mm Continental Top Contact II, 47-622 mm Continental Top Contact II, 42-622 mm
Wheels	28" wheels with double wall 18 mm rims, 36H
Mudguards	Ampler Aluminium Mudguards, 60 mm
Weight	17.2 kg

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	45-100 km depending on terrain and assist mode
Battery	48 V 336 Wh LG Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	3A Li-ion charger with Rosenberger magnetic plug
Charging time	2.5 hours for a full charge
Lights	Optional Front: Busch+Müller IQ2 Eyc  Rear: LightSKIN integrated seat post LED light

Hawk manual Bilberry manual Pennon manual

Hawk specification list

Frame sizes	Mens: Medium 54 cm, Large 58 cm Ladies: Small 48 cm, Medium 55 cm

Components

Frame	Aluminium Alloy 6061, double butted
Fork	Carbon 1 1/8"- 1 1/2"
Crankset	Aluminium 46T, 165 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Single-speed Gates CDX Carbon Belt Drive / Single-speed chain
	Single-speed Gates CDX Carbon Belt Drive Front sprocket: CDX 55T Rear sprocket: CDX 20T Belt: CDX 120T
	Single-speed chain 16T 1/8" Shimano 9 spline sprocket KMC HL710 half link chain
Brakes	Shimano M315 hydraulic disc brakes
Brake Pads	Shimano B01S
Wheels	28" wheels, double wall 41 mm rims, 36H
Tyres	Continental Contact Speed 35-622 mm
Mudguards	Optional Curana C-Lite 40 mm, with custom front stays
Weight	13.9 kg

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	35-85 km depending on terrain and assist mode
Battery	48 V 5,8 Ah Samsung Li-ion battery
Motor	250 W front hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	2A Li-ion charger with Rosenberger magnetic plug
Lights	Optional Front: Busch+Müller IQ2 Eyc  Rear: LightSKIN integrated seat post LED light

Bilberry specification list

Frame sizes	Small 48 cm, Medium 55 cm, Large 59 cm

Components

Frame	Alloy Ampler Bikes custom frame
Fork	4130 Chromoly, threadless
Crankset	Alloy 170 mm, 42T
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano RD-T3000 derailleur and SL-M3000 shifter
Cassette	Shimano HG200 11-32T 9-speed
Chain	KMC X9-73
Brakes	Shimano M315 hydraulic disc brakes
Brake Pads	Shimano B01S
Wheels	28" wheels, double wall 30 mm rims, 36H
Tyres	Schwalbe Road Cruiser 47–622 mm
Mudguards	Ampler Aluminium Mudguards
Weight	17.4 kg

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	35-85 km depending on terrain and assist mode
Battery	48 V 5,8 Ah Samsung Li-ion battery
Motor	250 W rear hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	2A Li-ion charger with Rosenberger magnetic plug
Lights	Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light

Pennon specification list

Frame sizes	Small 48 cm, Medium 55 cm, Large 59 cm

Components

Frame	Alloy Ampler Bikes custom frame
Fork	Aluminium
Stem	Ergotec Pike II
Handlebar	Ergotec city cruiser Mas-Nb ti
Grips	Ergotec Monaco
Saddle	Ergotec Comfort leather
Crankset	Alloy 170 mm
Bottom Bracket	Sealed BB with a torque sensor
Drivetrain	Shimano SG-3D55 3-speed hub gearing with Gates CDX Carbon Belt Drive Front sprocket: CDX 50T Rear Sprocket: CDX 22T
Brakes	Shimano BR-T445
Wheels	28" wheels Mach1 630 disc, 36H
Tyres	Schwalbe Road Cruiser 47–622 mm
Mudguards	Bamboo / Aluminium
Weight	17 kg

Electronics

Assist speed	25 km/h (user configurable to 35 km/h)
Range	40–100 km depending on terrain and assist mode
Battery	48 V 5,8 Ah Samsung Li-ion battery
Motor	48 V 250 W rear hub motor
Control mode	Precise pedal torque-sensing motor control system
Connectivity	Smartphone connectivity with option to change motor settings
Charger	2A Li-ion charger with Rosenberger magnetic plug
Lights	Optional Front: Busch+Müller IQ2 Eyc Rear: LightSKIN integrated seat post LED light