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Concept2 BikeErg vs. Domyos Training Bike 900 compared
Indoor Cycling Bike
At a glance
The key numbers for both devices side by side.
Overall rating
8181Gut
8484Gut
Value for money
63Fair
87Excellent
Best price
€1,410.00
€724.99
Price advantage
—
€685.01 cheaper
Offers
2 shops
1 shop
Rank in category
Rank 10 of 45
Rank 6 of 45
Rating
Sub-ratings compared
Concept2 BikeErgOverall rating 81Domyos Training Bike 900Overall rating 84
Concept2 BikeErgDomyos Training Bike 900
Ride feel & resistance75/10089/100
Ergonomics & adjustability81/10071/100
App & connectivity81/10083/100
Stability & noise83/10087/100
Build quality & ease of use95/10073/100
Ride feel & resistance
75
89
Ergonomics & adjustability
81
71
App & connectivity
81
83
Stability & noise
83
87
Build quality & ease of use
95
73
Specs
Specs compared
Key specs
Brand
Model
BikeErg
Training Bike 900
Resistance systemBraking principle according to the manufacturer: magnetic (contactless, quiet), friction (felt or leather brake on the flywheel) or electromagnetic with motorized adjustment. Manufacturers also call the electromagnetic brake ECB or eddy current brake. If a motor adjusts the resistance – it adapts itself during a workout (auto resistance, auto-follow, control via app) –, this counts as “Electromagnetic (motorized)”, even if the manufacturer only speaks of a magnetic brake; “Magnetic brake” means adjustment via knob or lever.
Luftwiderstand (Windrad mit Luftklappe)
Electromagnetic (motorized)
Flywheel weightWeight of the flywheel according to the manufacturer, not the “effective flywheel weight”; convert figures in lbs to kg.
13 kg (29 lb)
DrivePower transmission to the flywheel according to the manufacturer; a belt runs quieter and needs less maintenance than a chain.
Belt
Belt
Max. loadMaximum user weight according to the manufacturer, not the unit’s own weight.
159 kg (350 lb)
150 kg (330 lb)
App connectivityAccording to the manufacturer, the bike can be paired with at least one training app (e.g. Zwift, Kinomap, manufacturer app).
Yes
Yes
Grade simulationThe app adjusts resistance automatically to match the route profile, e.g. in Zwift or Kinomap – requires motorized resistance adjustment
No
Yes
Ergonomics & comfort
Max. user heightMaximum recommended user height according to the manufacturer.
200 cm (6 ft 7 in)
Min. user heightMinimum recommended user height according to the manufacturer.
160 cm (5 ft 3 in)
Saddle adjustmentSaddle adjustment directions according to the manufacturer.
Height only
Height and fore-aft
Handlebar adjustmentHandlebar adjustment directions according to the manufacturer.
Height and fore-aft
Height only
Q-factorDistance between the pedals in cm according to the manufacturer – smaller is easier on the joints
15.5 cm (6.1 in)
PedalsPedal system included according to the manufacturer; combo pedals have a clipless side and a cage side. Look Delta is a separate clipless standard and not SPD-compatible.
Combo pedals (SPD and cage)
Combo pedals (SPD and cage)
Bottle holderWater bottle holder included according to the manufacturer.
No
Yes
Drive & resistance
Resistance adjustmentType of resistance adjustment according to the manufacturer: stepless via a knob or in fixed levels.
Stepped
Resistance levelsNumber of resistance levels according to the manufacturer; leave blank for stepless adjustment.
32 levels
Watt-controlledHolds a set power in watts regardless of cadence – ERG mode in training apps
No
No
Max. powerMaximum braking power in watts according to the manufacturer
1,000 W
Power supplyPower supply of the console according to the manufacturer.
Battery
Power adapter
Console & connectivity
DisplayType of built-in monitor according to the manufacturer; a plain tablet holder counts as no display.
Backlit LCD
LED
Displayed metricsValues the console shows directly according to the spec sheet, not just the app.
TimeDistanceCaloriesWatts
TimeDistanceSpeedCadenceWattsCaloriesHeart rate
Watt displayAccording to the manufacturer, the bike shows power in watts, either measured or calculated from resistance and cadence.
Yes
Yes
Workout programsNumber of preinstalled workout programs
13
0
Compatible appsApps the manufacturer explicitly lists as compatible.
Manufacturer appZwift
Manufacturer appKinomapZwiftRouvyFulGaz
Bluetooth FTMSOpen Bluetooth protocol for fitness equipment – lets apps outside our list connect too
Yes
Wireless interfacesWireless connections of the bike according to the manufacturer.
BluetoothANT+
Bluetooth
Heart rate monitoringHow heart rate is measured; empty = no heart rate monitoring
Bluetooth chest strapANT+ chest strap
Bluetooth chest strap
SubscriptionWhether workouts and the screen are fully usable without a subscription (Peloton, iFit)
none
optional
Tablet holderHolder for a tablet or smartphone according to the manufacturer; mark optional accessories separately
Integrated
Integrated
Dimensions & installation
Dimensions (L × W × H)Assembled, in cm, length × width × height at the lowest handlebar position – e.g. “150 × 68 × 117 cm”
122 × 61 cm (48 × 24 in)
137 × 53 × 147 cm (54 × 21 × 58 in)
Unladen weightWeight of the assembled bike without packaging according to the manufacturer.
31 kg (68 lb)
48.3 kg (105 lb)
Transport wheelsAccording to the manufacturer, the bike has wheels for moving it around.
Yes
Yes
Floor levelingHeight-adjustable feet to compensate for uneven floors according to the manufacturer.
Yes
Yes
General
Warranty
5 years
5 years
Price segment
Premium
Model year
2017
2024
In the box
PM5-Monitor, Smartphone- und Tablethalterung, Benutzerhandbuch, PM-Schnellstartanleitung, Werkzeug, Montageanleitung
Heimtrainer (vormontiert), Montagezubehör, Montage-/Bedienungsanleitung
Prices
Offers
Verdict
Pros & cons
Das Concept2 BikeErg ist ein Luftrad mit festem Lenker und Riemenantrieb, das in Tests als robust und nahezu wartungsfrei gilt. Es passt zu dir, wenn du nach Watt ohne Abo trainierst und Zwift oder ErgData nutzt. Der Haken: Den Widerstand verstellt keine App, die Luftklappe sitzt unten am Lüfter, und der schmale, harte Sattel braucht Gewöhnung.
Pros
- Geschweißter Aluminiumrahmen, in Tests sehr robust und auch im Sprint ruhig
- Selbstnachspannender Riemen ohne Ölen und Nachstellen
- PM5 liefert Wattwerte, vergleichbar mit anderen Concept2-Geräten
- Zwift und ErgData per Bluetooth und ANT+, ohne Abo
- Passt in Tests Fahrern von 1,55 bis 1,96 m, Q-Faktor 15,5 cm
- Sattel, Lenker und Pedale gegen Standardteile tauschbar
Cons
- Schmaler, harter Sattel, nur in der Höhe verstellbar
- Kein automatisch gesteuerter Widerstand, keine Steigungssimulation
- Luftklappe nur unten am Lüfter verstellbar, Bücken im Intervall
- Lüfterrauschen und Luftzug bei hoher Leistung
- Kein Flaschenhalter, Pulsgurt nicht im Lieferumfang
Das Domyos Training Bike 900 ist ein solides Indoor Bike für App-Training: Die motorische Magnetbremse lässt sich über offenes Bluetooth FTMS von Kinomap, Zwift, Rouvy und FulGaz steuern, und der Tritt läuft dank 13 kg Schwungrad und Riemen rund und leise. Der Haken: Das Netzkabel löst sich gelegentlich, der Lenker wandert nur in der Höhe. Für regelmäßiges Training mit App halten wir es für eine stimmige Wahl.
Pros
- Motorische Magnetbremse mit 32 Stufen, von Apps automatisch verstellbar
- Offenes Bluetooth FTMS für Zwift, Kinomap, Rouvy und FulGaz
- Runder Tritt dank 13 kg Schwungrad und Riemenantrieb
- Steht mit 48,5 kg Eigengewicht auch im Wiegetritt ruhig
- Leise mit 48 bis 49 dB in 1,5 m Abstand
- Kombipedale mit SPD-Aufnahme und Korb
Cons
- Magnetisches Netzkabel löst sich bei kräftigem Treten, Rad schaltet ab
- Lenker nur in der Höhe verstellbar, nicht in der Länge
- Keine eingebauten Trainingsprogramme, ohne App nur freies Fahren nach Stufe
- Keine Handpulssensoren, Brustgurt nicht im Lieferumfang
- Griffe fallen auf langen Fahrten hart aus
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