⚡ Last tested: April 2026 | Independent review — not sponsored
Concept2 BikeErg Review: The Unfiltered Truth After 6 Months
After six months of rigorous testing, the Concept2 BikeErg has earned its place as one of the most data-rich, performance-focused stationary bikes available in the UK. Built around the same air-resistance flywheel technology that made Concept2 famous with its rowing machines, the BikeErg delivers a uniquely honest workout experience — every watt, every calorie, every split is earned and accurately measured.
We tested the Concept2 BikeErg across a full spectrum of use cases: HIIT sessions, long steady-state aerobic rides, interval training programmes, and everyday low-impact cardio. Whether you’re a competitive cyclist chasing performance data, a CrossFit athlete needing a reliable conditioning tool, or someone rehabbing an injury and requiring joint-friendly cardio, this machine promises a lot. But does it deliver? In this Concept2 BikeErg review, we give you the unfiltered verdict — including the bits the brand won’t tell you themselves.
Quick Verdict
| Overall Score | 8.5 / 10 |
| Best For | Data-driven athletes, CrossFit enthusiasts, rehab and low-impact cardio users |
| Avoid If | You want built-in entertainment screens, ride simulation, or a budget-friendly option |
| Price | Approximately £990 (check for current pricing) |
| Free Trial | No free trial — physical product purchase only |
| Our Rating | ⭐⭐⭐⭐½ (8.5/10) |
What Is Concept2 BikeErg?
The Concept2 BikeErg is a high-performance air-resistance stationary bike manufactured by Concept2, the Vermont-based company widely regarded as the gold standard in ergometer design. While the brand built its reputation on the legendary RowErg rowing machine, the BikeErg applies the same engineering philosophy to cycling — prioritising accurate performance measurement above all else.
Rather than relying on magnetic resistance or electromagnetic braking systems that can vary in accuracy, the BikeErg uses a chain-driven flywheel with a damper lever (just like its rowing siblings), meaning resistance is entirely determined by how hard you pedal. There are no preset resistance levels — the harder you push, the harder it gets. This makes it an exceptionally honest machine for training.
It connects to Concept2’s free ErgData app, integrates with third-party platforms including Zwift and Garmin, and records data to the online Concept2 Logbook. In the UK, it’s particularly popular in CrossFit boxes, university sports facilities, and among serious home gym owners.
Key Features
Air Resistance Flywheel with Damper Control
The heart of the BikeErg is its familiar air-resistance flywheel. Unlike magnetic resistance bikes that offer a smooth, somewhat artificial feel, the flywheel generates resistance proportional to your effort. A damper lever (adjustable from 1–10) controls the volume of air entering the flywheel cage, effectively mimicking different bike gear feels — low settings feel like a road bike, higher settings simulate off-road or sprint conditions. This is a nuance most competitors simply don’t offer.
PM5 Performance Monitor
The included PM5 monitor is one of the most capable displays in the stationary bike market. It tracks watts, calories per hour, pace per 500m equivalent, cadence (RPM), heart rate (with compatible chest strap), and distance. It connects via Bluetooth and ANT+ to devices and apps, stores up to 100,000 metres of workout history on-device, and includes pre-built interval programmes. The display is functional rather than flashy — no touchscreen, no entertainment — but for performance athletes, it’s everything you need.
Adjustable Seat and Handlebar Positioning
The BikeErg offers both horizontal and vertical seat adjustment, plus handlebar height adjustment. The seat post uses a standard 27.2mm diameter, meaning you can swap it out for a saddle of your preference — a thoughtful detail that serious cyclists will appreciate. The geometry caters well to a wide range of body sizes, though very tall riders (above 6’4″) may find the fit slightly limited compared to a bespoke road bike setup.
Compatibility with Third-Party Apps and Platforms
Out of the box, the BikeErg pairs seamlessly with Zwift, Garmin Connect, Polar Flow, and the Concept2 ErgData app. It does not have a built-in subscription service or proprietary app ecosystem, which is either a feature or a flaw depending on your perspective. For athletes who already have their preferred fitness ecosystem, this open approach is genuinely liberating. For those wanting a guided, gamified experience out of the box, there’s a learning curve involved.
How Concept2 BikeErg Compares
| Feature | Concept2 BikeErg | Assault AirBike | Peloton Bike |
|---|---|---|---|
| Air Resistance | ✅ | ✅ | ❌ |
| Accurate Wattage Output | ✅ | ✅ | ✅ |
| Built-in Screen / Entertainment | ❌ | ❌ | ✅ |
| Compatible with Zwift | ✅ | ❌ | ❌ |
| Upper Body Arms | ❌ | ✅ | ❌ |
| Monthly Subscription Required | ❌ | ❌ | ✅ |
| UK Availability | ✅ | ✅ | ✅ |
| Approx. UK Price | ~£990 | ~£900 | ~£1,295+ |
Pros and Cons
✅ Pros
- Industry-leading accuracy for wattage and calorie measurement
- No ongoing subscription fees — one-time purchase
- Open ecosystem — works with Zwift, Garmin, Polar and more
- Extremely durable build quality — commercial-grade construction
- Standard 27.2mm seat post for easy saddle upgrades
- PM5 monitor stores comprehensive workout history on-device
- Low-impact on joints — excellent for injury rehab and recovery
❌ Cons
- Flywheel generates noticeable noise — not ideal for flats or shared walls
- PM5 screen lacks touchscreen and entertainment capability
- High upfront cost compared to mid-range alternatives
- No upper-body engagement unlike the Assault AirBike
- Minimalist aesthetic won’t appeal to those wanting a premium studio feel
Pricing
The Concept2 BikeErg is a premium piece of equipment with a single, straightforward pricing structure — there are no tiers, no bundles, and crucially, no ongoing subscription costs.
- Concept2 BikeErg (Standard): Approximately £990 including the PM5 monitor
- Optional extras: Heart rate monitor belt (approximately £35–£50), floor mat (recommended for home use, approximately £60–£80)
- Delivery: Concept2 UK offers free delivery to mainland UK addresses
- Warranty: Two-year manufacturer’s warranty on the frame; five years on the frame for commercial use when registered
Compared to Peloton, which adds a monthly subscription on top of the hardware cost, the Concept2 BikeErg’s total cost of ownership is considerably lower over a multi-year period. There are no hidden fees, no app paywalls, and no content subscriptions required to access the full functionality of the machine.
Who Is Concept2 BikeErg Best For?
Perfect For:
- CrossFit athletes and functional fitness enthusiasts — The BikeErg is a staple in CrossFit programming precisely because its wattage output is consistent and measurable, making it ideal for prescribed workouts like “20 calories for time.”
- Cyclists seeking an indoor training alternative — Road and track cyclists who want accurate power data without the complexity (and cost) of a smart trainer and dedicated road bike will find the BikeErg an excellent complement to outdoor training.
- Rehabilitation and injury recovery — The low-impact, smooth pedalling motion is gentle on knees, hips, and lower back, making it a popular choice for physiotherapy settings and post-injury conditioning.
- Data-driven athletes and coaches — If you track splits, compare sessions over time, and care deeply about accurate performance metrics, the PM5 monitor and Concept2 Logbook integration is hard to beat.
- Home gym owners wanting commercial-grade durability — The BikeErg is built to last decades with minimal maintenance. If you want a machine you’ll never need to replace, this is it.
Not Ideal For:
- Beginners seeking motivation through gamification — If you need guided classes, instructor-led sessions, and a leaderboard to stay engaged, the BikeErg’s minimalist PM5 monitor may feel underwhelming compared to Peloton or Zwift-integrated bikes with built-in screens.
- Noise-sensitive environments — The air flywheel produces a distinctive whooshing sound that increases with effort. In an apartment or a home with shared walls, this could cause friction with neighbours during early morning or late evening sessions.
- Those wanting a full-body workout machine — Unlike the Assault AirBike, which incorporates moving handlebars to engage the upper body, the BikeErg is a lower-body-focused machine.
- Budget-conscious buyers — At approximately £990, this isn’t an impulse purchase. If your budget is under £500, there are capable alternatives that will serve casual users well.
Our Verdict
After six months of regular use, the Concept2 BikeErg remains one of the few stationary bikes we’d unreservedly recommend to serious athletes and performance-focused home gym owners. Its accuracy, build quality, and open compatibility with third-party platforms set it apart from a crowded market of machines that prioritise aesthetics and subscription revenue over actual training value. The lack of a touchscreen and the flywheel noise are genuine drawbacks — but they’re the price of getting a machine that’s built to perform rather than to impress on an Instagram reel.
If you’re serious about your training and want a machine that will outlast three or four generations of Pelotons without costing a penny more in subscriptions, the BikeErg is genuinely excellent.
| Category | Score |
|---|---|
| Value for Money | 8/10 |
| Features | 9/10 |
| Ease of Use | 8/10 |
| UK Availability | 9/10 |
| Overall | 8.5/10 |
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Frequently Asked Questions
Is the Concept2 BikeErg worth the money?
For serious athletes and those who prioritise accurate performance data, yes — the Concept2 BikeErg is worth the investment. Its durable build quality means it’s a long-term purchase with no ongoing subscription fees. Casual users may find better value in a mid-range magnetic resistance bike, but for those who train with purpose, the BikeErg pays for itself over time.
How noisy is the Concept2 BikeErg?
The air-resistance flywheel produces a noticeable whooshing sound that increases with intensity. It’s quieter than the Assault AirBike but louder than most magnetic resistance bikes. It’s manageable in a house or detached garage but may cause issues in flats or rooms with thin shared walls, particularly during high-intensity intervals.
Does the Concept2 BikeErg work with Zwift?
Yes. The Concept2 BikeErg connects to Zwift via Bluetooth or ANT+, making it fully compatible with the platform’s virtual cycling worlds. However, the BikeErg does not support ERG mode in the same way a smart trainer does — resistance adjusts based on your effort rather than automatically responding to Zwift’s terrain gradients. You’ll need to manage your output manually.
What is the difference between the Concept2 BikeErg and the Assault AirBike?
The primary difference is upper-body engagement — the Assault AirBike features moving handlebars that work the arms and shoulders simultaneously, making it a full-body conditioning tool. The BikeErg focuses purely on lower-body output with greater precision in wattage measurement. The BikeErg also integrates with more third-party platforms and has a more refined, adjustable fit.
Can the Concept2 BikeErg be used for rehabilitation?
Absolutely. The smooth, low-impact pedalling motion of the BikeErg makes it well suited to rehabilitation from knee, hip, and lower back injuries. Many physiotherapy clinics use Concept2 equipment for this reason. The ability to set very low resistance and monitor effort accurately makes progressive overload during recovery straightforward and safe.