Stages SB20 Smart Bike and 1 Year of Zwift

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Real bike feel. Real bike fit. Responsive, wide-range electronic resistance and a 50 lb free-spinning flywheel for an incredibly realistic feel when climbing, accelerating and coasting. Precision dual-sided power meter. User-configurable electronic shifting with sprint buttons. Smooth, silent Gates belt drive. Compatible with Zwift and built on a decade of commercial studio bike experience by the indoor cycling experts at Stages.

Now for a limited time: Get the most from your SB20 smart bike with a free 12 months of Zwift. Workout anytime, ride with friends & discover training plans for everyone.

The 1 year of Zwift will be provided following purchase as a unique code redeemable at For guidance on how to activate this please see this guide.

Stages SB20 Smart Bike and 1 Year of Zwift
360 Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Stages SB20 Smart Bike and 1 Year of Zwift Why upgrade to a smart bike?


The ANT+ and Bluetooth connected SB20 is optimized for the Zwift platform.

At the heart of the Stages Bike is a smooth, silent electronic resistance unit providing up to 2,200 watts (at 130 rpm) of stunningly realistic road feel. A 50lb oversized flywheel - largest of any Smart Bike - makes climbing, acceleration and coasting feel spot on.

Stages SB20 Indoor Bike optimized for ZwiftStages SB20 Indoor Bike optimized for Zwift
Stages SB20 real bike fitStages SB20 real bike fit


Designed to give you the perfect fit no matter your ride style or preferences.

With micro-adjust saddle fore/aft adjustment and handlebar reach/stack with laser-etched sizing scales, adjustable brake hoods and crank arm settings ranging from 165mm to 175mm, you can tune the Stages Bike to precisely replicate the fit and feel of your favorite bike and get the most out of your indoor rides.

Stages SB20 real world gearingStages SB20 real world gearing
Real World Gearing

Shimano or Campagnolo electronic and manual shifting to match your real world cycling. Configured with the Stages Link app.

Stages SB20 custom gearingStages SB20 custom gearing
Custom Gearing

Select from a traditional 53/39t and 11-28t road setup to a 1×12 modern MTB setup, with lots of options in between.

Stages SB20 resistance feelStages SB20 resistance feel
Resistance Feel

Smooth, silent electronic resistance provides up to 2,200 watts of stunningly realistic road feel.

Stages SB20 Dream DriveStages SB20 Dream Drive
Dream Drive

Dream Drive provides a sequential virtual drivetrain with up to 50 gears, up to a 55-11t high gear and a 1:2 low gear.

Ultimate Smoothness For Increased Performance

Performance, simplified. 

The simplicity of clipping in, connecting with technology, and riding with your perfect setup makes the SB20 your dream bike. Its incredible stability, super realistic feel and engineering mastery give you an ultra-reliable platform to achieve all your fitness goals.

Stages SB20 in homeStages SB20 in home
The Stages SB20 is a fantastic smart trainer. I cannot fault their customer service, who were friendly and very responsive. I’ve now owned this bike for 6 months and it’s been awesome... this thing is built like a tank and feels very stable both when riding normally and sprinting.
Stages SB20 ready to rideStages SB20 ready to ride


The smooth, silent and ultra-stiff SB20 Smart Bike outperforms any bike and wheel-off smart trainer combination. Say goodbye to drivetrain wear, noise, and messing with greasy drivetrains.

The SB20 ready to go whenever you are, and can be shared with other riders in your household. Simply put, if you're serious about indoor cycling, you need an SB20.

The crew behind Stages was building indoor bikes for national chains long before they launched Stages as a power-meter company, and that experience shows in this bike. It's rock-solid, easy to use, easy to adjust, and fits a wide range of riders... the ride feel is excellent, thanks to the 50lb flywheel.

World Class Stages Power

7 Grand Tours, 25 World Championships, 50 National Championships from the power meter that changed the cycling industry.

Always train with an accurate and reliable power meter. A Stages Gen 3 dual-sided power meter delivers +/- 1.5% precision power measurement. Train at home with the same meter the pros swear by. Multiple Tour de France victories can’t be wrong.

Stages SB20 power meterStages SB20 power meter
The SB20 is an amazing machine to ride. What marks the riding experience is more the stability, smoothness, and the shifting... It really is an amazing experience.
Stages SB20 with favorite cycling appsStages SB20 with favorite cycling apps


We provide the most comprehensive and longest warranty in the smart bike category.

We’ve poured over a 25 years worth of indoor studio bike design and manufacturing experience into the SB20, resulting in a whisper quiet, durable and feature-packed indoor machine that’ll deliver thousands of trouble-free miles.

Tools for a Real Bike Fit on SB20

Stages SB20 saddle positionStages SB20 saddle position
Saddle Position

Saddle fore/aft and height can accommodate riders from 4’-10” to 6’-10” in seconds. Every adjustment is secure and free of creaking or slipping.

Stages SB20 crank lengthStages SB20 crank length
Crank Length

With four pedal positions you can easily adjust the SB20 for 165, 170, 172.5 or 175mm crank lengths in seconds. Custom Allen wrench included.

Stages SB20 reach and stackStages SB20 reach and stack
Reach and Stack

 Quick-turn dials and levers allow you to adjust your stem length and height to nail your perfect handlebar position.

Stages SB20 handlebarsStages SB20 handlebars
Bar Options

You can swap the standard road bar with your own preferred shape including MTB bars and aero bars.

Stages SB20 real bike feelStages SB20 real bike feel

Real Bike Feel

The SB20 has the most realistic feeling of riding an outdoor bike indoors.

Customize and tune your exact virtual setup. The 50lb flywheel is what really makes the SB20 stand out. It is the only bike that can deliver the realistic inertia of outdoor riding making climbing, acceleration and coasting feel spot on.

Best In Class Control Modes

SIM, Workout, ERG and Manual modes enhance every ride experience.

The SB20 is packed with the most important control modes to offer a variety of riding experiences when using 3rd party apps or with the Stages Link app.

Stages SB20 control modesStages SB20 control modes
Condition New
Manufacturer Stages Cycling
Brand Stages Cycling
Weight 138 lbs / 62.5 kg
Dimensions (L×W×H mm) 58 in Length x 22.2 in Width x 46.7 in Height / 148 cm x 56 cm x 124 cm
Drive System CarbonGlyde featuring Gates® Carbon Drive™ carbon fiber belt
Frame Material High-strength Steel
Flywheel Type Freewheel
Flywheel Weight 50 lbs / 22.6 kg
Connectivity ANT+ and Bluetooth
Power Stages Power LR (dual-sided power meter)
Power Accuracy + / - 1.5%
Maximum Power 2200 Watts at 130 rpm
Maximum Virtual Gradient 25%
Crank Positions 165 mm, 170 mm, 172.5 mm or 175 mm
Q-Factor 157 mm
User Height Range 4' 10" in to 6' 10" in / 1.47 m to 2.08 m
Maximum User Weight 300 lbs / 136 kg
Number of Bottle Cages 2
Number of USB Ports 2
Pedals No
Return Policy Stages Cycling is happy to accept returns within 14 days of the original date of receipt. Items must be in new condition, purchased directly from Stages Cycling*, and in the original packaging.

SB20 Returns: Because of the size and weight of the bike, all return service is subject to a $250 restocking fee unless otherwise specified by Stages. No returns/refunds of product, once opened, shall be offered except in the case of manufacturer’s defect.
If you have any questions regarding a return or need help ordering the correct product please contact us at [email protected]

*For items purchased from an Authorized Stages Dealer please contact the dealer regarding their return policy.
Frame Warranty 10 Years - Covers manufacturing defects, not corrosion
Drivetrain Warranty 10 Years - Carbon belt only
Power Meter Warranty 1 Year
Bike Component Warranty 1 Year

How do I redeem my 1-year of Zwift?

The 1 year of Zwift will be provided following purchase as a unique code redeemable at

  1. New Customers must create an account on 
  2. Sign up for a monthly membership
  3. Go to the promotions tab, enter promo code and Redeem your 12 months

For additional guidance, please see this guide.

How do I connect the Stages SB20 to Zwift?

At the minimum, your SB20 needs to be paired to Zwift as a Controllable in order to function correctly. For the best performance in Zwift, Stages recommends you pair the left power meter as Power source and Cadence in Zwift. More information and steps can be found here.

Can I use Erg mode with Zwift?

Yes! Once your SB20 is paired as noted above, you can enable Erg mode when beginning a workout. Erg mode may take up to 30 seconds to adjust for your cadence and align the resistance with your workout target. More information can be found here

What is ERG mode?

ERG mode is a setting where a device controls the resistance of the bike based on a preset target (such as 150w). This mode can be utilized to maintain a consistent output with changes in cadence. It's most commonly used to perform a prescribed workout that calls for power targets for each interval. Using erg mode with Zwift eliminates the need to shift to find the target for each step and allows you to focus on complete the workout accurately. 

What size riders will fit on the Stages SB20?

The Stages Bike is designed to fit riders from 4'10 to 6'10. To accommodate this range, the bike features 4 crank length options and a large range of adjustability for saddle and handlebar position. 

How do I change gears on the SB20?

The Stages Bike features shift buttons located on the inside of both brake levers, as well as a secondary set of shift buttons in the drops of the handlebars. The two buttons by default will operate similar to a road bike, with the buttons on the left side working as larger shifts (big to little chainring) and the shifters on the right performing smaller gear changes. More information and a diagram can be found here.

How much noise does the SB20 bike make?

The Stages Bike uses an enclosed belt-drive system, which produces almost no noise. Expect around 50-55 dB of ambient noise while you are riding the bike. 

Can I change the handlebars?

The Stages Bike uses standard 31.8 clamp road handlebars. By using existing handlebar designs, all of the controls for the bike are removable and able to be installed on another set of drop handlebars. Any handlebars with a 31.8mm clamp can be used on the Stages bike. Optional shifter accessories can also be used to add shifters to aerobars or riser/flat handlebars. 

To add shifters to accessory aero bars, purchase the accessory remote shifters.

To add shifters to riser or flat handlebars, purchase the mountain bike shifter

Can I use a coupon code on this offer?

No. This offer is not compatible with additional discounting or coupon codes.

What are the terms for the 1-year of Zwift that is included in this offer?

  • 12-month membership codes must be redeemed by Dec 31, 2023
  • The membership code is redeemable for a single 12-month Zwift membership
  • 12-month membership can not be paused, transferred or deferred 
  • The code can not be redeemed for cash or replaced if lost 
  • Zwift membership valued $179.88 is non refundable
Stages SB20 Smart Bike and 1 Year of Zwift
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