JOROTO X4S Magnetic Exercise Bike
- 40 lb flywheel, magnetic resistance
- 100 resistance levels, belt drive
- 330 lb per the specs (the title says 350 lb)
- App supported, digital monitor, tablet and bottle holder
- 2 mm commercial steel handle, adjustable seat
Last refreshed Jun 30, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A magnetic indoor bike with a heavy flywheel, belt drive and a wide range of resistance levels. The listing gives two weight limits and an unclear rider height range.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0BBSVQM11Model: X4SCategory: Exercise Bikes
Overview
Six magnets act on a heavy flywheel as the rider pedals, and a belt drive carries the motion quietly. A digital monitor, an adjustable seat, and a tablet holder round out the home setup.
The reason to look is the smooth magnetic resistance and the large number of levels, delivered quietly. The limitation is a contradictory weight capacity and a rider height field that does not make sense.
Who it's for
Home users who ride in a living room or spare room without disturbing others can use it for steady indoor cycling. Taller or heavier riders should confirm the real limits with the seller, because the listing fields conflict.
Pros and cons
- Many resistance levels
- Tablet and bottle holder
- Assembly instructions included
- Weight limit fields conflict
- Rider height range unclear
- Heavy at ninety pounds
Performance notes
Magnets near the flywheel add resistance without contact, so there is no friction pad to wear. A heavy flywheel smooths each pedal stroke and carries momentum between pushes. The belt drive runs more quietly than a chain, which suits an apartment.
Specifications
| Brand | JOROTO |
|---|---|
| Model | X4S |
| Dimensions & fit | |
| Maximum Weight Recommendation | 330 poundshigher than 63% of 50 exercise bikes |
| Minimum Height | 4.9 feet |
| Item weight | 90 pounds |
| Item Dimensions D x W x H | 48.82 x 20 x 42.91 inches |
| Construction & materials | |
| Handle Material | 2 mm commercial steel |
| Other details | |
| Resistance Mechanism | Magnetic |
| Number of Resistance Levels | 100 |
| Drive System | Belt |
| Recommended Uses For Product | Indoor |
| Assembly Instructions Description | Included |
| Special Features | Adjustable resistance, adjustable seat, distance and speed monitor, flywheel |
Closest rivals on specs
Frequently asked questions
How big is the JOROTO X4S exercise bike?
The dimensions are 48.82 x 20 x 42.91 inches, and the bike weighs 90 pounds.
What is the weight limit of the JOROTO X4S?
The specs say 330 pounds while the title says 350 lb. Confirm with the seller.
What rider height does it fit?
The minimum height is 4.9 feet. The maximum height field reads 117 centimeters, which looks like a data error.
Does it connect to an app?
The title says app supported, but no app name is listed.