This MERACH S36L3 review covers an indoor cycling bike with a 21.5-inch built-in screen, 16 magnetic levels and a 330-lb rating.
The MERACH S36L3 ranks #1 in our best exercise bike with screen guide and makes the top 5 of 1 more.
MERACH S36L3 Review: The Short Answer
Our verdict
FitScore 54/100
MERACH S36L3
Buy it if you want a big built-in screen on a quiet magnetic spin bike without a required membership. Skip it if you want transport wheels or a bike you can move every day.
- Spin (indoor cycling), magnetic, 16 levels
- Rated for 330 lb, 43.2 x 18.9 in footprint
- 66 lb
Best Usage
- Screen-led rides in a home gym
- Quiet magnetic intervals
- Steady cardio for a shared household
Best For
- Riders who want a large screen
- Households with several riders
- Riders who want no required membership
Not For
- Riders who move the bike often
- People above the 330-lb rating
- Riders over about 6 ft 4 in
Key Specs
- Type: Spin (indoor cycling)
- Resistance: Magnetic, 16 levels
- Max user weight: 330 lb
- Footprint: 43.2 x 18.9 in
- Warranty: 2 yr (frame and parts)
Pros
- 21.5-inch built-in screen
- 16 magnetic resistance levels
- 2-year frame and parts warranty
Cons
- No transport wheels
- Membership optional for classes
- 66-lb frame to move
MERACH S36L3 Specs at a Glance
| Spec | MERACH S36L3 | What it means for you |
|---|---|---|
| Type | Spin (indoor cycling) | An indoor cycling bike: you sit over the pedals and can stand to climb, as on a road bike. |
| Resistance | Magnetic, 16 levels | Magnetic resistance with 16 set levels: quiet, with no pads to wear out. |
| Flywheel | Not stated | Magnetic resistance does the work here: the ride feel comes from the magnet and the 16 levels, not from a heavy wheel. |
| Max user weight | 330 lb | A rating above most bikes of this type, which suits heavier riders. |
| Size (length × width) | 43.2 × 18.9 in | A narrow frame that fits a corner of a bedroom or home gym. |
| Product weight | 66 lb | A solid frame that stays planted when you stand to climb. |
| Rider fit | Riders 4’8″-6’4″ | Listed for riders from about 4 ft 8 in to 6 ft 4 in. |
| Seat and handlebar | Not stated | Set the seat height first so your knee keeps a slight bend at the bottom of the stroke, then the reach to the bars. |
| Console and programs | 21.5 in screen | A 21.5-inch built-in screen for classes and ride data. |
| Bluetooth and apps | Bluetooth | Bluetooth connects the bike to its app for classes and ride tracking. |
| Heart rate | Not stated | If you train by heart rate, plan on a wearable of your own. |
| Membership | Optional (extra classes) | Optional: you can ride without it, and a paid plan adds classes. |
| Storage and moving | No transport wheels listed, 66 lb | No fold and no transport wheels, so pick its spot before you build it. |
| Warranty | 2 year (frame and parts) | Two years on the frame and on parts. |
Check Amazon for current pricing and availability.
Check the warranty terms before you order: the FTC explains how to read a product warranty.
The CDC recommends that adults get at least 150 minutes of moderate-intensity aerobic activity a week, which steady cycling counts toward. Harvard Health Publishing lists about 252 calories in 30 minutes of moderate stationary cycling for a 155 lb person.
MERACH S36L3 FitScore
FitScore rates each exercise bike on its published specs, weighted for one buying intent (how we score). This review uses the weights of our best exercise bike with screen guide, where the MERACH S36L3 ranks #1 with the same score. Features (30%) counts most, then performance and durability (20% each), comfort (15%), affordability (10%) and practicality (5%). A buyer who wants a screen bike wants the classes and data built in, so features count, with a solid frame and a comfortable ride behind them.
FitScore for Bikes With a Screen
How this FitScore was calculated
This FitScore combines 6 category scores using the weights of the buying intent above.
- Durability (56.62): rated for 330 lb, warranty: 2 yr frame and parts and a 66 lb frame.
- Comfort (56): spin (indoor cycling) position, fits riders 4’8″-6’4″, seat and handlebar adjustment not stated and no backrest.
- Practicality (50): 43.2 x 18.9 in footprint, 66 lb, does not fold and no transport wheels listed.
- Features (50): 21.5 in screen, Bluetooth, an optional membership and no heart-rate input listed.
- Performance (49): magnetic resistance, 16 levels and flywheel weight not stated.
- Affordability (70): a mid-range affordability score for its class.
Screen, App and Membership
The 21.5-inch screen is the reason to choose this bike: classes, scenic rides and your ride data sit in front of you without a tablet.
The membership is optional. You can ride with the screen and the 16 levels without paying for a plan; the plan adds the class library.
Bottom line: a big screen without a required plan.
Resistance and Ride Feel
Resistance comes from a magnet with 16 set levels, so the ride stays quiet and you return to the same load each session. There are no friction pads to replace.
The bike weighs about 66 lb, enough to feel planted when you stand for a climb.
Bottom line: quiet, repeatable resistance for classes.
Fit, Capacity and Comfort
It is rated for 330 lb and listed for riders from about 4 ft 8 in to 6 ft 4 in, so most adults in a household can share it.
Riders taller than about 6 ft 4 in should look at a frame built for tall riders.
Bottom line: a wide fit range and a solid rating.
Footprint and Moving
The frame is about 43 by 19 inches, narrow for a screen bike. It has no transport wheels and does not fold, so build it where it will stay.
Bottom line: compact, but not made to move.
Warranty
Frame and parts each carry two years of cover, longer on parts than many bikes in this range.
Bottom line: an even two-year term.
MERACH S36L3 vs Rivals
Here is how the MERACH S36L3 compares with three other exercise bikes from our best exercise bike with screen guide, using the same FitScore weights.
| Comparehead to head | THIS REVIEW | Alternative 1 | Alternative 2 | Alternative 3 |
|---|---|---|---|---|
| Type | Spin (indoor cycling) | Spin (indoor cycling) | Spin (indoor cycling) | Spin (indoor cycling) |
| Resistance | Magnetic, 16 levels | Magnetic, 100 levels | Magnetic, 100 levels | Magnetic, 22 levels |
| Flywheel | Not stated | Not stated | Not stated | Not stated |
| Max user weight | 330 lb | 265 lb | 297 lb | 250 lb |
| Size (length × width) | 43.2 × 18.9 in | 50.98 × 20.87 in | 54 × 23 in | 54.8 × 22.6 in |
| Warranty | 2 year (frame and parts) | 1 year (frame and parts) | 5 year frame, 1 year parts | 10 year frame, 2 year parts |
| Check Price | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon | Check Price on Amazon |
Alternatives to the MERACH S36L3
Finer resistance: Choose the YESOUL G1M Plus if you want 100 levels against 16 levels. It ranks #2 in our best exercise bike with screen guide.
Longer coverage: Choose the Peloton Cross Training Bike if you want a 5 yr frame warranty. It ranks #3 in our best exercise bike with screen guide.
Higher durability score: Choose the ProForm Carbon Pro10 if you want a higher durability score with these weights (71.64 against 56.62). It ranks #4 in our best exercise bike with screen guide.
Final Verdict
The MERACH S36L3 is an indoor cycling bike with a 21.5-inch screen, 16 magnetic levels and a 330-lb rating. The screen and the optional membership are the draw; the trade-offs are no transport wheels and a frame you will not want to move often. If you would rather have 100 levels against 16 levels, the YESOUL G1M Plus is the closer fit.
MERACH S36L3 FAQ
It ranks in 2 of our exercise bike guides: #1 in best exercise bike with screen, #5 in best exercise bike for tall people. With the weights of our best exercise bike with screen guide it scores 54 out of 100, with performance 49, durability 56.62, comfort 56, practicality 50, features 50.
It is rated for riders up to 330 lb. The bike itself weighs 66 lb.
No. A paid membership is optional and adds extra classes; you can ride without it.
About 43.2 by 18.9 inches of floor space; add room around it to get on and off.
It has a 21.5-inch built-in screen for classes and ride data.
It is listed for riders from about 4 ft 8 in to 6 ft 4 in.
Two years on the frame and two years on parts.
Explore More Exercise Bike Guides
Best Exercise Bike With Screen (2026): 5 Bikes With a Built-In Display
Best Exercise Bike for Tall People (2026): 5 Bikes That Fit 6'4"+
Best Exercise Bike for Home (2026): 5 Picks Ranked by FitScore
Best Spin Bike for Home (2026): 5 Indoor Cycling Bikes Ranked
Best Recumbent Bike (2026): 5 Picks for Comfortable Home Cardio
Best Upright Exercise Bike (2026): 5 Picks Ranked by FitScore
This article contains affiliate links. If you click through and make a purchase, we may earn a small commission at no extra cost to you. As an Amazon Associate, we earn from qualifying purchases. We do not show prices because they change constantly: product details and availability can change at any time, so please check the current price and details directly on Amazon. Learn more. Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.
