---
product_id: 207694000
title: "Indoor Cycling Exercise Bike w/Pulse Sensors & 4-Way Adjustable Seat, Stationary Home Cardio Training Machine w/Micro-Adjustable Magnetic Resistance for Intensive Cardio Session"
brand: "sunny health & fitness"
price: "1468809CFA"
currency: XOF
in_stock: true
reviews_count: 4
url: https://www.desertcart.sn/products/207694000-indoor-cycling-exercise-bike-w-pulse-sensors-and-4-way
store_origin: SN
region: Senegal
---

# Micro-adjustable magnetic resistance for precise control Near-silent belt-drive for distraction-free rides 40-lb cast-iron flywheel for smooth momentum Indoor Cycling Exercise Bike w/Pulse Sensors & 4-Way Adjustable Seat, Stationary Home Cardio Training Machine w/Micro-Adjustable Magnetic Resistance for Intensive Cardio Session

**Brand:** sunny health & fitness
**Price:** 1468809CFA
**Availability:** ✅ In Stock

## Summary

> 🚴‍♂️ Ride Smart, Ride Silent, Ride Sunny – Your Ultimate Home Cycling Upgrade!

## Quick Answers

- **What is this?** Indoor Cycling Exercise Bike w/Pulse Sensors & 4-Way Adjustable Seat, Stationary Home Cardio Training Machine w/Micro-Adjustable Magnetic Resistance for Intensive Cardio Session by sunny health & fitness
- **How much does it cost?** 1468809CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/207694000-indoor-cycling-exercise-bike-w-pulse-sensors-and-4-way)

## Best For

- sunny health & fitness enthusiasts

## Why This Product

- Trusted sunny health & fitness brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Momentum:** 40-pound flywheel ensures consistent speed and a pro-level cycling feel.
- • **Whisper-Quiet Workouts:** Silent belt-drive lets you train anytime without disturbing your space or schedule.
- • **Seamless Smart Integration:** Pair with SunnyFit App and optional cadence sensor for 1000+ guided workouts.
- • **Tailored Fit for Every Frame:** 4-way adjustable seat and 2-way handlebars customize your ride for ultimate comfort.
- • **Real-Time Performance Tracking:** Pulse sensors and LCD monitor keep your cardio stats front and center.

## Overview

The Sunny Health & Fitness SF-B1851 Indoor Cycling Bike combines a heavy 40-lb cast-iron flywheel with whisper-quiet belt drive and micro-adjustable magnetic resistance, delivering a smooth, customizable, and distraction-free cardio experience. Designed for users up to 300 lbs, it features pulse-sensing handles, a performance LCD monitor, and a fully adjustable seat and handlebars to fit a wide range of body types. Compatible with the SunnyFit App and optional cadence sensor, it transforms your home workouts with interactive training and real-time metrics.

## Description



## Features

- 【40-LB FLYWHEEL】The swift 40-pound flywheel will make it easy to get your exercise cycling routine started, while also maintaining speed and consistency as you pedal. The cast-iron make prevents any issues with pulleys or loud sounds.
- 【SILENT AND SWIFT RIDE】Built with a modern near-silent belt-drive mechanism to give a smooth and consistent performance, removing any distractions as you work out no matter the time of day even when people are sleeping.
- 【MAKE YOUR SUNNY BIKE SMART】With an easy addition of our CB110 Cadence Sensor (sold separately), get everything you need to track cycling metrics. Pair with the Free Sunnyfit App to enhance your cycling with 1000+ workout videos synced to your bike.
- 【MAGNETIC RESISTANCE】The integrated magnetic resistance puts you in full control of your workout intensity. It delivers consistent performance that makes your workout easy when you want it, hard when you need it.
- 【PERFOMANCE MONITOR AND TABLET MOUNT】The LCD lets you check your speed, distance, RPM, pulse, and calories-burned at just a glance as you ride on your exercise cycle. Use our SunnyFit App with the tablet mount to ride with our free workout videos.
- 【PULSE-SENSING HANDLES】Monitor your cardiovascular performance with the built-in pulse-sensing grips so you can actively check your workout progress, displayed on the stationary bike performance monitor.
- 【DESIGNED FOR YOU】Soft, comfortable 2-way adjustable handlebars and 4-way adjustable seat lets you adjust your indoor bicycle to match your frame. The caged foot pedals can also be adjusted to fit your shoes, ensuring a comfortable ride.
- 【EASY TO USE】Intuitive dial to turn for resistance, emergency brake by pressing the dial, bottle holder, and dumbbell holder let you ride with ease. Built with transport wheels to make moving around a breeze, no matter the space.
- 【HEAVY DUTY & SAFE BUILD】Designed with strong and sturdy materials for optimal stability while cycling and supports users up to 300 LBs, made to provide you with a safe experience. Adjustable features, 40 LB flywheel, and more to keep users safe.
- 【PREMIER U.S.-BASED BRAND】With 20+ years of excellence, Sunny Health & Fitness delivers top-notch equipment dedicated to excellence. With our devoted support team and certified trainers enjoy an unmatched FIT FOR EVERYONE experience.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Sunny Health & Fitness |
| Special Feature | Adjustable Seat |
| Color | Silver |
| Power Source | Battery Powered |
| Recommended Uses For Product | Indoor |
| Item Weight | 50 Kilograms |
| Material | Alloy Steel |
| Resistance Mechanism | Magnetic |
| Product Dimensions | 22"D x 49"W x 46.5"H |
| Maximum Weight Recommendation | 300 Pounds |
| Handle Material | Alloy Steel |
| Model Name | SF-B1851 |
| Maximum Height | 182.88 Centimeters |
| Minimum Height | 152.4 Centimeters |
| Drive System | Belt |
| UPC | 815749012432 |
| Global Trade Identification Number | 00815749012432 |
| Item Package Dimensions L x W x H | 41.73 x 34.65 x 10.24 inches |
| Package Weight | 50 Kilograms |
| Item Dimensions  LxWxH | 22 x 49 x 46.5 inches |
| Brand Name | Sunny Health & Fitness |
| Manufacturer | Sunny Health & Fitness |
| Part Number | SF-B1851 |
| Style | Premium |
| Included Components | 2 AAA Battery, Assembly Hardware & Tools, Magnetic Exercise Bike, User Manual |

## Product Details

- **Brand:** Sunny Health & Fitness
- **Special Feature:** Adjustable Seat
- **Color:** Silver
- **Power Source:** Battery Powered
- **Recommended Uses For Product:** Indoor
- **Item Weight:** 50 Kilograms
- **Material:** Alloy Steel
- **Resistance Mechanism:** Magnetic
- **Product Dimensions:** 22"D x 49"W x 46.5"H
- **Maximum Weight Recommendation:** 300 Pounds

## Images

![Indoor Cycling Exercise Bike w/Pulse Sensors & 4-Way Adjustable Seat, Stationary Home Cardio Training Machine w/Micro-Adjustable Magnetic Resistance for Intensive Cardio Session - Image 1](https://m.media-amazon.com/images/I/71mg-WQDRaL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is the monitor battery only, or can it be plugged in to wall?**
A: The monitor uses a battery only.

**Q: I tried to change the seat, but the bolt(s) on the existing seat wouldn't budge with a wrench. Any tips, suggestions, warnings re changing the seat?**
A: Use 2 wrenches on both nuts. One to hold & one to unscrew.

**Q: My magnet will no longer stay in place. how do i go about fixing this? it stays close to the wheel no matter how light i go with resistance.**
A: I don’t know. I have no problems with this bike other than the seat being small and hard.

**Q: What is the lowest total height of the handlebars and device mount? I would like to place this underneath my standing desk.**
A: 41" inches. With the handlebars locked in in the lowest position, the measurement from the floor to the top edge of the device mount is 41". the handlebars are slightly lower than the top edge of the device mount.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Bike; Great Price! 👍🏽
*by T***E on July 16, 2025*

I have purchased a few Sunny brand items and have found it to be a reputable seller of exercise equipment! That said, love my new indoor spinner bike. It is reasonably priced, sturdy, balanced, easily assembled and arrived quickly! You get a very smooth and quiet ride (apartment dweller)I recommend this exercise bike.

### ⭐⭐⭐⭐⭐ Great for the price!
*by B***. on June 29, 2020*

I decided to take up spinning a little late in the pandemic so there wasn’t much to choose from as most bikes were out of stock or marked way up. My must haves included belt-driven, magnetic resistance, transport wheels, a device holder (so I could watch Peloton classes), and cadence (or RPM) tracker. Thankfully, Sunny came out with this bike in the last month or two so it was in stock and priced very reasonably! Even though there weren’t many reviews, I took the plunge and ordered off Amazon so I could receive my bike in less than a week.The Good:Assembly was far easier than an Ikea dresser and took less than an hour. The bike is super silent thanks to the magnetic resistance and the belt drive. Also, I’m loving the micro resistance knob! While visible levels may be good for those who want to track their progress, I’m completely fine with judging how much to add based on how I’m feeling. For example, if the instructor says bring resistance to 50, I’ll take it to a resistance where I’m giving 50% of my strength. While I could have easily bought a wahoo cadence tracker, it was great to not have to spend the extra money! For those who are newbies like me, cadence is measured by RPM, so this bike does in fact track cadence. I was a little worried about the transport wheels since they looked a little flimsy in the photos, but they’re actually quite sturdy and they all me to swivel the bike easily when I’m moving it in front of the TV. At 150 lbs, I am able to move from seated to standing without feeling like the bike is going to fall over, it’s very sturdy as far as I can tell. And lastly, the price can’t be beat considering the features. I assume it’s less expensive due to the lower flywheel weight, but the ride still feels plenty smooth.The Bad(ish):Box came a little beaten up but the frame was surrounded by styrofoam so no damage done. On my first ride, there was a slight scraping noise coming from the flywheel but after adjusting the bike it went away so I assume I was putting too much pressure on the front of the bike. Additionally, I felt and heard a slight thumping noise each revolution. After some trial and error, I found that one of my pedals was too loose and needed tightening. The seat is wide, which may be good for those who sit upright when cycling and plan to cycle for an extended amount of time, but I am using this bike strictly for Peloton classes so I’ve decided to buy a more narrow seat. On their site they describe this as an endurance bike so a wide seat is to be expected, just not what I need. Some thing that may bother someone else is that you can only see one metric at a time on the screen; however, I only ever look at the RPM tracker so this doesn’t bother me. So all of the negative things I experienced with this bike were either not important to me or it was fixable, therefore I am not taking off any stars.Overall this bike is a great entry-level or budget bike. It met all my minimum requirements at less than $400, so I am very happy with my purchase.

### ⭐⭐⭐⭐ Good beginner bike
*by P***E on February 11, 2023*

I am trying to start exercising so I don’t have big standards. It is quiet, adjustable and compact which is perfect for me. It was easy to put together too. The “computer” which is supposed to track your distance, time etc didn’t work because the sensor that sits near the pedals was faulty. I also broke off a little plastic tab in testing it for customer support which ended up inside the bike and so then I had to take apart the area around the pedals to remove the piece and end the noise that resulted. I did get a new sensor quickly which successfully worked but it did not sit well where installed and then broke in half as I tried to troubleshoot how to have it work and not cause noise as the pedal mechanism hit it. Of course now the computer doesn’t work at all.The original bike came with a big ugly gob of glue around the sensor probably because this sensor doesn’t sit well. So I give up on that sensor. I don’t really care about rpm and all that anyway but was hoping all parts would work.So the bike works but if you are serious and want to track your stats, look elsewhere or buy your own tracking device.

## Frequently Bought Together

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-23*