YOSUDA exercise bike 002 vs Under MR-S04
Both the YOSUDA exercise bike 002 and the Under MR-S04 sit in the budget-to-mid-range indoor bike category and share a 4.4-star rating, so the choice comes down to price, weight capacity, and how much owner feedback matters to you. The YOSUDA exercise bike 002 lists at $189.99 and has accumulated 25,034 reviews, making it one of the most reviewed bikes in this price range. It uses friction resistance, holds riders up to 300 pounds, and weighs 27 kilograms. The Under MR-S04 lists at $109.99 and has 1,359 reviews. It weighs just 18 pounds and supports riders up to 280 pounds, but its resistance type is not published in the product data. A $80 price gap and a large difference in verified owner feedback are the two factors most buyers will weigh.
Quick winner
The YOSUDA exercise bike 002 is the stronger pick for most buyers. Its 25,034 reviews signal long-run reliability at this price point, it carries a 300-pound weight limit, and friction resistance is a well-understood, easy-to-service mechanism. The Under MR-S04 wins only on price and portability, at 18 pounds versus 27 kilograms for the YOSUDA.
Key differences, measured
- The Under MR-S04 is 42% cheaper ($109.99 vs $189.99).
Side-by-side specs
| Spec | YOSUDA exercise bike 002 | Under MR-S04 Exercise Bike |
|---|---|---|
| Price | $189.99 | $109.99 |
| Rating | ||
| Weight | 27 Kilograms | 18 Pounds |
| Max User Weight | 300 Pounds | 280 Pounds |
| Color | Black | Black & Blue |
The two contenders
YOSUDA exercise bike 002

The YOSUDA exercise bike 002 is a metal-frame indoor exercise bike priced at $189.99. It has earned 4.4 stars across 25,034 reviews, with 1,000 units bought last month. Friction resistance keeps the mechanism simple and serviceable. The bike supports riders up to 300 pounds and weighs 27 kilograms, giving it a stable, planted feel on the floor. Gymso is an Amazon Associate and earns from qualifying purchases; rankings reflect verified demand and published specs, not lab tests.
Buy this if: Buy the YOSUDA exercise bike 002 if you want a metal-frame bike backed by 25,034 reviews, need a 300-pound weight limit, and prefer a known friction-resistance mechanism. It suits riders who plan to use the bike daily and want peace of mind from a large, verified owner base, and who can stretch to the $189.99 price.
Check price on AmazonUnder MR-S04 Exercise Bike

The Under MR-S04 is an indoor exercise bike priced at $109.99, rated 4.4 stars across 1,359 reviews, with 1,000 units bought last month. At 18 pounds it is notably lighter than the YOSUDA exercise bike 002 and is easier to move between rooms. It supports riders up to 280 pounds. The resistance type is not published in the product data; verify on the product page before purchasing if resistance mechanism matters to your training.
Buy this if: Buy the Under MR-S04 if your budget is under $110, you need a lightweight bike (18 pounds) that is easy to reposition, and a 280-pound weight capacity is enough. It is a reasonable starting point for occasional riders who are not yet ready to commit to a higher-priced model, provided you confirm the resistance type suits your needs before ordering.
Check price on AmazonFrequently asked questions
How much does each bike cost?
The YOSUDA exercise bike 002 is priced at $189.99. The Under MR-S04 is priced at $109.99, a difference of $80.
Which bike supports a heavier rider?
The YOSUDA exercise bike 002 supports up to 300 pounds. The Under MR-S04 supports up to 280 pounds.
What resistance type does the YOSUDA exercise bike 002 use?
The YOSUDA exercise bike 002 uses friction resistance, which is a simple and widely used mechanism in this price range.
What resistance type does the Under MR-S04 use?
The resistance type for the Under MR-S04 is not published in the product data. Verify this detail on the product page before buying if resistance mechanism is important to your training.
Which bike has more owner reviews?
The YOSUDA exercise bike 002 has 25,034 reviews rated at 4.4 stars. The Under MR-S04 has 1,359 reviews also at 4.4 stars. Both had 1,000 units bought last month at the time of research.