ROCKBROS MT·200 27.5" Mountain Bike 24 Speeds 16/18/21 Inch Lightweight Aluminium Frame…
- Mountain Bike
- 27.5 inches
- Aluminum
- Front
A reasonably equipped 24-speed mountain bike with lockout suspension and disc brakes across three sizes, worth checking your height against the frame chart before buying.
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How it ranks among the 95 mountain bikes we track
0 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 95 mountain bikes we track - how the scorecard works · full mountain bikes data report. Confidence: limited - limited rating history.Last refreshed Jun 21, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
A 27.5-inch aluminum-frame mountain bike with a 24-speed Altus and Tourney drivetrain, a lockout suspension fork and mechanical disc brakes, sold in three frame sizes for adult riders.
The drivetrain pairs a Tourney EF500 3-speed shifter and Tourney TY300 front derailleur with an Altus M310 8-speed rear derailleur for 24 total gear combinations, a mid-range setup rather than a premium groupset. Internal cable routing on an aluminum frame is a detail more common on higher-priced bikes, and the listing calls it out specifically. Total bike weight is listed at 14.6 kg with a combined rider-plus-cargo load limit of 100 kg.
- 27.5-inch aluminum frame, 24-speed Altus and Tourney drivetrain
- Lockout suspension fork with spring preload adjustment
- Mechanical disc brakes front and rear
- Three frame sizes: 16-inch, 18-inch, 21-inch
Who it's for
Adult riders shopping for a mountain bike sized to their height, since three frame sizes cover roughly 5-foot-3 to 6-foot-6, who want a lockout front fork and disc brakes for mixed trail and commuting use. Not aimed at riders needing full suspension for aggressive downhill terrain.
Strengths and trade-offs
Drawn from this product's published specifications.
- 24-speed Altus and Tourney drivetrain for a wide gear range
- Lockout suspension fork for climbing vs descending
- Internal cable routing protects lines from mud and debris
- Three frame sizes matched to rider height
- Front suspension only, no rear suspension
- Mechanical rather than hydraulic disc brakes
- No rating or review data on this listing
Performance notes
The lockout switch on the suspension fork is a mechanical spring preload adjustment, toggling between a firmer setting for climbing efficiency and an open setting that absorbs impacts on descents, rather than an electronically adjustable damper. The 27.5x1.95-inch tires use a reinforced casing aimed at puncture resistance from thorns and debris, which matters more for off-road use than smooth pavement.
Specifications
| Brand | Rockbros |
|---|---|
| Dimensions & fit | |
| Wheel Size | 27.5 inches |
| Size | 21 inches |
| Capacity & performance | |
| Number Of Speeds | 24 |
| Age Range Description | Adult |
| Construction & materials | |
| Frame Material Type | Aluminum |
| Color | Red |
| Other details | |
| Suspension Type | Front |
| Bike Type | Mountain Bike |
| Brake Style | Disc |
| Additional Features | Disc |
How it compares
This product against the closest alternatives we track in mountain bikes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| ROCKBROS MT·200 27.5" Mountain Bike 24 Speeds 16/18/21 Inch Lightweight Aluminium Frame…This product | - | - | 2.7 / 5 |
| Mongoose Dolomite Fat Tire Mountain Bike | 4.4 / 5 | 2,281 | 4.1 / 5 |
| Mongoose Malus Mens and Women Fat Tire Mountain BikeBrand | 4.4 / 5 | 1,500 | 4.1 / 5 |
| Schwinn Bonafide Men and Women Mountain BikeSchwinn | 4.2 / 5 | 667 | 4.1 / 5 |
| WEIZE Mountain Bike, 24 26 27.5 inch Outdoor MTB Bicycle, 6/18-Speed High-Carbon Steel…Weize | 4.1 / 5 | 599 | 4.0 / 5 |
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Questions about the Rockbros mountain bikes
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What frame size does the ROCKBROS MT 200 offer for a 5-foot-8 rider?
The 18-inch (Size M) frame is listed for riders roughly 170-185cm, about 5-foot-7 to 6-foot-1.
Does the ROCKBROS MT 200 have full suspension?
No, it has a front suspension fork with lockout; there is no rear suspension.
What is the ROCKBROS MT 200's total weight capacity?
The listing states a maximum combined load of 100 kg for bike, rider and luggage.