ROCKBROS green mountain bike on white background.
ROCKBROS green mountain bike on white background.
ROCKBROS green mountain bike front headset and fork close-up on white background.
ROCKBROS bicycle handlebar with black grips and brake levers on a white background
ROCKBROS bicycle handlebar with black grips and brake levers on a white background
ROCKBROS bicycle seat with black seat post on a white background
ROCKBROS close-up of a bicycle wheel with disc brake and brand logo on a white background
ROCKBROS close-up of a bicycle's gear system on a white background
ROCKBROS close-up of a bicycle's rear wheel and gear system on a white background
ROCKBROS close-up of a bicycle chain and gear system on a white background.
ROCKBROS mountain bike with blue frame and black wheels on a white background
ROCKBROS mountain bike with a gradient design on a white background
ROCKBROS close-up of a bicycle handlebar with visible brand logo on a white background
ROCKBROS close-up of black bicycle handlebars with grips and control levers on a white background
ROCKBROS bicycle seat and seat post on a white background
ROCKBROS close-up of a bicycle wheel with disc brake and brand logo on a white background
ROCKBROS close-up of a bicycle chain and gear system.
ROCKBROS close-up of a bicycle's gear system on a white background
ROCKBROS eed bicycle with size chart on a white background
ROCKBROS green mountain bike on white background.
ROCKBROS green mountain bike on white background.
ROCKBROS green mountain bike front headset and fork close-up on white background.
ROCKBROS bicycle handlebar with black grips and brake levers on a white background
ROCKBROS bicycle handlebar with black grips and brake levers on a white background
ROCKBROS bicycle seat with black seat post on a white background
ROCKBROS close-up of a bicycle wheel with disc brake and brand logo on a white background
ROCKBROS close-up of a bicycle's gear system on a white background
ROCKBROS close-up of a bicycle's rear wheel and gear system on a white background
ROCKBROS close-up of a bicycle chain and gear system on a white background.
ROCKBROS mountain bike with blue frame and black wheels on a white background
ROCKBROS mountain bike with a gradient design on a white background
ROCKBROS close-up of a bicycle handlebar with visible brand logo on a white background
ROCKBROS close-up of black bicycle handlebars with grips and control levers on a white background
ROCKBROS bicycle seat and seat post on a white background
ROCKBROS close-up of a bicycle wheel with disc brake and brand logo on a white background
ROCKBROS close-up of a bicycle chain and gear system.
ROCKBROS close-up of a bicycle's gear system on a white background
ROCKBROS eed bicycle with size chart on a white background
33% off
SKU: 70010001210

MT300 27.5 Inch Mountain Bike

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By ROCKBROS
Color: Green
Size
Shipping

Shipping Costs & Delivery Times

1. Standard Shipping

  • Under $100: $5.99
  • $100+: Free
  • Delivery: 3–5 business days

2. Extended Delivery

  • International stock: 7–12 business days
  • Bicycles: 20–25 business days

3. Flat Fees

  • Large items: $10
  • Children’s bikes: $20
  • Folding bikes: $40
  • Full-size bikes: $150

4. No Shipping To Alaska, Hawaii, Puerto Rico, or the U.S. Virgin Islands.
Returns & Warranty
  • Clean Design, Everyday Reliability
    The lightweight aluminum alloy frame features internal cable routing to help protect cables from mud, dirt, and trail debris. With its clean appearance and durable construction, it's built for everyday commuting, fitness rides, and weekend adventures.
  • Confident Control for Fitness Rides and Commuting
    A lockout suspension fork smooths out rough roads and light trails, while Shimano MT200 hydraulic disc brakes provide responsive braking with minimal hand effort. Whether you're running errands, exercising, or exploring local paths, you'll enjoy confident handling and reliable control.
  • Shimano CUES 2×9 Drivetrain – Smooth and Easy to Use
    The Shimano CUES 2×9-speed drivetrain delivers a wide gear range and dependable shifting performance. Climb gentle hills, cruise flat roads, and navigate changing terrain with ease. Designed for durability and low maintenance, it's ideal for everyday riding.
  • Puncture-Resistant Tires for Mixed Terrain
    Equipped with 27.5 × 2.1-inch reinforced tires, the MT300 is ready for paved roads, bike paths, and compact gravel trails. The versatile tread pattern balances grip, rolling efficiency, and puncture resistance, helping you ride farther with greater confidence.
  • Comfort-Focused Sizing and Geometry
    Available in three frame sizes:
  1. S (16"): 160–175 cm (5'3"–5'9")
  2. M (18"): 170–185 cm (5'7"–6'1")
  3. L (21"): 175–198 cm (5'9"–6'6")

The comfort-oriented geometry promotes a natural riding position, helping reduce fatigue during daily commutes, fitness rides, and longer recreational outings.

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