G3 MTB Disc Brake Rotor 160mm 180mm 203mm | Shimano
G3 MTB Disc Brake Rotor 160mm 180mm 203mm | Shimano
G3 MTB Hydraulic Brake Disc Rotor — 160mm / 180mm / 203mm
Upgrade your mountain bike's stopping performance with this precision-engineered G3 brake rotor. Available in three sizes (160mm, 180mm, and 203mm), this stainless steel disc rotor delivers consistent, confident braking across all trail conditions — from dry summer singletrack to muddy autumn descents. Compatible with Shimano Alivio/Deore hydraulic disc brake systems, it's a straightforward upgrade for any MTB rider.
Made in Mainland China.
Style 1: G3 Rotor
- Material: Stainless Steel
- Available Sizes: 160mm, 180mm, 203mm
- Opposite Hole Distance: 44mm
- Thickness: 1.9mm
- Colors: Silver / Black / Red
- Compatibility: Shimano Alivio / Deore Disc Brake Systems
- Package Includes: 1 × Brake Rotor + 6 × Mounting Bolts (free gift)
Style 2: HS1 Rotor
- Material: Stainless Steel
- Available Sizes: 160mm, 180mm
- Opposite Hole Distance: 44mm
- Thickness: 1.9mm
- Package Includes: 1 × Bike Brake Rotor + 6 × Bolts
Key Features
- ✔ Stable, consistent braking performance — even during extended descents
- ✔ Excellent heat dissipation — engineered to manage thermal build-up during hard braking
- ✔ All-weather adaptability — performs reliably in humid, wet, and muddy conditions
- ✔ Easy installation — mounts directly onto any disc-brake-ready frame and fork
- ✔ Lightweight stainless steel construction — strong yet corrosion-resistant
- ✔ G3 cutout pattern — reduces rotor weight while improving mud clearance
Specifications at a Glance
| Spec | Detail |
|---|---|
| Material | Stainless Steel |
| Sizes | 160mm / 180mm / 203mm |
| Thickness | 1.9mm |
| Bolt Circle | 44mm (6-bolt) |
| Braking System | Hydraulic Disc Brake |
| Compatibility | Shimano Alivio / Deore |
| Origin | Mainland China |
Note: Please allow 1–5mm tolerance due to manual measurement.
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Frequently Asked Questions
Q: What bike brake systems are compatible with this MTB disc rotor?
A: This G3 brake rotor is compatible with Shimano Alivio and Shimano Deore hydraulic disc brake systems. Its standard 6-bolt, 44mm bolt-circle pattern makes it suitable for most disc-brake-ready mountain bike frames and forks.
Q: What sizes does this hydraulic brake disc rotor come in?
A: The G3 style rotor is available in 160mm, 180mm, and 203mm. The HS1 style is available in 160mm and 180mm. Choose the size that matches your existing brake caliper setup or your riding terrain — larger rotors (180mm/203mm) provide more stopping force on technical or steep descents.
Q: Are mounting bolts included with the brake rotor?
A: Yes! Each rotor ships with 6 mounting bolts included at no extra charge, so you can install it right away without purchasing additional hardware.
Q: Is this rotor suitable for all-weather mountain biking?
A: Absolutely. The stainless steel construction and G3 cutout design are engineered to perform consistently in wet, muddy, and humid trail conditions, making this rotor a reliable choice for year-round riding.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.