LTWOO GRT 12 Speed Mechanical Gravel Groupset

The LTWOO GRT 12-speed groupset is engineered for gravel performance and long-distance adventure. Built with a single-chainring 1x12-speed setup, this groupset delivers precise shifting, superior chain retention, and powerful braking. Choose between lightweight carbon (GR7020) or durable aluminum (GR7010) versions—both built to handle rugged terrain and variable conditions with confidence.

Key Features:

• 1x12-speed gravel-optimized drivetrain
• Carbon or aluminum shift-brake levers and derailleur options
• Hydraulic disc braking with egg roll cooling pads
• Rear derailleur with chain stabilizer
• Wide-range cassette compatibility up to 50T
• Long cage for multi-surface capability

Shifters & Brake Levers

Carbon Variant – ST-GR7020-L

• Speed: 1x12-speed
• Brakes Lever Material: Carbon
• Braking Mode: Hydraulic
• Weight: 180g (Left) / 255g (Right)

Aluminum Variant – ST-GR7010-L

• Speed: 1x12-speed
• Brakes Lever Material: Aluminum
• Braking Mode: Hydraulic
• Weight: 200g (Left) / 275g (Right)

Rear Derailleur

Carbon Cage – RD-GR7020

• Speed: 12-speed
• Main Material: Aluminum
• Cage Material: Carbon (Outer Cage)
• Cage Length: Long (83mm)
• Max Gear Range: 11T–50T
• Damping System: Yes (Stabilizer)
• Weight: 268g

Aluminum Cage – RD-GR7010

• Speed: 12-speed
• Main Material: Aluminum
• Cage Material: Aluminum
• Cage Length: Long (83mm)
• Max Gear Range: 11T–50T
• Damping System: Yes (Stabilizer)
• Weight: 285g

Braking System

BR-R7020-F Calipers (Shared on Both Versions)

• Brake Type: Hydraulic Disc
• Main Material: Aluminum
• Pads: Egg Roll Cooling Brake Pads (optimized for heat management)
• Weight: 128g per caliper

Why Choose This Groupset?
The LTWOO GRT groupset is built for serious gravel riders who need precision, power, and versatility. With 1x simplicity, damping chain stability, and hydraulic control, it delivers performance across rough terrain, steep climbs, and fast descents. Choose carbon for lightweight performance or aluminum for added value and durability.

What’s Included in the Box?

• 1x Left & Right Hydraulic Shift-Brake Levers (ST-GR7020 or ST-GR7010)
• 1x Rear Derailleur (RD-GR7020 or RD-GR7010 – Long Cage)
• 2x BR-R7020-F Hydraulic Disc Calipers
• Pre-installed brake hoses and shift cables

Take your gravel rides further—upgrade to the LTWOO GRT 12-speed groupset and conquer any route with carbon or alloy precision.