LTWOO eR7 Electronic Road Groupset

Overview & Key Features
The LTWOO eR7 is an entry-level electronic road groupset designed for riders seeking electronic precision and clean shifting performance without the premium price tag. Built for modern endurance and all-road cycling, the eR7 system combines a 2x10-12-speed drivetrain with hydraulic disc braking, electric derailleurs, and a Li-ion power system. It delivers reliable performance and intuitive operation while remaining easy to install and maintain.

Key Features:

• 2x10-12-speed electronic shifting
• Direct-mount electronic derailleurs
• Integrated hydraulic disc braking
• Optimized for endurance road and light gravel setups
• Compact Li-ion battery with high efficiency

Shifters & Brake Levers

• Speed Compatibility: 2x10–12-speed
• Lever Material: Aluminum
• Braking Mode: Hydraulic
• Weight: 260g (Left) / 260g (Right)
• Wireless shifting for clean cockpit setup

Front Derailleur:

• Speed: 2-speed
• Mount: Direct
• Operation: Electric
• Max Gear Range: 54T
• Capacity: 16T
• Chainline: 43.5–44.5mm
• Weight: 138g

Rear Derailleur:

• Speed: 10–12-speed
• Cage Length: Medium (93mm)
• Max Gear Range: 11–32T
• Main Material: Aluminum
• Cage Material: Aluminum
• Weight: 292g

Braking System

• Type: Hydraulic Disc
• Caliper: BR-R7020-F
• Main Material: Aluminum
• Pads: Egg roll cooling brake pads for heat dissipation
• Weight: 128g per caliper

Why Choose This Groupset?
The LTWOO eR7 brings the benefits of electronic shifting and hydraulic braking to budget-conscious riders without compromising performance. With simple setup, direct-mount electric derailleurs, and responsive brake modulation, the eR7 is ideal for riders upgrading from mechanical setups or starting out with modern road bikes.

What’s Included in the Box?

• Left & Right Electronic Shift-Brake Levers (Hydraulic)
• Front Electronic Derailleur (Direct Mount)
• Rear Electronic Derailleur (Medium Cage)
• 2x Hydraulic Disc Calipers with pads
• Li-ion Battery (7.4V, 800mAh, 5.92Wh)
• Battery charging cable

Upgrade to smooth electronic shifting today—order your LTWOO eR7 groupset now and transform your ride with precise performance at a breakthrough price.