LTWOO eR9 + ZRACE 11/12 speed Full Electronic Road Groupset

Groupset Components & Specifications

Click here to compare to Shimano Di2

eR9 Electronic Shifters (Hydraulic Brakes)

• Speed Compatibility: 2x10-12 Speed
• Brake Lever Length: 140mm
• Adjustable Range: 8mm
• Battery Type: CR2032
• Brake Lever Material: Aluminum Alloy
• Braking System: Hydraulic Disc
• Weight: 245g (Left), 245g (Right)
• Color: Flash Grey + Laser Tag

eR9 Rear Derailleur (Electronic)

• Speed Compatibility: 10-12 Speed
• Material: Aluminum Alloy
• Cage Type: Long Cage
• Max Gear Range: 11T-32T
• Total Gear Range: 21T
• Weight: 285g
• Features: "L-Lock" Cage Fixed System, Stabilize Damping System for chain stability

eR9 Front Derailleur (Electronic)

• Speed Compatibility: 2-Speed
• Max Gear Range: 56T
• Chainline Compatibility: 43.5mm - 44.5mm
• Total Gear Range: 16T
• Weight: 135g
• Features: Lightweight aluminum construction for smooth shifting

eR9 Hydraulic Disc Brake System

• Brake Fluid: Mineral Oil
• Caliper Mounting Type: Flat-Mount (not compatible with Post-Mount)
• Brake Disc Compatibility: 140mm / 160mm
• Weight: 128g per caliper (including brake pads)
• Features: "Serial Channel" bleeding system for easy maintenance, "Egg Roll" cooling system for heat dissipation

ZRACE RX Road Crankset

• Material: 6061 Aluminum Alloy Crank Arms + 7075 Aluminum Chainrings
• Q-Factor: 148mm
• Bolt Circle Diameter (BCD): 110mm
• Bottom Bracket Compatibility: BSA, BB86/92, PF30, BB30
• Weight: 525g
• Features: 3-Hole Hollowtech and CNC-machined components for strength and efficiency

ZRACE ALPHA EX Superlight Cassette

• Speed Compatibility: 11-Speed / 12-Speed
• Material: Molybdenum Steel + 7075 Aluminum Alloy
• Freehub Compatibility: HG

12-Speed Cassette Options

• 11-28T: 133g
• 11-30T: 142g
• 11-32T: 144g

11-Speed Cassette Options

• 11-28T: 126g
• 11-30T: 134g
• 11-32T: 136g

ZRACE Chain

• Speed Compatibility: 11-Speed / 12-Speed
• Weight:
  • 11-Speed (120L): 266g
  • 12-Speed (126L): 271g
• Color Options: Rainbow, Silver, Black, Gold
• Features: Low-friction coating for smooth shifting

ZRACE RT-RX Disc Brake Rotors

• Material: Aluminum Bracket + Stainless Steel Disc
• Size Options: 140mm / 160mm
• Weight:
  • 140mm (Center Lock): 101g
  • 160mm (Center Lock): 111g
  • 160mm (6-Bolt Mount): 126g
• Features: Optimized heat dissipation

Wireless Electronic Battery System (Rechargeable Li-ion)

• Voltage: 7.4V
• Capacity: 800mAh
• Charging Voltage: 8.4V
• Includes: Cables and connectors for installation
• Features: Long battery life, fast charging

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What’s Included in the Full Groupset

• 2x eR9 Electronic Shifters (Hydraulic Brakes)
• 1x eR9 Wireless Rear Derailleur
• 1x eR9 Wireless Front Derailleur
• 2x eR9 Hydraulic Disc Brake Calipers
• 2x ZRACE RT-RX Brake Rotors (140mm/160mm options)
• 1x ZRACE RX Road Crankset (525g)
• 1x ZRACE ALPHA EX Superlight Cassette (Choice of 11-28T to 11-36T)
• 1x Bottom Bracket (BSA, BB86, PF30, BB30 compatibility)
• 1x ZRACE Chain (11 or 12 Speed)
• 1x Rechargeable Li-ion Battery + Charging Cable
• 1x Full Cable Set & Connectors