LTWOO RX Rim Brake 2x12 Speed 24S Carbon Fiber Road Bike Groupset, ZRACE R700 Rim Brake Calipers 11-30 11-34 Cassette, 12S Chain

RX 2x12 Speed Carbon Fiber Rim Brake Road Groupset

Package Components

LTWOO RX Right Shifter ×1 (Shifting cable included)

LTWOO RX Left Shifter ×1 (Shifting cable included)

LTWOO RX Rear Derailleur ×1

LTWOO RX Front Derailleur x1

ZRACE 12 Speed Cassette ×1

ZRACE Rim brake caliper x2

(Front & Rear, Brake pads included)

ZRACE 12 Speed Chain ×1

(126L, manufactured by SUMC & DYC)

Options

Cassette Options (11-Speed):

11-30T / 11-32T / 11-34T

Freehub Compatibility Note:

The cassette is natively compatible with standard HG freehubs. If you require XDR or Micro Spline (MS) freehub specifications, please contact our customer service team in advance.

Brake pads:

Options available for both alloy and carbon wheelsets.

Shift Lever (Carbon)

Type：Mechanical Shifting & Rim Brake

Material: Carbon Fiber brake lever.

Operation: Dual Shifting levers.

Cables: Shifting cables included.

Weight: ~240g / piece.

Rear Derailleur（Carbon）

Three-spring design delivers balanced cassette engagement, greater adjustability tolerance and simpler setup.

Speed: 12 Speed

Compatible Sprocket: Minimum 11T / Maximum 34T

Pulley Wheels: The Tension Pulley features positive and negative teeth to ensure smooth shifting and prevent chain drop.

Cage Material: Carbon fiber outer cage paired with aluminum inner cage for optimized weight savings and durability.

Weight: ~226g

Front Derailleur

Type: Direct Mount

Max Tooth: 56T.

Total Capacity: 16T.

Chainstay Angle: 61-66°.

Chain Line: 43.5-44.5mm.

Clamp Size: 31.8mm / 34.9mm.

Weight：~102g

Rim Brake Calipers

Brand: ZRACE

Model: R700

Material: Aluminum Alloy

Compatibility: Road Bike / Folding Bike

Rim Compatibility: Metal / Alloy Rims

Brake Pad Length: 55mm

Weight: ~364g

Cassette

Speed: 12 Speed.

Material: High-strength steel.

Compatibility: Fits HG freehub standard.

Options & Weight:

11-30T (approx 312g)

11-32T (approx 341g)

11-34T (approx 350g)

Chain

Speed: 12 Speed (compatible with SHIMANO, SRAM, LTWOO).

Links: 126L.

Material: High-strength alloy steel (Nickel-plated anti-rust).

Connector: Includes reusable Quick-Link / Master-Link.