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LTWOO GRT 12 Disc 1x12s Gravel Hydraulic Disc Brake Groupset + ZRACE XG Flat Mount Brake Caliper, Carbon Fibre, Benchmark GRX

LTWOO GRT 12 Disc 1x12s Gravel Hydraulic Disc Brake Groupset + ZRACE XG Flat Mount Brake Caliper, Carbon Fibre, Benchmark GRX

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Specifications

Brand Name
LTWOO
Origin
Mainland China
High-concerned chemical
None
Type
Other
Components
Derailleurs
Gears
12 Speed
Model Number
GRT 12 Disc
Total Capacity
46T 50T 52T
Derailleur Groupset Type
Mechanical Derailleur system
Material
Alloy

Product Description

Notice
In order to avoid SHIMANO's patent, LTWOO's Hydraulic Disc Brake Caliper uses a 70mm spacing mounting seat, and then installs it through an adapter, so that not only the Caliper is heavy, but the adapter is also very heavy, and the most important thing is that for some frames It is still not compatible, so we replaced the Flat Mount Caliper of ZRACE XG, so that the whole set can reduce weight 120g! and can be compatible with all flat mount frames and Forks.

And it can be installed on the frame of Post Mount and IS Mount through ZRACE's Flat to Post / IS Adapter.


Technical Features:
LTWOO 2022 Newest GRT12-Disc
The shifter adopts Continuous Release release technology, which can instantly enter 4 gears and reverse 3 gears
The grip is ergonomically designed, and the rubber sleeve is made of special silicone material, which is more comfortable to the touch (use mineral oil)
The overall modular design is adopted, and any damaged parts can be replaced at low cost


Groupsets include:
GRT12-Disc Shifter R x 1 / L x 1 carbon fibre
ZRACE XG Calipers x2

Brake Hose 700mm x 1 1700mm x 1

Clamp adapter Front 140/160 x1 with screw, Rear 160 x1 with screw


GRT12 Rear Derailleur x1 carbon fibre







Product information last updated on December 27, 2025