LTWOO GRT / GR9 Disc 1x12s / 1x11s Road Hydraulic Disc Brake Gravel Groupset, 5 kit, Benchmark GRX
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Specifications
- Brand Name
- LTWOO
- Origin
- Mainland China
- High-concerned chemical
- None
- Type
- Groupset
- Components
- Derailleurs
- Gears
- 12 Speed
- Model Number
- GRT Disc
- Total Capacity
- 46T 50T 52T
- Derailleur Groupset Type
- Mechanical Derailleur system
- Material
- Alloy
- Choice
- yes
Product Description
Technical Features:
LTWOO 2022 Newest GRT12-Disc
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
Egg Roll brake pads, based on the Venturi effect, the air vortex can quickly remove heat, the heat dissipation area is 300% higher than competing products, ultra-high heat dissipation efficiency, effective resistance to heat attenuation, and the weight is only 13g
Ceramic pistons are used to keep high temperatures out of the calipers.
Groupsets include:
GRT12-Disc Shifter R x 1 / L x 1 Aluminum alloy
GRT12 Calipers x2
Brake Hose 700mm x 1 1700mm x 1
Clamp adapter Front 140/160 x1 Front 160/180 x1 with screw, Rear 140/160 x1 Rear 160/180 x1 with screw
GRT12 Rear Derailleur x1 Aluminum alloy
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Technical Features:
LTWOO 2022 Newest GR9-Disc
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
Egg Roll brake pads, based on the Venturi effect, the air vortex can quickly remove heat, the heat dissipation area is 300% higher than competing products, ultra-high heat dissipation efficiency, effective resistance to heat attenuation, and the weight is only 13g
Ceramic pistons are used to keep high temperatures out of the calipers.
Groupsets include:
GR9-Disc Shifter R x 1 / L x 1 Aluminum alloy
GR9 Calipers x2
Brake Hose 700mm x 1 1700mm x 1
Clamp adapter Front 140/160 x1 Front 160/180 x1 with screw, Rear 140/160 x1 Rear 160/180 x1 with screw
GR9 Rear Derailleur x1 Aluminum alloy
GRT:
GR9:
Pros & Cons
Pros
- Affordable aluminum alloy version of high-end GRX benchmark groupset.
- Ergonomic silicone grip shifter for comfortable road/gravel riding.
- Modular design with hydraulic disc brake compatibility, 12/11 speeds.
- Lightweight alloy construction with 46T-52T capacity options.
Cons
- Mechanical derailleur system, not electronic for precision shifting.
- Aluminum version only in this listing, no carbon option.
- Uses mineral oil, requiring specific maintenance.
- Chinese origin may have compatibility variances with premium brands.
Common Questions
What material is the LTWOO GRT Disc groupset made from?
Primarily alloy material for lightweight durability in the derailleurs and components.
What gear speeds and capacities are available?
1x12s or 1x11s speeds with total capacity options of 46T, 50T, 52T; compatible with road hydraulic disc brake gravel setups.
Is it compatible with Shimano GRX benchmark systems?
Yes, designed as a benchmark to GRX with mechanical derailleur system, modular for road/gravel bikes.
How does the shifter grip feel during use?
Ergonomically designed grip with special silicone rubber sleeve using mineral oil for comfortable, precise shifting.
What is the shipping detail for this LTWOO groupset?
Ships from Mainland China; expect 10-20 days delivery with secure packaging for the 5-kit components.
Product information last updated on March 24, 2026