This hydraulic road/gravel groupset offers exceptional value with carbon components and Shimano compatibility, though some quality control issues have been noted.
Pros
- Fully hydraulic road groupset from a Chinese manufacturer
- 2x12 speed with carbon parts including brake levers, shift paddles, and rear derailleur cage
- Follows Shimano standard for hydraulic fittings
- Affordable price point (approximately ยฃ130-ยฃ358)
Cons
- Left shifter for front derailleur was initially stiff (though adjustable)
- Front brake hose had kink from factory (possible quality control issue)
- Use of anti-seize compound on bolts not recommended by manufacturer
- Brake calipers use two-piece bolted-together design rather than one-piece
Key Facts
- Carbon fiber components in brake levers, shift paddles, and rear derailleur cage
- Shimano-compatible hydraulic fittings
- Flat Mount calipers with 70 mm bolt spacing
Reviews & Ratings
The reviewer states that the Ltwoo GR9 groupset inspired the entire project and provides a detailed initial assessment. They are impressed with the finish quality of the shifters and hoods, note the rear derailleur has a strong clutch and large cage for gravel use, and praise the brake calipers' appearance and value.
AI Summary
Pros
- Impressive finish quality of the shifters and hood rubbers
- Rear derailleur has a strong clutch and large cage suitable for gravel and large cassettes
- Brake calipers look incredible quality for the price and feature cooling fins on the pads
- Hoses come pre-attached with a loop for gear cable routing
- Includes brake olives, mounting hardware, and adapters
- Extremely cheap price point, compared to lower than Shimano Claris
Cons
- Brake calipers are a two-piece bolted-together design, not a one-piece design
The reviewer discusses the Ltwoo Rx Grt R9 Gr9 Road Bike Hydraulic Disc Brake 11/12s Shifter Carbon Fiber Groupset Hydraulic Caliper Rear Derailleur Set, highlighting its features and initial impressions during installation.
AI Summary
Pros
- Fully hydraulic road groupset, a first from a Chinese manufacturer
- 2x12 speed with carbon parts including brake levers, shift paddles, and part of the rear derailleur cage
- Follows Shimano standard for hydraulic fittings
- Includes shifters, front and rear derailleurs, brake calipers, and mounting brackets
- Affordable at ยฃ358 from AliExpress
- Available in 2x11 and gravel-specific 1x12 versions
- Initial setup was straightforward and simple
Cons
- Left shifter for the front derailleur was initially stiff, though adjustable
- Front brake hose had a kink from the factory, possibly a quality control issue
- Use of anti-seize compound on bolts is not recommended by the manufacturer
Where to Buy
LTWOO RX BRT R9 GR9 Rennrad Hydraulische Scheiben Bremse 11/12s Shifter Carbon Faser Groupset Hydraulische Sattel hinten Derilleur Set - AliExpress 18
Specifications
Attributes
Included Components
Questions about Ltwoo Rx Grt R9 Gr9 Road Bike Hydraulic Disc Brake 11/12s Shifter Carbon Fiber Groupset Hydraulic Caliper Rear Derilleur Set - Bicycle Derailleur
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