
The new L-TWOO GRT. An incredible value gravel groupset, but is it worth considering over Shimano and SRAM?
SIROKO CLOTHING – 10% off (automatically applied via link below):
https://srko.co/tracevelo
My size and weight:
Height - 6ft 2In (188cm), Weight - 11.5 stone (73kg)
My sizes for Siroko clothing:
Jersey & Jackets – M, Bib shorts – L
In late 2022, a chinese manufacturer called L-TWOO debuted their brand new, and pretty groundbreaking series of hydraulic disc brake groupsets. They offer incredible shifting and braking performance, for a fraction of the price of the big brands like Shimano, SRAM, and Campagnolo. I have been using their RX 2x12 road bike groupset for the last few weeks, and the performance on the road is very impressive.
In this episode I will be installing and testing their new GRT 1x12 gravel groupset on my carbon gravel bike. It looks incredible, and has some very impressive specs, including carbon fibre brake levers, fully hydraulic disc brakes, and a clutch mechanism on the rear derailleur to prevent chain drops.
I go through the whole install from start to finish, give my thoughts on the groupset, discuss the cost and weight, and finally hit some gravel trails to put it through its paces.
Bleeding RX Groupset: https://youtube.com/watch?v=cRrPe0YbDpk&si=EnSIkaIECMiOmarE
Timestamps:
00:00 – Start
01:11 – Intro
02:33 – L-TWOO GRT overview
04:52 – Installation
06:05 – Bottom Bracket issue
08:44 – Giant Conduct brake removal
10:53 – Brake install
12:19 – Shifter install
14:38 – Fitting brake lines
19:30 – L-TWOO GRT - 2 small issues
21:57 – L-TWOO GRT - The good stuff
24:35 – Cranksets snapping!?
26:38 – Bonus crash test
Please note:
I am not a professionally trained bike mechanic. There can be risks associated with using products that are unbranded, untested, or come from sources where the provenance is unknown.
Please talk to a qualified bike mechanic if you are in any doubt.
In essence, be careful, do your research, and cycle safe!!!
Keywords: gravel groupset,aliexpress groupset,cheap groupset,disc brake,1x12 gravel groupset,1x12 gravel bike,LTWOO hydraulic,chinese hydraulic brakes,chinese hydraulic groupset,chinese gravel groupset,Aliexpress gravel bike,L-TWOO GRT,Gravel performance on a budget,gravel bike 2023,gravel bike,gravel bike build,ltwoo hydraulic brakes,ltwoo hydraulic groupset review,ltwoo grt12,aliexpress gravel groupset
Bike part mentions in this video
LTWOO GRT Disc 1x12s Gravel Hydraulic Disc Shifter + ZRACE XG Flat Mount Brake Caliper,Carbon Fibre,Benchmark GRX
Created: April 06, 2023The reviewer discusses the LTWOO GRT Disc 1x12s Gravel Hydraulic Disc Shifter + ZRACE XG Flat Mount Brake Caliper extensively, highlighting its features, performance, and value. They note that the groupset offers fully hydraulic disc braking, a 1x12 gravel-specific configuration, and carbon fiber components. The reviewer praises its shifting performance, braking power, and clutch mechanism, but also mentions some minor issues like rattling in the shifters and lack of brake lever reach adjustment.
AI-Summary
Pros
- Fully hydraulic disc braking
- Excellent value for money
- Good shifting performance
- Carbon fiber components
- Clutch mechanism reduces chain slap
- Lightweight compared to Shimano GRX
- Easy to install and bleed
- Stock brake pads perform well in wet and dry conditions
- Compatible with generic Shimano brake pads
- Can shift multiple gears at once
Cons
- Shifters have a rattling issue
- No brake lever reach adjustment
- Free stroke adjustment grub screw is not captive
- Front brake lever snapped during a crash test
Key Points
- 1x12 gravel-specific configuration
- Carbon fiber rear derailleur cage
- Narrow-wide pulley wheels for better chain grip
- Friction-type clutch mechanism
- Weighs 1087 grams (lighter than Shimano GRX)
- Priced around £330 with shipping
- Comes with high-quality polished and Teflon-coated cables
- Ceramic and copper compound brake pads included
- Can handle up to a 50-tooth cassette

- Aliexpress Rating:
- 0.0 (0 Reviews)
- Last check of link:
- 10 months
Ship-To | Cost |
---|---|
🇺🇸 | $393.00 |
🇩🇪 | €306.45 - €364.15 |