INCREDIBLE 1x12 gravel performance on a budget - L-TWOO GRT @TraceVelo
INCREDIBLE 1x12 gravel performance on a budget - L-TWOO GRT  @TraceVelo
Uploaded February 2023 | Updated September 2026, 2 weeks ago
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):
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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: 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!!!
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INCREDIBLE 1x12 gravel performance on a budget - L-TWOO GRT

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