Chinese groupset manufacturer L-Twoo is not new to the game, but the release of the new electronic eRX road groupset is a first from the brand and certainly comes at an affordable price point.
The new road-specific eRX groupset resembles the Shimano 105 Di2 groupset a lot aesthetically, but also in terms of function. The system is semi-wireless, meaning that the shifters are operated with a coin battery, but there is a seat-tube battery that is connected to the front and rear derailleurs with a wire.
Best road bikes 2023 — find your perfect drop bar bike whatever your budget
The rear derailleur is the brains of the system, communicating with the shifters and the front derailleur via Bluetooth. L-Twoo says it only takes 22 milliseconds for the command from the shifter to travel to the rear derailleur, and while it’s hard to envision in practice, we can just take its word on the speed of the system for now.
The front derailleur also has an auto-trim function which should micro-adjust the derailleur cage to avoid rubbing the chain if you’re cross-chaining.
23 of the best road bike upgrades under £50 - get a better bike on a budget
In terms of connectivity, L-Twoo has a mobile app available to fine-tune the shifting and update the firmware of the eRX system.
L-Twoo eRX - shifters and gearing
The levers are carbon fibre for the eRX model, but there will be an eR9 model available later with more affordable alloy levers. There are two buttons on the levers, one for shifting down and the other for up - again, bearing very similar looks to Shimano’s shifters.
At the front, you get a standard compact gear ratio with 50-34 chainrings, and at the back, you’ve got a 12-speed 11-32 cassette.
L-Twoo eRX - pricing and weight
The total weight of the L-Twoo eRX groupset is claimed to be 1,300 grams, which puts it close to Shimano 105 Di2 which weighs about 1,320g. This weight includes the shifters, front and rear derailleurs, battery, cables and brakes.
And the price? The aluminium eR9 model should retail for about 500$, and the eRX should be about 650$ according to L-Twoo. We know that L-Twoo doesn’t currently offer full groupsets, so you need to source the 12-speed cassette and chain from another manufacturer, but there should be no compatibility issues. We're unsure whether a crankset is included in the price, and even though the picture on L-Twoo's website includes brakes, it's unclear whether you will have to purchase the hydraulic brakes separately. If you do, they set you back between 150 - 260$.
Unlike L-Twoo’s other drivetrain products, the new eRX groupset doesn’t show up on the brand’s AliExpress site at the moment, so we can’t confirm if and when they’ll show up there - and we can’t confirm availability quite yet. However, L-Twoo told us, “We currently do not have a partner distributor in the UK, but quite a few UK customers buy directly from us.”
It's hard to put together a complete price for the new eRX, but if we assume that the groupset retails for 650$ (~£530), the difference to the Shimano 105 Di2 groupset that retails for £1,730 is potentially huge, even if you have to add your own crankset, cassette and chain.
Although there is not much to go off yet, you can check L-Twoo's website for more details.
And let us know in the comments what you think of this new groupset!
Add new comment
53 comments
I've often thought, when going downhill at 80 kph, that what I really want is to trust my braking to a company with a misspelt name typical of an Amazon marketplace seller.
You mean with imaginary words like Sram?
SRAM is the initials of each of its four founders. Campagnolo and Shimano are the surnames of their founders. Full Speed Ahead, SunRace, and Fazua are examples of names intended to be evocative of aspects of cycling. I might be wrong, but L-Twoo is the sort of name that gets spit out of the computer program designed to produce non-trademarked and disposable company names. Or maybe it was founded by two people whose romanized names both begin with L, and at least one of them is a fan of owl calls.
Sorry gonna call you out on your inbuilt bias there. Just coz we don't know the origin of the name it doesn't mean it doesn't have meaning to the founders. I don't think you'd make the same assumption about a western product.
And your assumption, that I wouldn't make the same assumption about a western product, is based on what exactly?
Because you are pretty much tying yourself in knots to sneer and look down on the name of a chinese brand because you dont understand its origins.
You've been seen.
Because you are pretty much tying yourself in knots to sneer and look down on the name of a chinese brand because you dont understand its origins.
You've been seen.
I see Secret squirrel is Board again and poking the bear to get a reaction. The naming of the well established brands are correct. SS seems again to have missed the point being made,
are you implying wacism at play here..
Based on one of the above posts - maybe L-Twoo is supposed to convey the hilarity of ripping off another (western) company's IP / R&D spend.
Apparently the name L-Twoo is a westernised phonetic rendering of the Mandarin word for "blueprint". Whether that's short for "We've nicked Shimano's blueprint" is not made clear.
Fair enough. You've changed my mind about the name without calling me a racist for having legitimate concerns about a safety-critical product from a previously unknown brand, which happens to be Chinese. I'd still not personally buy one of these groupsets until I'd seen a bunch of good reviews, and probably not before someone else in my club had used one through an entire winter. Then again, I had the same scepticism about early electronic groupsets from established manufacturers, which was born out by the teething troubles they had. I'd buy one now, but I guess that makes me a luddite if you live in Secret_squirrel's black-and-white world.
I've bought a fair few products direct from China, carbon frames and rims, and the outcome has mainly been very satisfactory.
Whilst China continue to threaten peace with Taiwan and their President is courting Putin.....I'll give supporting the Chinese economy a wide berth.
that'll teach 'em..
because anecdotal evidence is so convincing..
There are certainly lots of the youtuber cyclist channels reviewing LTwoo stuff lately, im sure theyll pick this set up too.
Youd have to say their overall combined take has been, it's cheap, it works, it might be better than you expect, but there are problems with it & bits do break and fall off too easily. Caveat emptor.
Yes. But if I've understood correctly, that $650 may or may not include chain, cassette, crankset and brakes...
I doubt major brands will pick it up, because there is more money to be made with the good brands
Incorrect. There's more money to be made with the cheap new brands. When you buy a bike 80% of buyers don't give a fig what brand of groupset it is.
For example mid/low end Cannondales are all on Microshift these days.
And it's in black & gold? Shut up and take my money!
Interested! Another player in the game = win for consumers.
*Pops off to look at the website... doubts start to creep in.
"RX Series 2*12s HYDRAULIC SHIFTER (Carbon/Aluminium)
Product Introduction:
Continuous Release
Lubricating Pivot
Ice Wings
R series is the road series. - The shadow rear derailleur design is applied to the entire series, so there is no need to doubt its passability.
Let you have the ultimate riding experience and enjoy the feeling of galloping in the wind.
Well, actually, 'enoying the feeling of galloping in the wind' does sound quite nice.. maybe I will consider some L-Twoo groupset gambling goodness..
I often wonder what the Mandarin translation offerings from British brands are like.
To be fair, some of the marketing language used on Shimano's website is equally odd and look at the budget they have.
Pages