LTWOO RX hydro sets

[Lewis_Stewell]

Seems to have been completely missed by the YouTubers (perhaps because no one cares about mechanical any more?) but a mechanical GRT13 groupset was visible in Trace Velo's video from Shanghai Bike Show.

L-Twoo? If so, hopefully it comes with a better RD than the one they send with their 11 and 12-speed stuff.

I finally just up and replaced the RX (12-speed) rear derailleur with 105 and it's a night and day difference. Really weird to have a b-screw that actually does something and springs that aren't made of wet noodles. For anyone on a budget, the 11-speed 105 rear derailleur is $15 less and works perfectly with 12-speed:

[crooked]

L-Twoo? If so, hopefully it comes with a better RD than the one they send with their 11 and 12-speed stuff.

I finally just up and replaced the RX (12-speed) rear derailleur with 105 and it's a night and day difference. Really weird to have a b-screw that actually does something and springs that aren't made of wet noodles. For anyone on a budget, the 11-speed 105 rear derailleur is $15 less and works perfectly with 12-speed:

Did you use the 12-speed 105 derailleur, or the 11-speed 105 derailleur? I understand that both should work (per your message and the video), but I'm curious about your specific data point since I'm also on L-Twoo RX.

[Lewis_Stewell]

Did you use the 12-speed 105 derailleur, or the 11-speed 105 derailleur? I understand that both should work (per your message and the video), but I'm curious about your specific data point since I'm also on L-Twoo RX.

I used the 11-speed 105 derailleur. Goes through all 12 no problem.

[Crash217]

I used the 11-speed 105 derailleur. Goes through all 12 no problem.

Interesting....  Are the Ltwoo brifters compatible with Shimano Brake calipers as well?

[00Garza]

Interesting....  Are the Ltwoo brifters compatible with Shimano Brake calipers as well?

Yes. I'm using Ltwoo GR9 shifters with GRX calipers.

[toggle]

Hey folks,

Could one of the experts take a look at the length of the cable housing for my rear derailleur?

Does it look too long?

I paired L-TWOO R9 shifters with an Ultegra derailleur. Shifting performance is decent, but not perfect. The frame is fully integrated, which I think doesn't help concerning shifting performance due to the bending radius.

Do you think shortening the housing would improve shifting performance?

BR
Sebastian

[pavlo.k]

Hey folks,

Could one of the experts take a look at the length of the cable housing for my rear derailleur?

Does it look too long?

I paired L-TWOO R9 shifters with an Ultegra derailleur. Shifting performance is decent, but not perfect. The frame is fully integrated, which I think doesn't help concerning shifting performance due to the bending radius.

Do you think shortening the housing would improve shifting performance?

BR
Sebastian

is that velobuild 268? I've had ltwoo rx on a 268 with a fully integrated cockpit and it sucked. I was struggling for months trying to get it to shift good enough and ended up swapping the rd for a shimano 105 which is compatible. that improved the shifting quite a bit but still wasn't great. eventually replaced the entire groupset with di2

[toggle]

is that velobuild 268? I've had ltwoo rx on a 268 with a fully integrated cockpit and it sucked. I was struggling for months trying to get it to shift good enough and ended up swapping the rd for a shimano 105 which is compatible. that improved the shifting quite a bit but still wasn't great. eventually replaced the entire groupset with di2

Its a VB 168, fully integrated bar

[pavlo.k]

Its a VB 168, fully integrated bar

my response is valid for 168 as well 

[Lewis_Stewell]

Resurrecting this thread since the the context of the previous replies applies: I'm at the point where I've replaced half of the RX groupset with the 105 equivalent. The rear derailleur was practically unusable (b-screw tension non-existent), the front derailleur fiddly as all get out, and now the front derailleur brifter's catch pawl is failing to hold the shift (you get the clicks and it moves the derailleur, but it won't hold). I've done all the usual flushing and fiddling, and I'm on the verge of just buying a used pair of 105 7100 brifters. I've got 2500 miles on this groupset.

Worth noting: Ltwoo's customer service via their AliExpress store was completely unhelpful, and basically expected me to prove someone told me the groupset had the 2-year warranty. Helpfully, AliExpress doesn't retain old chats, so I had no way to pull up the old conversation where I confirmed this was the case before purchasing. They were all "We're sure we can help solve your problem today! 😀😀😀" and quickly flipped to "we're sorry but unless you can provide proof you have a warranty despite us seeing you bought this less than two years ago we can't help you 🥺👉🏽👈🏽". Oh, and the brakes have always been finicky/prone to sticking pistons. 5 stars! 😛

On the bright side, dealing with such finicky equipment has taught me a ton about bicycle maintenance/tuning, though I'd have much preferred to have just been out riding than at home with my bike on the stand. If I was to do it again, I'd probably just buy a used 105 groupset- it would've been cheaper than buying everything one at a time like I've ended up doing here.