Chinese Carbon Road Bikes > Road Bike Frames, Wheels & Components

L-TWOO R9 2x11 hydraulic questions.

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TidyDinosaur:

--- Quote from: Serge_K on May 09, 2024, 08:12:06 AM ---given the state of the 2nd hand bike market, if you can, get Shimano and not Sensah. I've had mixed experience with Sensah 2x11 carbon. Shimano just works, vs Sensah is largely untested, and if you have warranty issues, you find yourself without a bike for 6 weeks if you're lucky, to deal with back and forth, explanations, shipping and so on. Although, in my experience, Sensah just tells you to eat a d1ck and doesn't honor any kind of warranty anyway, so that simplifies things.

--- End quote ---
Yes, just get second hand ultegra. It just works.

jonathanf2:
The current batch of Sensah shifters have all the kinks ironed out. I'd go Sensah over LTwoo mechanical any day just so I wouldn't have to fiddle with that dumb Ltwoo thumb shifter.

Saying that, 11 speed Ultegra mechanical is the way to go or pick up 12 speed 105 R7100 hydraulics. They seem to be priced similar.

I'm starting to appreciate 12 speed and the better gear spread you get as you size up on the cassette.

ujmo_:
Hi, I'm currently building a new bike with this groupset and I have two questions.

* The front derailleur seems to have 4 speeds instead of 2(I'm new to bikes so please let me know if I'm just stupid and this is normal) - i.e. it clicks 3 times when shifting up and 3 times when shifting down and I'm not sure if I did something wrong with the setup. Shouldn't it be just 1 click down and 1 click up?
* When I try to shift front derailleur to the big chainring, the chain get's stuck in between derailleur cage and chainring - see the pictures in attachment(not sure if it's clearly visible). I haven't lube the chain yet - can that cause it or something else is wrong?

frnchy:

--- Quote from: ujmo_ on May 25, 2024, 10:59:52 AM ---Hi, I'm currently building a new bike with this groupset and I have two questions.

* The front derailleur seems to have 4 speeds instead of 2(I'm new to bikes so please let me know if I'm just stupid and this is normal) - i.e. it clicks 3 times when shifting up and 3 times when shifting down and I'm not sure if I did something wrong with the setup. Shouldn't it be just 1 click down and 1 click up?
* When I try to shift front derailleur to the big chainring, the chain get's stuck in between derailleur cage and chainring - see the pictures in attachment(not sure if it's clearly visible). I haven't lube the chain yet - can that cause it or something else is wrong?
--- End quote ---


* Those are trim positions to prevent chain rub on the front derailleur when in crosschained gear combos. See https://www.youtube. com/watch?v=CR8jyNgoS0U for a good little visualization (remove the space in the URL - youtube links are really weird on this forum.)
* The chain getting stuck between the front derailleur and the chainring is how shifts happen - the chain is forced into the big chainring which picks it up and deposits it onto the teeth. Of course, this only happens when pedaling - nothing will happen if the crank isn't rotating.

ujmo_:

--- Quote from: frnchy on May 25, 2024, 02:12:23 PM ---
* Those are trim positions to prevent chain rub on the front derailleur when in crosschained gear combos. See https://www.youtube. com/watch?v=CR8jyNgoS0U for a good little visualization (remove the space in the URL - youtube links are really weird on this forum.)
* The chain getting stuck between the front derailleur and the chainring is how shifts happen - the chain is forced into the big chainring which picks it up and deposits it onto the teeth. Of course, this only happens when pedaling - nothing will happen if the crank isn't rotating.
--- End quote ---
The thing is that when I try to shift up(while pedaling) the chain gets pinched and it blocks the movement of the pedals.

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