LTWOO ER9 & ERX - Electronic groepsets

[Sebastian]

Battery level is now accurate within the app. Seems like it needed the first charge/discharge cycle to calibrate itself. Also, the sleep and wake up functionality works fine. Once the bike sits for a while, nothing happens when you click the shifter. But the slightest vibration wakes the RD back up and it shifts. So here's to hoping that the groupset doesn't fall asleep when riding on super smooth roads
Luckily I don't have many of those where I live.

[lantz]

The only quirk I found when setting up my set was that what they call the "7" cog is acutally the "6" cog in the app.

I was calibrating and consistently the shifting was 1 off - lowest cog would stop on second to lowest and highest cog would seemingly push over past the max.

Solved this by just making a manual adjustment and shifting to 6 on the chainring and then calibrating (it says to go to the 7th) and it works swimmingly.

[Dmgreen13]

The only quirk I found when setting up my set was that what they call the "7" cog is acutally the "6" cog in the app.

I was calibrating and consistently the shifting was 1 off - lowest cog would stop on second to lowest and highest cog would seemingly push over past the max.

Solved this by just making a manual adjustment and shifting to 6 on the chainring and then calibrating (it says to go to the 7th) and it works swimmingly.

Was that for 11 or 12 speed?

[lantz]

12

[Dark17]

Does the FD of ER9 has a slight play? I have mine with a slight play lol.

[lantz]

Does the FD of ER9 has a slight play? I have mine with a slight play lol.

Slight play how, like between the FD and the mount on the frame or in the positioning in the chainline?

[Dark17]

Slight play how, like between the FD and the mount on the frame or in the positioning in the chainline?

It's in the positioning of the chainline.

[Dmgreen13]

How much play?

[Dark17]

How much play?

It's like a quarter of a mm of play, tho it shifts pretty nice now but I want to know if other guys are experiencing this so I can report this to LTwoo

[lantz]

It's like a quarter of a mm of play, tho it shifts pretty nice now but I want to know if other guys are experiencing this so I can report this to LTwoo

I haven't seen that in my installation, but I can verify when I go out tomorrow and be a bit more discerning.

[mrpercussive]

It's in the positioning of the chainline.

Mine just got here and no play there

[mrpercussive]

For those interested weights of the er9

https://youtu.be/71En2akvLKA?si=XmAKTLIkfg4C_zO6

[raisinberry777]

For those interested weights of the er9

https://youtu.be/71En2akvLKA?si=XmAKTLIkfg4C_zO6

Comparing to Trace Velo's weight videos for ERX - shifters and front derailleur are exactly the same weight, ER9 rear derailleur is 10g heavier than ERX.

Makes ER9 look like a great deal... when it works.

[mrpercussive]

Comparing to Trace Velo's weight videos for ERX - shifters and front derailleur are exactly the same weight, ER9 rear derailleur is 10g heavier than ERX.

Makes ER9 look like a great deal... when it works.

Yea dude... the claimed weights on aliexpress descriptions were heavier than what they really were. Wondered if they did that because they wouldnt be able to sell the ERX other wise

[Sebastian]

It's like a quarter of a mm of play, tho it shifts pretty nice now but I want to know if other guys are experiencing this so I can report this to LTwoo

I can move the FD cage by that amount if I try. But the motor or some sort of spring tension is acting against it. So there’s not really any play.

I’ve done 100k so far on er9. It works great. I wish there was a bit more tactile feedback from the shift buttons. It’s a bit hard to tell whether or not I actually pushed the button. Apart from that all is good.