LTWOO ER9 & ERX - Electronic groepsets

[Tpower59]

I just found this on AliExpress:
€4.34 | LTWOO Bicycle Hydraulic Disc Brake Oil Needle Olive Head Connect Inserts R7/R9/RX/GR7/GR9/GRT Brake Oil Hose Accessories
https://a.aliexpress.com/_EJb3SJi
I bought this as I had given up on the o ring. The picture is what came. It is the new style needle with the o ring.  You can see in people's reviews the same item.

I think a lot of stores have the new one, but haven't updated the picture. I'm fairly sure I saw on the official ltwoo Ali page that they are shipping the new type, but the pictures of the product were old.
If you are very stuck, Panda podium said they could get ltwoo to ship me a full set, 3m of hose, four olives and four barbs for 25 us dollars. It's a bit expensive compared to Ali. I live in Ireland

Bought this too
Unscrewd the screw where the hose hose is inserted in the rear brake but cannot remove it from the brake : do you know if I had to pull it with something ?

[Lordfauntleroy]

Bought this too
Unscrewd the screw where the hose hose is inserted in the rear brake but cannot remove it from the brake : do you know if I had to pull it with something ?

I've never had to actually do it. I'm half way through a lightcarbon build, but waiting on a replacement fork from them.
As far as I know the olive is just crushed by the screw you've undone. It's possible the olive is just crushed a bit into the housing and is a bit tight, , but there's nothing actually holding it there. It should just pull out. That and the friction of the o ring on the barb.
Others feel free to correct me, but undo the nut all the way so it's able to come free totally and slide along the hose, then pull it out.

[hsaus]

Any performance feedback with the OSPW and use with bigger cassettes? Doesn't it expand the ER7/9/X to do 34t max cog in-spec? I'm thinking about getting it, but I'm not too interested if there's no performance gains to be had. Also can someone post pictures with big/big and small/small? I just want to see how the chain looks. Thanks!

It improved my drivetrain efficiency by 0.03957231 W

j/k

Out of the box ... err ... bag, the pulley wheels offered up the party trick of spinning forever. On bearings that felt bone dry So I added some grease to cancel out that benefit.

The OSPW cage improves the RDs ability to take up chain slack, compared to the stock cage. But the offset of the top pulley wheel is the same. Here are photos of small/small and big/big. The cassette is 11-34T, and the chainrings are 52/36T. I have about 3.5mm of the stock B screw still to go, to push to larger cassettes.

[Lordfauntleroy]

Bought this too
Unscrewd the screw where the hose hose is inserted in the rear brake but cannot remove it from the brake : do you know if I had to pull it with something ?

I've never had to actually do it. I'm half way through a lightcarbon build, but waiting on a replacement fork from them.
As far as I know the olive is just crushed by the screw you've undone. It's possible the olive is just crushed a bit into the housing and is a bit tight, , but there's nothing actually holding it there. It should just pull out. That and the friction of the o ring on the barb.
Others feel free to correct me, but undo the nut all the way so it's able to come free totally and slide along the hose, then pull it out.

[Tpower59]

I've never had to actually do it. I'm half way through a lightcarbon build, but waiting on a replacement fork from them.
As far as I know the olive is just crushed by the screw you've undone. It's possible the olive is just crushed a bit into the housing and is a bit tight, , but there's nothing actually holding it there. It should just pull out. That and the friction of the o ring on the barb.
Others feel free to correct me, but undo the nut all the way so it's able to come free totally and slide along the hose, then pull it out.

Thanks, buddy, I'll try gently this time. Last time I forced it, I had to buy a new lever 

[mashiro2004]

I saw this video where Trace Velo uses an ERX v1 front derailleur with everything else being ERX v3, because the motor stopped working, but the electronics work. He says the v1 works perfectly with the other v3 components.
The problem is how to charge the battery, and he does this:

use the FD v3 by disconnecting the cable from the v1 and connecting it to the v3, and when the battery is charged it does the opposite.
I would probably use the rear derailleur cable which would be more convenient.

Here's the link to the video:

I just found this on AliExpress:
€4.34 | LTWOO Bicycle Hydraulic Disc Brake Oil Needle Olive Head Connect Inserts R7/R9/RX/GR7/GR9/GRT Brake Oil Hose Accessories
https://a.aliexpress.com/_EJb3SJi
I bought this as I had given up on the o ring. The picture is what came. It is the new style needle with the o ring.  You can see in people's reviews the same item.

I think a lot of stores have the new one, but haven't updated the picture. I'm fairly sure I saw on the official ltwoo Ali page that they are shipping the new type, but the pictures of the product were old.
If you are very stuck, Panda podium said they could get ltwoo to ship me a full set, 3m of hose, four olives and four barbs for 25 us dollars. It's a bit expensive compared to Ali. I live in Ireland

Good, thanks for the info. In the meantime, I wrote to the seller, and he changed the listing to now ship to Italy.
It's always best to have two or three sellers you can rely on.
Now I'm also hoping to find a seller who sells individual spare parts for V3 groupsets.

[Ohmanndill]

Hi guys have you used the eRX/eR9 in really poor winter conditions i.e. very wet/snow and cold well under 0°C ?
Few parts of my 105 mechanical on my commuter needs replacing and I was wondering if it wasn't the right time to switch to ltwoo and have a try to electronic groupset. Bit I'm kind of scared it wouldn't stand the very harsh conditions I'm facing at wintertime (I live up in mountains)

[Udeson]

Hey fellows,

Read through the thread but still confused on swapping RD pulleys. Can some pls sum up the right setting for me?

- Stock config is upper pulley 11 teeth and lower pulley with narrow/wide 12t teeth.
- In which order I need to replace the pulleys? Stock upper with Shimano lower (with longer teeth, but no wide/narrow) and vice versa, or only the lower stock pulley with 11t Shimano lower pulley?

Thx guys for your help!

[jonathanf2]

Hey fellows,

Read through the thread but still confused on swapping RD pulleys. Can some pls sum up the right setting for me?

- Stock config is upper pulley 11 teeth and lower pulley with narrow/wide 12t teeth.
- In which order I need to replace the pulleys? Stock upper with Shimano lower (with longer teeth, but no wide/narrow) and vice versa, or only the lower stock pulley with 11t Shimano lower pulley?

Thx guys for your help!

Just stick with Shimano's configuration. 11t narrow/wide upper, 11t regular lower.

Run a Shimano chain, cassette, jockey wheels and chainring if you want the closest setup to Shimano-like shifting. 

[Udeson]

Just stick with Shimano's configuration. 11t narrow/wide upper, 11t regular lower.

Run a Shimano chain, cassette, jockey wheels and chainring if you want the closest setup to Shimano-like shifting. 

Do you have Shimano pulleys with narrow/wide teeth? My Ultegra ones do have the normal, non altering teeth width...

[raisinberry777]

Another visual refresh for ER9 (gold trim now) up on the L-Twoo website and all the model numbers have changed. Anyone spot any other changes?

https://www.ltwoo.com/en/seriesItem?typeId=82&series=ER9

[jonathanf2]

Another visual refresh for ER9 (gold trim now) up on the L-Twoo website and all the model numbers have changed. Anyone spot any other changes?

https://www.ltwoo.com/en/seriesItem?typeId=82&series=ER9

All new flat mount brake calipers as well. They come in either 140mm or 160mm and appear to be front and rear specific calipers now.

https://www.ltwoo.com/en/seriesItem?typeId=82&series=ERX

[mozart]

I want to ask anyone who has the v3. When the fd is in the large gear and you press the shifter for trimming, does it return to its previous position? Or do you have to press the button for the small gear to go down and then put the large gear back in. I had this problem with the v1 but with some update you could change the trimming with the same button.

[naiboo]

I'm thinking of buying eR9 / eRX v3. Do you know if it comes with two brake hose?

[mashiro2004]

Mine (was an ER7) arrived with two brake lines, connected to the calipers and already filled with oil. Then came two olives, two barbs, and two nuts to connect everything to the levers.