LTWOO ER9 & ERX - Electronic groepsets

[GiantRider]

Does the shimano funnel fit the hood bleed port?  If not, what is the best bleed kit made for this er9/x groups?

[zerstorer]

There are ltwoo bleed kits out now.
SG$8.20  62%OFF | LTWOO L-TWOO Hydraulic Brake Bleed Tools
https://a.aliexpress.com/_on2Kqcq

[Serge_K]

Does the shimano funnel fit the hood bleed port?  If not, what is the best bleed kit made for this er9/x groups?

I had to buy the decathlon bleed kit for like 30-40 eur because the one i got from aliexpress (a ztto supposed to be universal) didnnt work: the fitting was too wide to screw into the bleed port on the calipers.
I suggest you get the kit zerstorer just posted from AliX, they must be including the right fitting.
The decathlon kit has metal bits, but i dont think it matters for the occasional mechanic. i'd rather spend 7 eur than 35 on that stuff.

[Avalius]

Yep, at least I'll have an extra RD for spare parts.

Anyway, I swopped out the faulty RD with my other newer ER9 RD just to confirm definitively that it is the RD drawing down the batt and not any other component or the batts themselves.  The new RD with original FD, batts and shifters remained at 88% for 24hrs.  But the faulty RD with brand new and uninstalled FD, batts and shifters (all paired and connected together) dropped from 94% to 84% in 24hrs just sitting on my desk.

80 designer store really has good service, great solution from them

[jonathanf2]

To help make my LTwoo shifters more comfortable, I added extra bar tap strips under the rubber hoods. I'm also going to switch back to gel padded gloves. I tend to prefer minimalists gloves with less padding on my Shimano equipped bikes.

Battery life on my ER9 has been very good. For about every 20 miles I only get about 5% battery drain with constant shifting. I can probably do an imperial/metric century with power to spare. Recharging is also quick. My only issue is that buying a spare charging cable is like $20-27 USD on AliEx (depending on sale pricing). I don't need an extra cable immediately, but I wouldn't mind getting one if I plan on traveling with my bike.

If anyone in the US is interested, I bought my batteries from this Ebay seller:
https://www.ebay.com/itm/155465836365

[TidyDinosaur]

My only issue is that buying a spare charging cable is like $20-27 USD on AliEx (depending on sale pricing). I don't need an extra cable immediately, but I wouldn't mind getting one if I plan on traveling with my bike.

Maybe you can build one yourself? I found these, maybe they fit?
https://www.aliexpress.com/item/1005002198730186.html

[jonathanf2]

Maybe you can build one yourself? I found these, maybe they fit?
https://www.aliexpress.com/item/1005002198730186.html

The # C cable in that link looks like it could be the same one supplied with the ER9/X? Can anyone confirm? That would be a much cheaper alternative and great to have for travel or just to carry in the saddle for emergencies.

[TidyDinosaur]

It won't work with a normal usb charger. The batteries are 7.2V. That's why the usb plug of the charging cable is so big. It will probably increase the 5v output of a normal charger
But if this connector fits, you could theoretically solder it to a charger with the correct output.

[jonathanf2]

Yesterday I took the ER9 bike out with extra padded shifters and using gel padded gloves. Adding bar tape strips on the inner top part of the shifters helped on comfort and probably using the gel padded gloves as well. Though it's still not as comfortable as bigger Shimano hoods, but at least I didn't get any hand numbing. Also I needed to do some more gear fine tuning specifically in the small/big and big/small combination. I was having slight shift issues shifting up and down the three biggest cogs while on the small chainring. Its most noticeable on climbs constantly shifting while adjusting for elevation and cadence. I'm hoping I have it dialed in now, if not I'll have to do the gear fine tune while riding.

Other than that, the ER9 has been running great. If I was building a new bike now, I wouldn't hesitate using Chinese electronic groupsets. My old semi-internal TFSA frame definitely feels like a new bike with all the component upgrades!

[atlet]

Any link to order 14500 batteries for ER9 from EU?

[TidyDinosaur]

Any link to order 14500 batteries for ER9 from EU?

nkon.nl

[atlet]

nkon.nl

Ordered already 2 different types of batteries and nobody fit.

This are to big: https://eu.nkon.nl/rechargeable/li-ion/14500-16340/keeppower-14500-800mah.html
This don't touch the contact (they don't have button top): https://eu.nkon.nl/rechargeable/li-ion/14500-16340/sanyo-ur14500ac.html

Now I ordered this (hope will be ok): https://eu.nkon.nl/rechargeable/li-ion/14500-16340/xtar-14500-800mah-protected-1a.html

What are the right one?

[SirBikealot]

Ordered already 2 different types of batteries and nobody fit.

This are to big: https://eu.nkon.nl/rechargeable/li-ion/14500-16340/keeppower-14500-800mah.html
This don't touch the contact (they don't have button top): https://eu.nkon.nl/rechargeable/li-ion/14500-16340/sanyo-ur14500ac.html

Now I ordered this (hope will be ok): https://eu.nkon.nl/rechargeable/li-ion/14500-16340/xtar-14500-800mah-protected-1a.html

What are the right one?

the last one should fit well. The first one are protected ones that are way too high.

i got myself a set of this one, which fit perfect and can be recharged in case i left my ltwoo charger at home.
https://www.akkuteile.de/en/lithium-ionen-battery/size-14500/keeppower/keeppower-14500-1100mah-li-ion-3-7v-3-6v-with-usb-charging-facility-and-pcb-p1411u_12087_2926

[Koekembak]

So rear derailer stopped working, it’s my girlfriends and I’m not sure if she did something or not but it doesn’t work anymore.

It makes a sound when I shift but won’t shift, right before it was shifting from1-5th gear, (1st being biggest sprocket) and then I was messing with it it got stuck in 1 and won’t shift anymore, just a bit of clicking sound.

Does anybody had this happen before.

https://m.youtube.com/shorts/Ufatm9ERIA0

Sounds like I am getting my money back, but I want a rear derailleur

[Serge_K]

In the last few days, the er9 RD of a friend died for no reason. Got stuck in the hardest cog and nothing will make it shift, including reset, unplugging, replugging and everything i could think of. The FD works fine.
Then today, went for a ride with my gravel bike, and my own RD died exactly the same way! I went down a descent with bad asphalt and vibrations, at the end of the descent, dead RD.
I'm trying to get a response from l-twoo via the intermediary that sold me the groups, I'll keep you posted.
But as of right now, I'm extremely unhappy and would not recommend er9/erx because a bike has to work, if you can't trust your derailleur to shift, then buy something else.
I'll post updates.
TWO DEAD er9 RDs in one week under normal use.