LTWOO eGR

[amacal1]

I am keen to know if anyone has this setup, ifworks well and if you need to change the pulley wheels to suit the flattop chain?

I'd like to know this as well. There are some attractive SRAM cassette options.

[carloescobar]

Recived now. Works flawless straight out of the box. We'll see when I install it. Still deciding on frame. Same breaks as Garza, same mounting as the GR9 ones. As long as they fit confidently on the fork on the new bike, no problem. Think I'll try findiing replacement charge and connection cables, would suck to f one up and wait for weeks for a replacement.

Any suggestions for replacement pulley wheels? 11 speed gravel cassettes?

[amacal1]

Any suggestions for replacement pulley wheels? 11 speed gravel cassettes?

So far I'm pretty happy with my cheapo 12sp Sunshine 11-50 alloy cassette. It's super lightweight, considering the size and shifts mostly pretty smooth. I've seen the same one under a few different brand names, I think, incluidng Goldix. Be warned, though, the eGR will work with 50t, but it isn't the best option. The shifting suffers in the highest gears because the b-screw needs so much room to clear, but you also suffer in the lowest gears because if you shift too quickly the pulley wheel will actually strike the cassette.

I know you were asking for 11t options, but I only brought it up because I was surprised that such a dirt cheap cassette works so dang well.

Edit: I believe I have this one, in the 12sp 11-50 configuration. You may want to consider the 11-46 11sp configuration, or maybe see if you can find an 11-48t cassette somewhere.
https://www.aliexpress.us/item/3256805811005103.html

[carloescobar]

I have that one in 11-46 11 speed actually. Ordered during a sale this fall but never got to install it before winter (Scandinavia).

[amacal1]

Had a little fun yesterday in the snowmageddon (US deep south, not used to this stuff).

[trcycling]

Battery mounting question:

I'm moving my eGR to a new bike that can actually route the wire from the seatpost through the frame to the RD (the previous frame, I had to mount it externally, yuck). I'm trying to figure out how to secure the battery in the seatpost.

• Is there a fit kit that came with it I need to root around in my garage for?
• Will normal Di2 fit kits work?
• What other tricks have people used?

[jonathanf2]

Battery mounting question:

I'm moving my eGR to a new bike that can actually route the wire from the seatpost through the frame to the RD (the previous frame, I had to mount it externally, yuck). I'm trying to figure out how to secure the battery in the seatpost.

• Is there a fit kit that came with it I need to root around in my garage for?
• Will normal Di2 fit kits work?
• What other tricks have people used?

I just cut the bubble wrap that came with the groupset and taped it around the battery holder. I tied ribbon to the battery holder just in case it gets stuck in the seat post. No issues either with my gravel bike and 27.2mm seat post. It stays snug.

[trcycling]

I just cut the bubble wrap that came with the groupset and taped it around the battery holder. I tied ribbon to the battery holder just in case it gets stuck in the seat post. No issues either with my gravel bike and 27.2mm seat post. It stays snug.

Good to know. It's a 27.2 and I was thinking of something similar (soft closed cell foam) but had not thought of the safety string. Where did you attach that so it doesn't just drop down?

[jonathanf2]

Good to know. It's a 27.2 and I was thinking of something similar (soft closed cell foam) but had not thought of the safety string. Where did you attach that so it doesn't just drop down?

There's indented sections on both the top and bottom of the battery holder. Ribbon seems to work for me since it's flat, easy to grab and can be tied/removed with little effort.

[trcycling]

Ahh. Although I was actually concerned about the 'other end' that you'd have to pull on to retrieve the battery

[jonathanf2]

Ahh. Although I was actually concerned about the 'other end' that you'd have to pull on to retrieve the battery

You can make that ribbon longer, just in case the ribbon on the lower end comes off. It's more of a redundancy. 

[trcycling]

Rapid drain or charge status failure


I did get my eGR remounted properly in the seatpost (vs external before) of the new (to me) bike. Thanks for the advice earlier. So much nicer looking that way.

BUT, I got an unhappy surprise on my ride today when it died.  I last checked via app about a week ago and it showed 65% I went on a 41 mile ride and hung it upside down for a few days. Went out this morning and it died 2 miles in. Once I applied power and could reconnect it was indeed at 4% dead. 

So it appears that one of two things happened:

1) 65% indicated is erroneous and should be considered very low. FWIW, I reinstalled it showing 74% and did not charge at that time. 71 miles later it showed 65% which seemed pretty reasonable. Deat at 112 miles. (I don't have shift count but that 41miles in between was a heavier than average shifting exercise. Note: I took the 'bring your own battery cell' approach when ordered. So I'm aware that a different cell than the manufacturer calibrated on (even in spec) could be the problem. But I suspect a lot of people buy it this way since the LiOn shipping costs are so high.

2) A wild theory: Hanging it upside down for storage keeps the motion-sensing RD alive and drains the battery. PURE THEORY but it seems possible.

Does anyone have thoughts?

[amacal1]

Rapid drain or charge status failure



So it appears that one of two things happened:

1) 65% indicated is erroneous and should be considered very low. FWIW, I reinstalled it showing 74% and did not charge at that time. 71 miles later it showed 65% which seemed pretty reasonable. Deat at 112 miles. (I don't have shift count but that 41miles in between was a heavier than average shifting exercise. Note: I took the 'bring your own battery cell' approach when ordered. So I'm aware that a different cell than the manufacturer calibrated on (even in spec) could be the problem. But I suspect a lot of people buy it this way since the LiOn shipping costs are so high.

2) A wild theory: Hanging it upside down for storage keeps the motion-sensing RD alive and drains the battery. PURE THEORY but it seems possible.

Does anyone have thoughts?

1) This may be dependent on your battery. But I can regularly get MANY more than 112 miles out of a charge. Also, 65% is not anywhere near dead for me. Again, assuming your unit is otherwise not damaged, it could be that your battery cells are responsible for this.

2) I can't speak for hanging "upside down", but I sometimes store mine by hanging it 90deg against a wall (hanging it on a wall by the front wheel) and I have not experienced any draining.

[jonathanf2]

I just got back from a weekend bug out in the desert. I threw all of nature at my LTwoo EGR and the groupset held up like a champ. At this point if people are having issues with their hardware, please just use your local bike shop! Blows my mind with all the whiny cyclists on this forum who start raging when life gets a bit difficult! 

[sOKRATEs100]

Hi,

will this groupset fit for my TanTan GR040 (http://www.tantancycling.com/index.php?_m=mod_product&_a=view&p_id=841) with flat mount holes?

Many thanks, Dennis