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Re: LTWOO ER9 & ERX - Electronic groepsets Alright! I think I can now give some thoughts on my eR9 experience. I have now ridden ~400 km over a few rides, one of which was a ~125km ride. I am now using my previous Shimano 11-speed cassette. I guess my take will be similar to what Trace Velo, China Cycling and GC Performance have said; when it works, it is amazing! Shift is smooth, especially when indexed properly. I don't have any issue shifting under load. Though I am only a 70kg rider with max power of ~950W.

So far, I have not had any issue with my unit, except the faulty cable, which LTWOO sent replacement part promptly. My interaction with LTWOO on Aliexpress has been non-optimal, because of the time zone difference and they seem to reply only at certain hours of the days. So, my suggestion if anyone is running into issues is to be precise, concise and easy to understand, as they seem to be using Aliexpress translator for the communication.

A couple of things that I noticed: while the manual trim works, there is no way to switch back to the non-trimmed position, unless you go to the next chainring and back. This should be easily fixed with a firmware update. Another thing I noticed was that battery life is not that great. From a full charge, I could only get ~400km. I am not sure if this is from the battery or just because it is the first battery cycle. I will have check for the next battery cycle.

Installation of the groupset cannot be any easier than installing Shimano Di2 as they are identical, even down to the mineral oil for the brake. The only difference is the way it is bled. LTWOO has another air outlet which should make it easier to bleed. As long as you follow the instructions that LTWOO has on YouTube, you’re good. The brake also feels amazing, I don’t notice any significant difference to modulation or stopping power to a similarly well-setup Shimano brakes.

Overall, I am happy with the groupset and I certainly hope this won’t change anytime soon.
September 21, 2023, 12:50:32 PM 		1
Re: Lightcarbon LCG071-D Build
Quote from: Dunndunn on September 26, 2023, 05:56:30 AM
Hi! Can anyone comment on how long it took from ordering to the frame was shipped? Been two weeks and no shipping info.

47 days for me from payment to tracking #, and then a week shipping to doorstep
September 26, 2023, 11:20:04 AM 		1
Re: Groupset News Here is some news about eGR:

Currently, eGR has started small-scale tests in the pre-production and final stages, and it is expected to be available for sale in early next year (after the 2024 Chinese New Year).

I have some pictures of eGR from friends who have received the kit.
https://photos.app.goo.gl/Cc4wmfB5XBxMcgTw7

The main focus is on comparing the weight with the GRT Mechanical Carbon Fiber Hydraulic Kit:
The eGR rear derailleur is 65g heavier than the GRT rear derailleur. The new version of the clamp has a more refined appearance and is 45g lighter per pair. The eGR shifter no longer has a gear mechanism, making it 52g lighter per pair. However, due to the additional weight of batteries and cables compared to the mechanical kit, it adds approximately 78g. Therefore, the eGR weighs about 50g more than the GRT carbon fiber overall, excluding the battery mount plug.

The eGR brake lever and rear derailleur housing are made of carbon fiber, while the rear derailleur guide plate is made of aluminum alloy.

Compared to eR9/eRX, the shape of the eGR brake lever is less outwardly extended, the button shape is larger, and the button travel has increased, resulting in a better feel. Apart from these changes, there are no significant differences.

Although the eGR left-hand side has buttons, it has been confirmed that it cannot control the same rear derailleur with two hands like SRAM. The buttons on the left side may be designed for electronic seat post adjustment (I'm not sure if this is accurate).

The eGR features a newly designed integrated clamp that is lighter in weight. However, due to Shimano's patents, there have been no improvements in the bleeding method.
October 16, 2023, 08:28:41 PM 		1
Re: Groupset News Looks like the eGR brake calipers have a new design, they differ from the GRT design.
October 23, 2023, 11:21:24 AM 		1