Chinese Carbon MTB Forums
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Re: Is an Chinertown build really worth it?
I'm a glutton for punishment and I like to be different, so chinese builds are perfect for me! 
February 10, 2025, 02:17:49 PM |
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Re: TT-X42 Full Bike with Carbon and Wheeltop
Hello. I was a little ambitious - it's possible if you go with L-Twoo ER9 instead. Add another $150 USD or so for the Wheeltop groupset - maybe you could fit it within budget if you managed to time the coupons perfectly. Here's a similar build from individual parts (though the wheels and crank are probably a bit better)
February 24, 2025, 01:23:25 PM |
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Re: Dura Ace bike for 2600$ from Sava
Flights to China are easy to find for 400€ return. Just rock the bike a bit around the local segments and bring it back home as you forever old bike.
February 25, 2025, 01:34:56 PM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
I just received my new eRX from 80 Designer Store. The new shifter ergonomic is such an improvement, in my opinion. It's actually heavier than the old eR9 by almost 15gr for each shifter. I'll take the 15gr penalty for improved comfort. Kind of curious how the new eR9 would weigh compared to the new eRX. It seems like an odd choice if eR9 ends up being lighter than the eRX. I can confirm that the new shifter can be paired with my other eR9 RD and FD. It's funny I can pair two different sets of shifter for one RD and FD, at the same time. March 07, 2025, 05:36:16 PM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
I just had a chat with Ltwoo Official Store. They said they were selling the new version and are sorry somehow received an old one. They said I could return or exchange and get a new version. I may go ahead and try to do that since I'm not installing this on a frame right now anyway. More like they were hoping you wouldn't notice!
March 31, 2025, 11:56:11 AM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
Been speaking directly with 80 Designer Store over the last week or so and sounds like they are sold out of the new version ER9 which would have been my preferred option. I received my eRX groupset a few weeks ago but only got around to installing on Saturday. It is the full v.3 groupset and I have to say I am very impressed so far. Installation was relatively straightforward, I had a few issues bleeding the brakes but I think they were self-inflicted! The finish and quality of the all components is fantastic, very premium and looks a huge improvement over the original design, particularly the front derailleur. I put 100km on it over the weekend and was very happy. The brakes are as good as any I have ridden and the shifting was almost always fast and crisp. I had a few slow shifts but think that is more the fact I didn't install a new cassette with the groupset and used one that has a few 1000kms on it. The ergonomics on the hoods is great too, not quite as big as mechanical 105 but bigger than Sram Rival, perfect for my medium hands. All though all has gone well for me so far, I feel this is still something that I wouldn't recommend to someone and that is more because I don't have full confidence in warranty and support rather than the quality of the product. Will try to add more thoughts as I get more miles. April 14, 2025, 03:34:39 AM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
My ER9 rear derailleur seems to have very weak spring tension in the cage, which causes a lot of chain slap. I know it doesn’t have a clutch, but even compared to the Ultegra Di2—which is already not great at maintaining chain tension—the ER9 is noticeably worse. I only use it on the road, so there’s nothing out of the ordinary: just the occasional crack, pothole, or speed bump. First what chainring and cassette combination are you running? The ER9/X officially supports a "measly" 11-32t cassette max. I'm running both a 50-34t/11-34t and 52-36t/11-32t combo on both my bikes, but I found a few things to optimize performance. First make sure your chain is sized perfectly. Even an extra link can throw things off. Second swap out your pulley wheels to Ultegra/DA upper/lower 11t wheels. This will allow you to move the upper pulley wheel closer to the small cog. It will help in tighter shifting and will keep the chain better engaged. Also I'd turn on gear protection to avoid cross chaining. The ER9/X definitely has weaker chain tension compared to a Shimano RD. I ride my bike ER9 bikes on really bad urban roads and light gravel. The steps above should help remedy your issue. June 23, 2025, 11:08:17 AM |
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Re: Budget Build BXT SL-115
Today I can post some photos and an Excel spreadsheet with the overview about prices and weight. All prices in CHF. October 05, 2025, 03:11:01 AM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
Really surprised there's not more noise about the LTWOO ER7 groupset, with discounts I managed to get it for £278.37...... it's got a the different rear mech without the swinging link, the front mech looks very similar to the ERX and the shifters have the newer ergonomic hoods and levers - they are probably alloy levers though. Now on to the shifters and some other subtle differences, there is a bluetooth function that does not appear on my Gen 3 ERX levers that allows the app to update the shifter firmware, also I can only get the ER7 rear mech to pair with the supplied ER7 shifters. I tried to pair the mech with some EGR shifters and it won't find them - however I can get the new ER7 shifters to pair with the older Gen3 ERX mech Also firmware - my ERX mech is at 1.7 and the ER7 is at 1.2 - for some reason I was thinking they'd be the same because i'd assumed the internals would be the same, clearly not. Other changes, the rear mech has an extended cable port and a cable loop clip, and the function button seems to be in a much more convenient position. October 17, 2025, 09:33:24 AM |
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Re: LTWOO ER9 & ERX - Electronic groepsets
Hi, the hood on the left shifter of my Gen1 eRX group is torn. https://www.aliexpress.us/item/3256807100820575.html November 24, 2025, 10:46:31 AM |
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