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Re: LTWOO ER9 & ERX - Electronic groepsets
It will probably be quite a bit more than $200 to get the rest of the things you mentioned, unless you're going ultra budget. $400 seems more likely for quality parts. Still, it means that a quality groupset can be had for under $1000 if LTWOO turns out to be reliable. Time will tell.

I just made an AliExpress cart of:
- Senicx PR2 DUB crank (to avoid 24mm alloy axles)
- Shimano M6100 chain
- ZTTO 12S 11-34 cassette
- 2x IIIPro centrelock rotors 160mm

And that came to 220 AUD (150 USD). I accept that there are likely higher quality options out there, but I would think that this presents a decent level of quality for Chinese products. You could even change to a Shimano 105 cassette as well and still be within budget.

August 06, 2023, 05:44:03 PM
1
Re: Airwolf: What is this model inspired from? [Trek Madone]
As a buddy told me:

"Why would they risk a huge contract (from Trek) for knocking out a few frames with $200 profit per frame?"

Fully agree - there's a pretty simple commercial incentive here for legitimate factories to avoid there being additional frames coming out of genuine moulds. If you were the big bike brand on the other end (like a Trek) you would expect that any contract is very strict about termination/penalties for IP infringement, and if you're the factory, you sure as hell won't want to lose a massive contract to sell a few frames for (relatively) tiny profit.

August 08, 2023, 10:00:02 PM
1
Re: LTWOO RX hydro sets
I've done a teardown of my broken LTWOO brifter to see what's inside. I have the part-1 video up right now on youtube. Interesting finds include that the hydraulic reservoir is a modular part that pops right out.

(What's inside a L-TWOO hydraulic lever? Teardown & anatomy of a failure)



Appreciate the detailed teardown. That was an interesting look at their levers. Seems like it's worth waiting for some more fixes to be put in place.

August 15, 2023, 06:46:21 AM
1
Re: LTWOO RX hydro sets
Thanks for the feedback! I have never worked hands-on with Campy so I've only been able to go off of the material online, which admittedly is sparse, it's good to hear from someone with real-life experience on this.

I guess I'm still on the fence over if this is a "good" indexing design. On one hand (as you illustrate) Campy has a good track record with making it work well, even in off-road applications. On the other hand this friction system design is inherently a zero-sum compromise between shift-action-lightness and indexing security. Meanwhile, Shimano and SRAM's systems use mechanical interference to achieve indexing.

As far as off-road goes, it's worth noting that for Ekar, Campagnolo changed the thumb lever design a bit (L-TWOO's version is almost like a hybrid between the Ekar version and the original Ultrashift version) and it's a single-click only. I don't think this is a bad thing - over the years I've had 9/10 speed Campagnolo Chorus (with the multi-shift down) and 11 speed Potenza (single shift down, with the droopy thumb lever)

For reference - ultrashift levers (note higher thumb button):


Powershift levers (see lower thumb button):


Ekar levers (redesigned thumb button):


For what it's worth, I think the single-click Powershift levers with the lower thumb button are excellent - the improved ergonomics is worth the trade-off against being able to shift across multiple harder gears. I have found that on bumpy surfaces, the Ultrashift levers can sometimes have me going down two gears when I only intended to go down one. I suspect that's why Campagnolo may have taken that approach with Ekar.

August 15, 2023, 03:49:50 PM
1
Re: LTWOO ER9 & ERX - Electronic groepsets A review from GC Performance. On the whole, pretty good apart from initial battery issues (now fixed).

https://youtu.be/h2PbzMyeUzA?si=_yK2JAWeyxlnuHzP

August 25, 2023, 05:27:19 PM
1
Re: Interesting Aliexpress finds! - good deals, interesting stuff, new products etc! New PR1 crank coming soon from Senicx - one to keep an eye out for on AliExpress



As seen in this video here:

https://www.bilibili.com/video/BV138411z7Un/

August 26, 2023, 10:05:56 PM
2
Re: RYET road wheels Thanks for the recommendations. re: oz cycle, as long as I'm not promoting the dog killer then that's okay!

As for the brake track, I have pretty low expectations but 99% of my riding is in the dry - I'm in a pretty dry climate and if it's raining I'd usually go on the trainer. I'll keep an eye on the hubs - a YouTuber mentioned in a review from mid-2022 that the brake track was poor in wet conditions and the hub had poor weather sealing, but the one I've bought appears to have both a different hub design and seemingly a more grooved brake track.

Hasn't even shipped out yet so probably still a few weeks until it arrives.

August 31, 2023, 07:30:42 AM
1
Re: Lightcarbon: New LCR017-D (or Yishun R1058-D) I actually prefer the production version - the lines look more proportional. Much like a Merida Scultura but with a threaded BB. Could be my next bike!
September 07, 2023, 07:42:55 AM
1
Re: Groupset News
Just spotted Sensah Empire HRD 11 speed for sale on Aliexpress. Price is $249 for shifters, disc brake calipers, and derailleurs. Looks promising!

https://www.aliexpress.us/item/3256805841249421.html

Thanks for that - I've done a little groupset comparison for anyone interested in the current state of the market for hydraulic groupsets. I have used official store prices for Ltwoo and Sensah. All items are shifters, brakes and derailleurs unless indicated otherwise. All prices include postage where relevant (to Australia - not sure how it differs for other markets).

Mechanical

Code: [Select]
| Groupset Name          | USD  | Link                                                      |
|------------------------|------|-----------------------------------------------------------|
| Ltwoo R7               | 240  | https://www.aliexpress.com/item/1005005708638779.html     |
| Ltwoo R9               | 265  | https://www.aliexpress.com/item/1005005097651417.html     |
| Ltwoo RX               | 287  | https://www.aliexpress.com/item/1005005035653680.html     |
|------------------------|------|-----------------------------------------------------------|
| Sensah Empire HRD      | 247  | https://www.aliexpress.com/item/1005006027398876.html     |
| Sensah Empire Pro HRD  | 297  | https://www.aliexpress.com/item/1005005961758310.html     |
|------------------------|------|-----------------------------------------------------------|
| Shimano Tiagra 4700    | 306  | https://www.aliexpress.com/item/1005005767481889.html     |
| Shimano 105 R7020      | 430  | https://www.aliexpress.com/item/1005003723174953.html     |
| Shimano Ultegra R8020  | 530  | https://www.aliexpress.com/item/1005003723174953.html     |

Electronic:

Code: [Select]
| Groupset Name         | USD  | Link                                                                                                                   | Notes          |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|----------------|
| Ltwoo ER9             | 514  | https://www.aliexpress.com/item/1005005666489670.html                                                                  |                |
| Ltwoo ERX             | 656  | https://www.aliexpress.com/item/1005005666489670.html                                                                  |                |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|----------------|
| Shimano 105 R7170     | 767  | https://www.aliexpress.com/item/1005005766195381.html                                                                  |                |
| Shimano Ultegra R8170 | 1435 | https://r2-bike.com/SHIMANO-Ultegra-Di2-R8170-Complete-Group-2x12-Crank-Length-1725-mm-50-34T-SPECIAL-OFFER            | Full set       |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|----------------|
| Sram Rival 2x         | 697  | https://r2-bike.com/SRAM-Rival-eTap-AXS-Road-Disc-HRD-Flat-Mount-Road-Upgrade-Kit-2x12                                 |                |
| Sram Force D1 2x      | 742  | https://r2-bike.com/SRAM-Force-eTap-AXS-Road-Disc-HRD-Flat-Mount-Upgrade-Kit-2-speed                                   | With rotor     |


Gravel:
Code: [Select]
| Groupset Name         | USD  | Link                                                                                                                   | Notes           |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|-----------------|
| Ltwoo GR7 1x10        | 208  | https://www.aliexpress.com/item/1005005754630103.html                                                                  |                 |
| Ltwoo GR9 1x11        | 265  | https://www.aliexpress.com/item/1005005148057429.html                                                                  |                 |
| Ltwoo GRT 1x12        | 287  | https://www.aliexpress.com/item/1005005048297285.html                                                                  |                 |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|-----------------|
| SRAM Apex XPLR 1x12   | 554  | Multiple links, see notes                                                                                              | Parts separate  |
| SRAM Rival XPLR 1x12  | 770  | https://r2-bike.com/SRAM-Mullet-Rival-eTap-GX-Eagle-AXS-Gravel-Upgrade-Kit_1                                           |                 |
|-----------------------|------|------------------------------------------------------------------------------------------------------------------------|-----------------|
| Shimano GRX 400 2x10  | 346  | https://www.aliexpress.com/item/1005005354064020.html                                                                  |                 |
| Shimano GRX 810 1x11  | 789  | https://r2-bike.com/SHIMANO-GRX-Gravel-Group-RX810-Hydraulic-Disc-Brakes-1x11-42-Teeth                                 | Full set        |
| Shimano GRX 820 1x12  | 1122 | https://r2-bike.com/SHIMANO-GRX-820-Complete-Group-1x12-Crank-1725-mm-42-Teeth                                         | Full set        |



September 09, 2023, 11:41:08 PM
16
Re: Interesting Aliexpress finds! - good deals, interesting stuff, new products etc! Sensah hydraulic gravel groupsets now available.

Looks to be a new rear derailleur with these sets too.

1x11
https://a.aliexpress.com/_mrZMO2O

1x12
https://a.aliexpress.com/_m0llS6e

September 26, 2023, 08:54:38 PM
6