LTWOO ER9 & ERX - Electronic groepsets

[RDY]

Has anyone tested clearance for gravel in both tires and cassettes?

Does it take a 11-40? 11-42?  45mm tire?

Tires it'd be frame dependent.

[kbernstein]

Tires it'd be frame dependent.

Of course it is but front mech also plays a role in tire clearance. Most road groupsets can't take more than ~42mm

[jonathanf2]

Tires it'd be frame dependent.

I'd be curious if you could use a hanger extender like a Wolftooth Roadlink? The ERX appears to use a similar shadow style hanger setup now, so it could be possible push the RD to clear an 11-40t if it fits.

[Serge_K]

I'd be curious if you could use a hanger extender like a Wolftooth Roadlink? The ERX appears to use a similar shadow style hanger setup now, so it could be possible push the RD to clear an 11-40t if it fits.

I'll be able to report on that towards the end of the year, it's a setup i plan to run with the er9.

[raisinberry777]

ERX review video in Chinese here:

https://www.bilibili.com/video/BV1GN411Y7Ar/

[VAVAVOOM]

I'll be able to report on that towards the end of the year, it's a setup i plan to run with the er9.
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Anyone know how far away the ER9 is from being released?

[Skiesare]

I seem to have read that the maximum rear sprocket for this group is 32 teeth, but some sellers on Ali are packaging it with an 11-34 cassette. Does anyone have any more information or practical experience with this?

[kbernstein]

I seem to have read that the maximum rear sprocket for this group is 32 teeth, but some sellers on Ali are packaging it with an 11-34 cassette. Does anyone have any more information or practical experience with this?

I seem to recall from one of the first videos about RX hydro that it was officially max 32T but that they had people on 36T no problem. It's probably the exact same cage for eRX.
It has to be true, 32T is just really bad in 2023. i'm confident it would take 36, but how much more can it take?

[erallen30]

The LTWOO er9 is now available on aliexpress. Its price is listed at $565 without the box. Not too bad. Curious to see the weight.

[raisinberry777]

That price point means things start to get more interesting - particularly when you consider that you could probably get cranks / cassette / chain / rotors for around $200 extra. I look forward to seeing some people get them in person.

[erallen30]

That price point means things start to get more interesting - particularly when you consider that you could probably get cranks / cassette / chain / rotors for around $200 extra. I look forward to seeing some people get them in person.

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.

[erallen30]

I'm still not a buyer of LTWOO er products without remote shifters, though.

[erallen30]

The LTWOO er9 is now available on aliexpress. Its price is listed at $565 without the box. Not too bad. Curious to see the weight.

Get this thing at $499 with free shipping and they'll sell like hotcakes.

[raisinberry777]

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.

[jcr]

The LTWOO er9 is now available on aliexpress. Its price is listed at $565 without the box. Not too bad. Curious to see the weight.

eR9 without box or battery is $514 https://www.aliexpress.com/item/1005005666489670.html