29er HT Choices: CS-218, CS-887-SL, MB01 or LCM904

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All very simillar, CS-218 are the lightest, but 18.5” frames fits me best. (Long inside leg, short torso). I am NOT looking at the Workswell 063 or 057 frames as they are big bulky old and heavy designs. The MB01 have great geometry but looks bulky/awkward with the seat stay vibration damper.. slightly heavier than CS-218. The CS-887-SL have a massive 65mm BB drop and heavier than MB01, but TT are spot on correct lenght.

Have anyone build a CS-218 or CS-887-SL or LCM904 from Yishin Bike?

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This is the Yishun LCM904 frame

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Here are the geometry for the CS-887-SL 18.5” frame

[bxcc]

Those frames are definitely lighter but the chainstays are way too long for my liking. I don't understand why all of the generic frames are still using 440mm stays or longer. Even full suspension 29er's are under that now.

Other than not being the lightest, the WW-062 is one of the more modern non-boost frames. Plenty long enough in the TT at 620mm for the 18.5" and short enough CS's at 430mm. I guess I'm just confused on why you're saying that the WW-062 is bulky and has old geometry. I can definitely vouch for the quality of products and customer service you will get from XMCarbonSpeed but the CS-887 has relatively old geo with a TT under 610 and CS at 440 for the 18.5". But that is just me, I tend to like my TT's long and stems and chainstays short.

[gohloum]

I have the MB01 and very happy with it.  Used it in a few races and have over 3000 trail miles on it to date. Having BMX history and experience, I wanted an XC bike that was extremely nimble and agile.  This bike has a superb riding experience for that.  Easy to do wheelies, stoppies, track stands, etc.  My build is 20.3 lbs with GX drive train, Hope X2 Brakes, and Fox 32 SC Factory fork.  XX1 would put it sub-20.

[SARED]

Ok old should be refrased as trusted / proven. Bulky More directed to the 057 (1280+-40g thats heavy).  I looked at 062, it’s a good choice, also proven, on/off coms with seller, had/ have some issues with internal cable routing.

The better question are: All the other mentioned frames vs the 062 frame.

My perfect TT are 609mm With a 90mm stem. thus with long legs and short arms a 620TT will give me a +-80mm stem depending on the reach. (I don’t worry that much about Stack as i have long legs...i don’t have such big kahona’s

[Wal-ter]

All very simillar, CS-218 are the lightest, but 18.5” frames fits me best. (Long inside leg, short torso). I am NOT looking at the Workswell 063 or 057 frames as they are big bulky old and heavy designs. The MB01 have great geometry but looks bulky/awkward with the seat stay vibration damper.. slightly heavier than CS-218. The CS-887-SL have a massive 65mm BB drop and heavier than MB01, but TT are spot on correct lenght.

Have anyone build a CS-218 or CS-887-SL or LCM904 from Yishin Bike?

I have not built any of the frames that you listed, but I am looking to a new frame as well as you.

Take a look at the frames below, perhaps you may add them to your list:

WM07 short chainstay: 430
https://www.alibaba.com/product-detail/Winow-2017-mtb-carbon-frame-29er_60594656804.html?spm=a2700.7724838.2017115.206.5e1f548feAgXuQ

QTour M03 original geometry
https://qtour.en.alibaba.com/product/60567728987-804584786/OEM_Factory_UD_29_DISC_BRAKE_Carbon_MTB_Frame_M03.html?spm=a2700.8304367.prge37c812.21.39af34cfMSHjM8

VB-M-095 very light
http://www.velobuildmall.com/velobuild-2018-mtb-29er-carbon-fiber-frame-vb-m-095_p0101.html

[bxcc]

Ok old should be refrased as trusted / proven. Bulky More directed to the 057 (1280+-40g thats heavy).  I looked at 062, it’s a good choice, also proven, on/off coms with seller, had/ have some issues with internal cable routing.

The better question are: All the other mentioned frames vs the 062 frame.

My perfect TT are 609mm With a 90mm stem. thus with long legs and short arms a 620TT will give me a +-80mm stem depending on the reach. (I don’t worry that much about Stack as i have long legs...i don’t have such big kahona’s

It may not be for everyone but the trend is definitely going towards longer TT's with shorter stems. I transitioned that way over the past couple of years. Started with a 605 TT, 100mm stem, and 685mm wide bars. Now I'm at 620+ TT's, 50mm stems, and 760mm wide bars. I have 3 bikes, all with the same bar / stem combo, 2 have 620mm TT and one has 621mm.  I've tried 35mm stems with 800mm bars but it's just too wide for me. For reference, I'm just over 5'11" with relatively normal proportions.

I have the 062 and I love it. But you are correct with the communication being hit or miss. And it isn't the lightest. My 18.5" frame with BSA BB came in at 1198g. If it ever fails, I would probably go for the CS-496 and have to get some boost wheels for it. If XMCarbonspeed has what you are looking for, it's definitely the safest option to go with.

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Thanks Wal-ter for the M01 comment - indeed a good frame, as can be seen on the posts in the forum.

bxcc.. thanks for your imput. I agree, with my Scott Spark i swopped the 100mm stem to a 70mm and at first it felt very twitchy  but way more responsive, after a couple of rides i loved it! Both my bikes had +-440 Rc's up to now, i am sure i'll feel the difference if i go for a 430 RC.

710 Bars works perfect for me.

i am not likely to buy a frame that have not been discussed on this forum, and shipping cost are a big deal killer for me. Thus free shipping on AliXpress are my best option...That puts Workswell top of my list and Xiply second.

The Geo on Yishun LCM904 and Xiamen CS-218 are identical but BB choice.

With same Geo the choice boils down to Seat tube size and wheel size. I'll rather take the 2.35" and 27.2mm options as i won't ever go dropper on this frame and more tyre clearance with wider rims (which does pull the tyre wider as my Brother in law found out on his Spark 900 SL and AM Classic Wide Lighning rimms... a 2,25 did not fit but did on 19mm ali rims)

Weight wise:
Lighter = more expensive = flimsier = Much better chance of failure
Slightly Heavier = cheaper = stronger = Less chance of failure
Thus i do think a couple of grams extra are not so bad to live with ..thats frame and rims.

I just pulled the trigger on a set of Carbon hoops from SpeedSafe on AliX. 365+-10g , 160kg rider weight, Asym 25Depth, 23w 28outer.

[carbonazza]

I just pulled the trigger on a set of Carbon hoops from CarbonSpeed on AliX.

Peter opened an AliExpress shop ?

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My mistake... SpeedSafe not CarbonSpeed. For the price i took the chance. Will see if they last.
 

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Looked at Velobike M091 geo, have an 445 RC and 615 TT... Long rear + short Front, +-1250g. The 095 seems one size to small on the geo chart ..19" TT600! 

[numberzero]

I had this one http://www.lightcarbon.com/mtb_hardtail-14-29er-mtb-hardtail-light-carbon-frame-lcm903. Relatively long geometry but oldschool headangle (71°).
Flat seat stays made the frame comfortable and very responsive at the same time.
It's a good choice for flat, but less capable on steep or fast descents than new school slackened frames.

[Rick64]

My mistake... SpeedSafe not CarbonSpeed. For the price i took the chance. Will see if they last.
 

Ive had no problems with my SpeedSafe carbon asymmetric 29er wheels 28 spoke rear 24 front and power way straight pull hubs  Did you deal with Tommy, I had the invoice made out as warranty replacement so didn't pay any import duty in UK 

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Thanks Rick64, glad to hear your good news, yes i spoke to Tommy. Very helpfull... they have not shipped in 10 days now... but i a getting black decals for free, so i will patiently await shipping. Bought via Alix with p/protection and no paypal fees!