Chinertown
Chinese Carbon MTB => 29er => Topic started by: StefanB on September 17, 2023, 04:28:29 AM
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Light Carbon makes the best frames I have built with and the enduro frame LCFS947 is a favorite of mine. The only drawback is that it cant take long dropperposts, the insert is short.
Now there seems to be a new and very interesting enduro frame on the way from Light Carbon, the LCFS948. What are your thoughts about that frame?
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Looks like a loose copy of the suspension system used by SCOR bikes.
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It does look similar the Scor 4060. Which was on my list when I was looking to replace my 947. Looks cool.
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I like the modern geo and a new interesting bike. For me the VPP suspension is a wildcard. I hope it's well done and fun to ride.
To me, the suspension being overly complex is not a plus. I just want poppy progressive rear suspension.
This bike is very long, but I'd want to overfork it anyway
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i like it...wondering how top tube height will work out...i recognised the frsme design from Thier ebike model LCE971
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It does look similar the Scor 4060. Which was on my list when I was looking to replace my 947. Looks cool.
wondering if they didn't do the design or manufacturing for scor?
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wondering if they didn't do the design or manufacturing for scor?
I don't think that is likely. Scor was founded by bike designers breaking away from another company. Also, the front triangle, rear triangle and the shock linkage are different with light carbon frames being more boxy in general.
More likely, the VPP design is free to copy and Light Carbon already has experience building bikes with suspension running through forked seat tubes.
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i like it...wondering how top tube height will work out...i recognised the frsme design from Thier ebike model LCE971
Yes, it's the same design as LCE971, The rear triangle have some adjustment on the RC length, and the front triangle is adjusted to the shape of the MTB.
attached two photos, one is completed bike of LCE971, another is LCFS948 on designing,
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Chiner frames gets cooler/better every year, bet this thing rides amazing.. Only thing that bugs me is the height of the toptube joint with the seat post, i think enduro frames should have a more aggressive look with lower standover height, but thats just looks.
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I know people have called out the scor 4060 as a possible clone but doesn't Santa Cruz have a bike just like this too? I think the mega tower looks identical
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You might look to book an appointment to get your glasses checked, Jeff.
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You might look to book an appointment to get your glasses checked, Jeff.
That was the issue. After my visit I noticed the linkage was different. ;) That tucked shock and rear triangle had me fooled.
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Is there an ETA on this frame? Spec sheet?
Been on my 947 for almost two years now and a 917 for a year and they’re fantastic. This looks like a welcome addition.
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Is there an ETA on this frame? Spec sheet?
Been on my 947 for almost two years now and a 917 for a year and they’re fantastic. This looks like a welcome addition.
Size M will be in end of November or early December. size L takes an extra month
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Size M will be in end of November or early December. size L takes an extra month
Sweet, would love to know pricing when its been sorted out.
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The chainstay length in the chart seems to be a lie. If you zoom in on the drawing, you can see the dimension of the chainstay is 450mm (plus or minus 3mm). The drawing probably has the true chainstay length since the chart doesn't add up. The wheelbase should equal the front-center plus chainstay length (rear-center).
This is a long chainstay length while the Scor 4060 has short chainstays.
A couple posts on this thread (and maybe Light Carbon's marketing) incorrectly call the suspension "VPP". VPP has counter-rotating links, and this bike seems to have co-rotating links.
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The chainstay length in the chart seems to be a lie. If you zoom in on the drawing, you can see the dimension of the chainstay is 450mm (plus or minus 3mm). The drawing probably has the true chainstay length since the chart doesn't add up. The wheelbase should equal the front-center plus chainstay length (rear-center).
This is a long chainstay length while the Scor 4060 has short chainstays.
A couple posts on this thread (and maybe Light Carbon's marketing) incorrectly call the suspension "VPP". VPP has counter-rotating links, and this bike seems to have co-rotating links.
The length or RC will be 435mm.
the data is 450mm in the drawing because the drawing is for EMTB frame LCE971, the drawing of LCFS948 is no finished, so we have to use the old drawing to show it, EMTB request the longer RC.
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The length or RC will be 435mm.
the data is 450mm in the drawing because the drawing is for EMTB frame LCE971, the drawing of LCFS948 is no finished, so we have to use the old drawing to show it, EMTB request the longer RC.
Do you know what size the shock will be on the new LCFS948 frame?
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Do you know what size the shock will be on the new LCFS948 frame?
In our plan the rear shock is 210*55mm,
now we are change the design to make the frame can fit for the shock with big piggy bag.
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In our plan the rear shock is 210*55mm,
now we are change the design to make the frame can fit for the shock with big piggy bag.
with these changes will the shock size change or just have more room?
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We change the linkage, so there are enough room for coil shock,
and There will be external cable routing at the head tube.
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So when do you think this frame will be avaible?
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So when do you think this frame will be avaible?
They are available to order now if you ask. I placed an order about 2 weeks ago. Was told mid Jan they would ship
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Pls make it a stiffer rear swing arm.
If not, @lightcarbon you will get issue like that problem of
FS 381 model.
Looking forward for a size s.
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The rear swing arm as same as which in enduro EMTB, so no need warry about it,
size S now have no plan for it, first size M and L,
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Do tell when there is a size S. Not everyone can use 460 reach m size.
But I do understand, for L and M.
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This might already be out for production, but if there is anyway to shorten the seat tube length so riders could fit a larger dropper post and have a lower stand over height, it would be really appreciated. It would also probably make the bike more attractive to a larger audience of buyers. 495mm is a very long seat tube length for a size large bike. Most manufactures try to get those below the 450mm mark.
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Yep. STA way too high. Do try to shorten it
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This might already be out for production, but if there is anyway to shorten the seat tube length so riders could fit a larger dropper post and have a lower stand over height, it would be really appreciated. It would also probably make the bike more attractive to a larger audience of buyers. 495mm is a very long seat tube length for a size large bike. Most manufactures try to get those below the 450mm mark.
the size M is on testing, size L have no make the metal mold, need more time, so we have the time for seat post,
but one question is if short the length of seat tube, it's hardly make sure the enough length for inseart parts of dropper post. the seat post only can be between the two red lines,
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So when do you think this frame will be avaible?
after chinese new year holiday. about in late February or early March,
Now we are improving the strength of the rear triangle because some problems were discovered during testing!
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the size M is on testing, size L have no make the metal mold, need more time, so we have the time for seat post,
but one question is if short the length of seat tube, it's hardly make sure the enough length for inseart parts of dropper post. the seat post only can be between the two red lines,
Leave it as it is. like you state, you are limited on how far into the frame you can go. if you make it too short, a taller rider wond be able to get a post in far enough and will still have issues.
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after chinese new year holiday. about in late February or early March,
Now we are improving the strength of the rear triangle because some problems were discovered during testing!
Thats great news. I like this frame and I´ll definitely buy it but 170 mm is a little too much travel for me. Is there any way to calculate the travel with a smaller shock, say 210x50?
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Leave it as it is. like you state, you are limited on how far into the frame you can go. if you make it too short, a taller rider wond be able to get a post in far enough and will still have issues.
The trend in the bike industry is to have a longer dropper post with a shorter seat tube. For example the ibis Ripley and Ripmo, two of the best selling bikes in the industry, have ST lengths of 418 and 432mm respectively. It allows for more customization via different length dropper post and is much nicer as you can move the seat way out of the way when you are descending. With dropper post reaching lengths of 240mm, it shouldn’t be a problem accommodating longer legged riders. Additionally, droppers are starting to have shorter and shorter insertion lengths, which can make up somewhat for a short frame insertion length. If this seller wants to sell the most amount of frames, he should try to lower the seat tube length. As it is, it will deter buyers looking for a frame with modern geometry.
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The trend in the bike industry is to have a longer dropper post with a shorter seat tube. For example the ibis Ripley and Ripmo, two of the best selling bikes in the industry, have ST lengths of 418 and 432mm respectively. It allows for more customization via different length dropper post and is much nicer as you can move the seat way out of the way when you are descending. With dropper post reaching lengths of 240mm, it shouldn’t be a problem accommodating longer legged riders. Additionally, droppers are starting to have shorter and shorter insertion lengths, which can make up somewhat for a short frame insertion length. If this seller wants to sell the most amount of frames, he should try to lower the seat tube length. As it is, it will deter buyers looking for a frame with modern geometry.
well the Ibis bikes don't have a shock running through the seat tube either. have the seat post insertion lengths been posted yet? I have a 180mm dropper on LCFS947 and I have 90mm of the non-dropper post sticking out of the frame. Not once have I thought that I needed a longer dropper. I am guessing they had to go with the choices they did because of the shock placement and needing to have a specific amount of insertion length.
Also trends change, wait a few years and this may be the new "in" frame design. ;)
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went and found the geo chart from when I ordered. looks like seat post insertion are as follows 17" (200mm) and 19" (220mm). stand over looks to be 17" (774mm) and 19" (791mm). that is about 14mm more that the LCFS947. this frame has 50mm more insertion length than the 947 as well. I would actually be able to get a longer dropper in the new frame vs my old frame for only 14mm more stand over. currently I am at the max (10mm less) insertion length to get the seat where I need it. this seems like a win to me.
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Have anybody built a bike from this frame? i have ordered a frame but looking at the levrage ratio rising at the end it seems like air shock is the best here.
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I received the size medium that I ordered. Frame built up just fine. Only issue was the original shock we bought was the SR Suntour Triair 2 with the sideways piggy back and the frame was about 5mm too narrow. Switched to the voro coil as the original triair is no longer available. One bummer was that all the drawings had a ISCG-05 mount shown but the frame I received did not. I asked and was told that production frames don't have it. Went with a crank based bash guard instead.
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oh okay, i will go for the super delux coil. Do you have any pictures? i saw a geo chart with stack arund 603mm and it seems really low. and chainstays at 440mm
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I received the size medium that I ordered. Frame built up just fine. Only issue was the original shock we bought was the SR Suntour Triair 2 with the sideways piggy back and the frame was about 5mm too narrow. Switched to the voro coil as the original triair is no longer available. One bummer was that all the drawings had a ISCG-05 mount shown but the frame I received did not. I asked and was told that production frames don't have it. Went with a crank based bash guard instead.
do you have any pictures? how do you find the stackhight?
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Here is the bike. Sorry for just the one pic. I have been unable to upload pics lately.
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Trying a few more pics
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Nice! Have you built it with 160mm or 170mm fork? Have you been riding it? And if you have how does it feel with a coil?
My frame is on its way home.
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Nice! Have you built it with 160mm or 170mm fork? Have you been riding it? And if you have how does it feel with a coil?
My frame is on its way home.
This bike was set up as a 170/170mm, no rides yet. the trails around here are still closed. the coil will take a bit to dial in as i am unsure of the spring rate. have a few options and even a progressive spring so should be able to get something to work.
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Got my frame today. All lookig good but i will keep my eye on a small defect at the top headcup. Can be that they didn't sand it down there from the manufactory
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Got my frame today. All lookig good but i will keep my eye on a small defect at the top headcup. Can be that they didn't sand it down there from the manufactory
Not gonna lie I’d send an email on that. It looks more than just sanding
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I will keep an eye on it and if it change anything I will contact them. Its 2 year warranty. And im going to race national enduro series with it.
First impression compared to my orbea rallon r5 after a little ride and jumpig. More poppy, its slack, original geo is with 571mm axel to crown. with fox 38 170 its 63.5 with 76.5 seattube. Floppy in slow pace. Buttery smood initially with good midstroke. Did some 40-50cm drops and there was no problem with bottoming out.
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First race done and some serius bikepark laps.
Positiv:
- The frame is durable and can withstand some abuse. Even after a bad landing from a jump, it remained in one piece.
- It handled a 2-meter road gap jump without issues.
- On race day, it pedals efficiently and felt solid without anything coming loose, even after 5.5 hours of training plus 4 hours of racing.
Negativ:
- With 170mm of travel and a rising curve at the end, the bike has a high leverage ratio when paired with a 210x55 shock. This results in the rear shock, a Fox Float X, needing 240psi to achieve 30% sag.
- The rear shock endures a hard life, and if you weigh above 90kg, this bike may not be suitable for you.
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hi
why we don't see this frame on LCF website?
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Dont know. I got in contact with jim at Lightcarbon directly to order mine. Took almost 2 month's to get it home.
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ok thanks
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You can see the specs in the PDF catalog available on the website.
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After more riding, both park and home trails. There is two things to keep in mind. For a modern enduro frame stack on the M frame is to low. On the L frame its good. Did end up using 50mm rise handlebars to get same rise as my orbea rallon 2020 to feel comfortable.
Frame is design around 571mm axel to crown that is 160mm forks and all 170mm forks are 583-586 so you end up with 63.5 headtube. If you dont go for 160-160mm instead.
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It looks like the "M" is rather on smaller and L on bigger size, there is huge gap between them reach 460 -> 495, normally sizes are by 20 or 25mm. I am "unfitting" just in the middle.
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170mm of travel on a 55mm stroke is crazy. You'll need to stuff a few volume spacers in the shock for sure.
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170mm of travel on a 55mm stroke is crazy. You'll need to stuff a few volume spacers in the shock for sure.
yes i use one .6" ³ orange spacer, started with one .4" ³. not to bottom out to hard, best with 55 stroke is 150-160. for 170 it should have been trunion 205-60 or 65. for a better levrage ratio like Scor 4060LT that has a very similar design.
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Now with some sweet burgtec 50mm rise to compensate for low frame stack.
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I received the size medium that I ordered. Frame built up just fine. Only issue was the original shock we bought was the SR Suntour Triair 2 with the sideways piggy back and the frame was about 5mm too narrow. Switched to the voro coil as the original triair is no longer available. One bummer was that all the drawings had a ISCG-05 mount shown but the frame I received did not. I asked and was told that production frames don't have it. Went with a crank based bash guard instead.
Have you been riding your bike, impressions? Any problems with your frame?
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So the frame broke. Took it off a rock roll to 2ft drop and both seat stays broke on landing. This happened on the second run of a light enduro trail. Light carbon has been very responsive but not sure what will happen. More to come.
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That is crazy.
could you Share pictures??
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I have cracks in my seat stays after one competition and some bikeparking. I have been having dialog with light carbon and they are making a stronger rear triangle and it will be ready in oktober. but i dont trust this frame anymore. Sent a question of refund but i have not received any replies from them on this.
I think the leverage curv is to much for 170mm on 55mm stroke.
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Both sides broke in the same spot
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Both sides broke in the same spot
What does lightcarbon say?
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Yikes! The fact that these breaks are in different spots is even more concerning...like the CF they are using or process is bad?
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What does lightcarbon say?
Waiting for their full response. They were super responsive so I want to give them the chance to correct it. If they have a new rear triangle that would be a great solution. The frame seems very thin and spindly for the leverage forces that are taking place.
The rider is about 190lbs and we had to run a 650lb spring to get 30% sag. This frame is definitely at the limit of the leverage curve.
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So I heard back from light carbon on this issue. They are going to replace the frame with the new version or updated version under warranty. I was given a time frame of middle of October. I was told they are doing additional testing on the frame and a stronger rear swing arm will be made. One cool feature is the new version of the frame will have down tube storage under the water bottle mounts.
Not a great situation to be in but I can't really ask for a better resolution from Light Carbon. As it stands I am very happy with the process and excited to see the new frame. I will post an update when I have more info
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Hey man happy to hear this....Lightcarbon have been great to me with both my tester frames.....
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The rider is about 190lbs and we had to run a 650lb spring to get 30% sag.
I'm 185 lbs and run 450lbs springs on my Rocky Mountain bikes (which have a very favorable leverage curve) and 550 lbs on my Scott Ransom (which has a trash leverage curve). Running a spring on this frame is daring in itself, and running a 650lbs spring on a 190 lbs rider is absolutely bonkers.
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Anyone heard something from Light carbon? it´s noverber now and not a word. just a broken frame that i cant use..
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Anyone heard something from Light carbon? it´s noverber now and not a word. just a broken frame that i cant use..
I ended up going with a different frame which i had asked about. this was a customers frame and they ended up purchasing a name brand enduro frame while they waited. So we switched to a 918 XC frame and LC was able to send that right away. Not sure who your contact is but have you reached out and they have not responded, or you just have not heard from them? I was told November for the delivery of the new rear triangle for my warranty case. so i would be surprised if it was ready now. if you have not done so, i would reach out and ask politely what the status is.
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hello, do you have news about the new rear triangle?
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hello, do you have news about the new rear triangle?
I have received info that the new frame is ready for shipment.
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I have received info that the new frame is ready for shipment.
Have they provided any pictures or info of what they changed or what is different with the new frame? Are they sending you just a rear triangle or a whole new frame? please post pictures when you receive the frame.
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No information yet, just that my frame is ready for shipment. I'll post an update soon. Not sure what I'll do with it. I don't really trust it anymore.
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Have received the new frame.
Changes i can see. Stachbox under the water bottle. Re designed linkage between seat stay and frame. Same weight. Did a new measure and got 160mm rear travel on old and new frame. Dont know that to do with it now. Cant really sell it and im not to convinced that it will work depending on that there's no changes in levrage ratio
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Why would you sell this frame?
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I have no use for it anymore. I have a ican x17 that has,worked perfect.