Hi there, Is there a recommendation for a carbon frame that has reasonable Geo. I am looking to build a Rigid fat bike.
Is the LC613 worth considering?

https://www.lightcarbon.com/lightcarbon-full-carbon-26-fatbike-frameset-with-carbon-fork_p43.html


Thanks

I noticed it says Max chainring is 30T. I run 32T oval so it wouldn't work for me.

I think XM Carbon speed was the place to go. Then Peter shut down to try his hand at crypto currency. I think he's back in business but that would worry me for future support. I'm pretty sure TanTan bought rights to use that mold.

Little update of the building process.
Last components will arrive this week, and I will be able to mount the wheels and finish the assembly.

Is that a DIY kydex downtube protector or did you find something that fits well? I tried making a kydex but it didn't form well and looked like garbage. Still trying to figure something out. A giant Trance X has a rubbery one I'd love to get my hands on but no luck so far

Does anybody have any experience with LightCarbon wheels on a mountain bike ? I see plenty of posts about road wheels.

They have quoted me $499 for the DT350-AD930-XC-RACE before shipping. https://www.lightcarbon.com/mountain-bike-29er-asymmetry-design-mtb-carbon-rims_p75.html

Presume these are the DT Swiss hubs, although the site just says DT350 ?

- DT350S MTB boost hubs (15*110/12*148mm)
- Sapim Race spokes (28)
- Asymmetric design MTB carbon rims, tubeless ready

The only thing that concerns me is the inner bead width of 25mm which seems narrow to me?
And it specifies the max tire size as 2.4” - I run 2.5” on the front?

I bought a set of their carbon fat rims last year and laced them myself. So far I like them. I only use them in winter and haven't taken them on any drop more than 1-2 feet. I saved some weight over my old mulefut wheels. Plus no more having to mess with rim strips and pin joints/holes for tubeless setup.

Now that someone got one I'll spill the beans on mine. In a round about way I was able to get one earlier this year. I wish I was able to get the gloss black like Robin but had to settle for matte black. I have 1490 miles on it so far. I got the medium. I'm about 5'8.5" ( wingspan of 6 ft). I might have been able to get a large but I wasn't sure if the seatpost would be too long to run a dropper. I'm running 740mm bars and an 80mm -6 degree stem. I wish it had a little longer reach. Height wise I'm right on the edge between a medium and large and I have a long reach as stated above. But a frame with long reach is no good if the standover is too high for my legs

I built it up around a 120mm Sid Ultimate. It's last year's with the 32mm stanchion. The shock is a 165x45 fox nude from a 2017 Scott Spark 920. The rest of the components were budget buys.

Drivetrain:sram gx eagle
Crank: raceface affect
BB: wheels MFG thread together
Brakes: Shimano deore xt
Rotors: Shimano rt66
Bars: yeti carbon
Wheels: Mercury EnduroX3
Tires: Vittoria Barzo-front, Mezcal-rear, both 29x2.3
Dropper: OneUp V2 120mm
Seat: Specialized Power Arc expert
Dropper remote: Wolftooth barcentric
Suspension remote: Scott twinloc
I forgot to weigh the frame before I built it up. I think it sits about 26lbs without pedals.

So far I like it.  It pedals pretty good. I wish the bottom bracket was higher because I get some pedal strikes. I have it set up with about 10mm of sag on the shock so I probably can't get it much higher.  I spend most time with it in the middle shock position so 80mm travel. Not much pedal bob when I'm pedaling normal. Standing up and mashing there is some. I lock out the shock and fork on flats or smooth climbs when possible. I'll open it up for full ~115mm rear travel on rough stuff and when taking larger jumps and drops.

It's my first carbon frame. It feels pretty stiff but I'm only 142lbs so I'm light. I took it all apart when I got it and packed grease in all the bearings and then torqued everything to spec with blue loctite. I have a creak that I think is dirt in the seatpost otherwise the suspension is quiet. I bent a derailleur hanger when I crashed and then broke it when trying to straighten it. I had 1 extra so I ordered a couple more. I sheared the head off a suspension bolt somewhere around 800 miles so I ordered backup hardware.

You're talking about the Hongfu I guess ? Indeed BB height was low but similar to Scott Spark.
For the LCFS917, I just add its geometry in "geometrygeeks.bike" and compared to Trail bikes in 120mm (Oiz TR, Epic Evo, Spark 120) its BB is higher than these ones, that are also mounted in 100/100 setup, so not a problem in my opinion for LCFS917.

Remind me to answer once you have your frame in hand

The hongfu FM258 was really cool, but without trunnion mount and geometry is less modern as two others.
I find the Carbonda a little to extreme, so this LightCarbon is a really good compromise for me.
I stumbled across the photo of this bike which I really liked (I'm not talking about paintjob...), and after a lot of research I discovered that it was about this frame. It is therefore mounted in 100/100 and that does not seem to degrade the geometry.

Even set up 120/120 the bottom bracket is pretty low and I get pedal strikes.  I would think going 100/100 would make it worse.  If you go 100/100 I would recommend going with a 165mm or 170mm crank.  If you want low travel maybe run 100mm rear and 120mm up front to keep the bottom bracket higher 

I followed a link in the LCFS947 thread and ended up at some site in the Netherlands. LCFS917 looks to be available there. Jmcarbonframe.nl