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Messages - flimay2k9

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1
29er / Re: Lightcarbon LCFS937 Build
« on: June 28, 2019, 10:41:50 AM »
Well took me a while to write back, I got banned again for some reason or I can't login, so I'm using a different name.

I've been traveling for work and it took me some time to finally get the bike together and get a chance to go outside and ride the bike. Everything was going fine until last week, after a short ride I got back and inspect the bike and guess what I found:



Yes, same place, same type of damage. I'm a heavy rider, 220 lbs and 6'2" so maybe I'm too heavy for the frame, but the fact is that it cracked in the same location and same way. I was beyond frustrated and annoyed, could not even look at the bike for a few days and thought about scrapping it.

Here's the first frame, that took more damage because I rode the bike with the crack to see if it was still usable and the crack spread.



Now the two side by side:



I have no confidence in riding the bike with this frame again.

I see two options for now, either get another frame and transfer everything and I'd be very limited as I bought all my parts specifically for this frame, or try to repair it.

I'm tempted to go with the second option and try to repair with a much sturdier layup of carbon even if it does not look good in the end. I'll send the pictures and get quotes, but I know this will cost as much as a new front triangle possibly, so I need to be careful with my decision.

Any recommendations?





 


2
29er / Re: Lightcarbon LCFS937 Build
« on: April 19, 2019, 02:10:49 PM »
After travelling for work for some time I finally got all the little parts I needed and finished putting the bike together. I was waiting on my magura shiftmix parts (pretty expensive @ $60) to have a cleaner cockpit, looks pretty good tough. Weight is coming at 27 lbs, not too bad for a bike I did not really tried to save weight.

List of parts:

Lightcarbon LCFS937 frame
Lightcarbon carbon 33mm wheels with DT 350 straight pull hubs
Rockshox Yari 140mm fork
Rockshox Delux RT3 trunnion 42,5 mm travel
Rockshox stealth Reverb 390mm and 125mm drop with X1 remote
Sram 1x12 Eagle GX drivetrain
Magura MT Sport brakes with 180mm rotors
Raceface aeffect 50mm stem
BZA 35mm carbon handlebar 800mm
Canecreek Slamset headset
Maxxis Ikon 2.25 on the back and Ardent 2.4 on the front

Here's a couple of details:






And the bike completed:



I love how the bike rides and how everything went together really nicely, love that I don't need adapters for 180mm rotors.

But not everything is pretty, after a couple of quick rides around my house on fairly flat terrain I noticed a little crack on the frame, after another quick ride it got worse, so now the bike was deemed unsafe and I'm working with John from Lightcarbon on a warranty claim. He's being pretty responsible so far, so I'll keep you guys posted.





I can actually feel the seat tube wall that goes around the rear shock is pretty thin where it failed, so hopefully this is an isolated issue. The only problem is to wait at least another 3 or 4 weeks to ride the bike, and then reassemble everything.



3
29er / Re: Lightcarbon LCFS937 Build
« on: April 04, 2019, 09:39:57 PM »
Your painted frame looks pretty good. I'm regretting not having it painted, but it's too late for me now, maybe the next one.

My rear sock is a Deluxe RT3 165x42.5mm I got it used for $100 on ebay, I think that will work well. I might upgrade in the future. Got my 3 piece hardware, I actually bought 22x8mm from Amazon, I measured with a caliper and I thought that was the right size, it went together perfectly. I ended up having to buy a new 1/2" bushing and had to buy an extractor/installer for the bushing, it was pretty hard to get that little thing installed, even with the correct tool, it was super tight. But everything looks good now. I hope I have enough space to fill the air on the shock without having to disassemble it from the frame.



A close up on the hardware installed, everything got torqued to specs.



I've been fighting with my tubeless tires for the last 3 days my sidewalls are still leaking some air, I just added some extra sealant and it seems to be getting better, but I can still see some seepage of sealant in a lot of places on the sidewall.

Tomorrow I'll get my headset spacers and I'll be able to cut and install my fork, looking pretty good so far, if I get the wheels to stop leaking air, I'll get them mounted as well and will start to work on the drivetrain.

4
29er / Re: Lightcarbon LCFS937 Build
« on: March 28, 2019, 06:54:19 PM »
Added grease to the bearings and thread lock to the bolts, it's pretty smooth now, tight fit on everything.

I removed the bearing that was not good by gently tapping with a flat screw driver and a small hammer and the bearing turned out to be fine, I think it was just not sitting right.

Next step is to figure out what size of hardware I need for the rear shock mount.

Installed the BSA bottom bracket, the chain guide and the crank set. All went in pretty well. I like the chain guide and crank protection as well.



I'm not really very happy with how close the chain ring is to the chain stay, looks like a bad design.



Got the tubeless tires mounted, just need to add the sealant. I'll be running 2.4 Maxxis Andent in the front wheel and 2.2 Ikon on the back, I might change that later, I wanted some better cushion and grip in the front. Let's see.





5
29er / Re: Lightcarbon LCFS937 Build
« on: March 28, 2019, 01:34:08 PM »
I disassembled the linkage to check the hardware and found out the hardware is not bad. But the bearing are not very good, one of the bearings is binding a little bit and clicking, I removed one of the seals and there's no grease on the bearings, so I'll add some. I actually tried to pull one of the bearings out and I wasn't able to. No sure what kind of tool I'd need to do that.

Frame is 19" (Large) it does seam small for now, so let's see how this works out.

My next step will be to add some grease to the bearings and bushings and put it all together with the correct torque.

Rear triangle seems to be carbon as well.









6
29er / Re: Lightcarbon LCFS937 Build
« on: March 27, 2019, 10:58:03 PM »
Ok, here's some pictures I took of the frame and wheelset. The frame weight is 2.280g so not too bad.

I do have a few questions on the frame though, should I clear coat or paint for protection?

The other question is, should I disassemble the linkage and check bearings add grease and check for torque? The hardware on the linkage looks pretty cheap, I'd love to get it replaced for better quality parts, but do not know the sizes or where to buy it.

The last time I worked on a bike was over 10 years ago so I'll have a few questions along the way, I just checked my bottom bracket and crank and they fit, I also checked my headset bearing and they fit as well, so I'm happy with that.



The rear shock mount is quite unusual, not sure I like it.



The surface of the carbon has a lot of marks from the form, but I think this is normal, right?



And the wheelset




7
29er / Lightcarbon LCFS937 Build
« on: March 26, 2019, 04:53:27 PM »
Just received My frame and a wheelset from Lightcarbon, will unpack and take pics later tonight.

I have almost all the parts to start the build and have a few questions as well.

I'll share the progress here as well.

For some strange reason I registered yesterday night and got banned without even posting anything, so I hope that does not happen again.

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