Author Topic: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design  (Read 62942 times)

Adiex

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #60 on: April 16, 2026, 02:08:42 PM »
I ordered 26. Feb. Frame was ready for shipping 24. Mar and arrived in Norway 9. April
They had stock of both frame and fork at the time. But there was a queue for painting.

splintersneaker

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #61 on: May 04, 2026, 03:09:42 PM »
Small update from my end. Have ridden about 2000km on the bike so far, including the Traka 200 this past weekend. Bike performed flawlessly!

The front end (not sure whether it's the fork or head tube) is not the stiffest, but no problem for me. Wouldn't call it comfortable per se though. But it's difficult for me to compare, as this is my first gravel bike (having ridden road bikes and MTBs for many years). Rear appears to be quite comfortable.

Paint job is holding up well.
So far very happy with my purchase!

Shin56

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #62 on: May 08, 2026, 04:24:33 PM »
Just curious but asking anyone that has the frame already, did you try measuring what max size 1x chanring you can fit? will using the SRAM wide standard allow for more than advertised 42T? Im planning tu order a chainring soon and wondering if its possible to push a bit further than Lightcarbon claims is max possible.

Also saw a few posts on 071-Pro forum about that frame feeling pretty slow during sprints and descents so if anyone would be able to elaborate and describe their experience with 074-D it would be great.

Thanks.

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #63 on: May 09, 2026, 12:47:05 PM »
Just curious but asking anyone that has the frame already, did you try measuring what max size 1x chanring you can fit? will using the SRAM wide standard allow for more than advertised 42T? Im planning tu order a chainring soon and wondering if its possible to push a bit further than Lightcarbon claims is max possible.

I have dub wide spindle on mine and have it fit with a 42t. I wouldn’t push it any bigger as the gap to the chainstay is pretty tight.

adrpos

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #64 on: June 11, 2026, 05:52:57 PM »
It seems tighter down the tube than on top. Lightcarbon has responded and they are sending me a new seatpost with slightly larger diameter.
I have built the bike now and done two test rides, both with original seatpost and Canyon Ergon seatpost and it doesn't seem to slip.

Here are some photos of the bike

can you post photos of the rear tire fitment? I'm seeing conflicting reports of 50mm width tires clearing the pivot mechanism and I'm wondering if wider internal rims allow the tire profile to be lower and thus improve clearance.

Shin56

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #65 on: June 12, 2026, 01:39:51 PM »
can you post photos of the rear tire fitment? I'm seeing conflicting reports of 50mm width tires clearing the pivot mechanism and I'm wondering if wider internal rims allow the tire profile to be lower and thus improve clearance.

Im currently using 45mm pathfinders on 32mm internal rim width, i tried taking some pics for you to the best of my ability but imo the limiting factor is the clearance on down triangle arms not the pivot mechanism. The wheels im using are elitewheels gravel aero+.

 The attached pictures are:
-clearance from pivot mechanism arm
- clearance from down tube on rear triangle(non drive side)
- Pic for visual clearance
- total tire width
« Last Edit: June 12, 2026, 01:42:39 PM by Shin56 »

Shin56

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #66 on: June 12, 2026, 02:20:30 PM »
Finally received my frame after around 2 months since order time. I ordered exactly on 27th of march and recieved order comfirmation the same day. I ordered size 55 with Cema ceramic bearing BB, SP03 seatpost, and 420/90mm handlebars. After around a month and a half i recieved an information that frame, fork and seatpost are ready but handlebar production would take another month so i swapped to 420/100mm and recieved the frame 1st of june, total price was around 890$ including all fees and delivery to Poland. The build was pretty straightforward and I only had problems with internal cable routing as left side cable hole had very tight tolerances and required a lot of effort, I alos plan to cut my seatpost shorter as the included one is way too long for this frame.

I used aliexpress for majority of my other parts and below is the total list of them with prices that include shipping and taxes:
-Frame: Lightcarbon LCG074D size 55 (890$)
-Seatpost: SP03 model included with frame
-Handlebars: included with frame in size 420/100
-BB: Cema brand ceramic BB purchased from lightcarbon
-Groupset: Ltwoo egr electronic groupset from 80 designer store (300$)
- Wheels: Elitewheels gravel aero+(500$)
- Disc brake rotors: VXM rotors from aliexpress(12$ each)
- Cassette: Goldix 11 speed 11-42T(25$ leftover from my trainer and used with old bike intending to finish it off before swapping to 12 speed)
- Chain: Shimano ultegra 11 speed chain(20$)
- Seat: RYET carbon seat(31$)
- Bar tape: Supacaz violet-blue color(23$)
- Tires: Specs pathfinders TLR 45mm black sidewall(47$ each)
- Cranks: Shimano grx 610 1x 40T crankset(74$)
- Pedals: Shimano M520 spd pedals(24$)
-Misc itesm: Batteries for shifter, batteries for RD, mr.ducky, chainstay guard(30$)

Total cost: around 2000$
Total weight:8,5kg(pedals and bike computer mount included)

Majority of parts were bought on various discounts and with coupons while waiting for the frame, only managed to get around 150km on this bike atm.

Overall the ride feels great, you can feel the micro suspension work especially on rougher terrains but it makes the front fork feel quite stiff in comparison. I had some problems with seatpost and handlebar screws slightly loosening but it only happened for first 2 rides and stopped afterwards. Still planning to change a few things around the bike but frame size 55 feels very good for 182cm height, I would love to see them ship with shorter seatpost but that is something i can always cut off so no real issues there.

For total weight of each component
Frame: 1250g
seatpost: 250g
handelbars: 450g
fork: 550g


I will also post few more bits of information that might help people:
All rightcarbon tourque values are for dry conditions but they do include locktite on majority of their screws from what i could tell.
45mm tire feels just right and 50mm might be very close to pushing the limits so i would recommend going 48mm max if you plan to ride in muddier conditions.
With 40T 1x chainring i seem to have around 13-14ishmm distance from the frame but im not sure how much realistically the frame flexes with micro suspension and how far it can be pushed
Downtube storage area is extremely narrow so not much will fit in there(i had troubles putting more than spare TPU tube and patchkit in the included bag, my multitool was too wide and my pump too long and made the bag too stiff to insert back)

« Last Edit: June 13, 2026, 05:38:26 AM by Shin56 »

adrpos

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #67 on: June 13, 2026, 11:24:00 AM »
Im currently using 45mm pathfinders on 32mm internal rim width, i tried taking some pics for you to the best of my ability but imo the limiting factor is the clearance on down triangle arms not the pivot mechanism. The wheels im using are elitewheels gravel aero+.

 The attached pictures are:
-clearance from pivot mechanism arm
- clearance from down tube on rear triangle(non drive side)
- Pic for visual clearance
- total tire width
so based on 8mm clearance for 45.5 as measured, then 53mm as measured should fit with a standard 4mm of clearance?

Shin56

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #68 on: June 13, 2026, 06:01:43 PM »
so based on 8mm clearance for 45.5 as measured, then 53mm as measured should fit with a standard 4mm of clearance?

I don't want to state any facts as I have not tested wider tires than my current 45mm, but depending on how tire fits it might? also depends on how high the knobs are on the tire.

Based on my current setup it seems 50 will work and 53 might? but that would be pretty tight fit. Also i will mention that LCG071D when it was first introduced offered up to 53mm tire support that was later reduced to 50mm once they added T47 and UDH upgrade, and LCG074D is based on 071D but with just micro suspension. So it might work but again it is just based on some anecdotal information and few simple measurements based on my size 55 frame. Smaller sizes might also have slightly lower tolerances but i cannot verify that information without any evidence atm but i think its worth keeping in mind.

jeffrey

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #69 on: July 08, 2026, 06:46:44 AM »
I'm under the urge to buy this frame and build it with a suspension fork.
Please discourage me  ;D

Glenn0010

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #70 on: July 08, 2026, 07:23:07 AM »
I'm under the urge to buy this frame and build it with a suspension fork.
Please discourage me  ;D

I don't think you'll be able too as this frame has a  1 1/2 inch straight steerer tube, most suspension forks are tapered as far as im aware.

jeffrey

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #71 on: July 08, 2026, 02:20:19 PM »
I don't think you'll be able too as this frame has a  1 1/2 inch straight steerer tube, most suspension forks are tapered as far as im aware.

But isn't that the standard thing to have the internal cable routing?
Wide bearing on top with the C ring so cables can run trough it.

jeffrey

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #72 on: July 11, 2026, 09:12:36 AM »
Just playing around with geometry and Gemini ;D

I compared the frame with a 40mm Kocevlo fork (roughly) to my current bike, geometry ends up kind of similar but further back from the BB, shouldn't be a huge issue with a 0 offset seatpost

kbernstein

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #73 on: July 11, 2026, 01:19:48 PM »
i really don't think gemini could be trusted with geometry sketches

jeffrey

Re: LightCarbon Gravel LCG074-D Micro Suspension Pivot Design
« Reply #74 on: July 11, 2026, 02:35:38 PM »
i really don't think gemini could be trusted with geometry sketches

Oh surely not! That's from bike-stats.de