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I first saw the Lightcarbon LCR18D at Eurobike 2025. It reminded me of SEKA Spear due to its WindEye-like seatstay structure. However, LCR18D was intended to be an adventure road bike, because it offers a bit more relaxed geometry and a wider tire clearance.
In this article, I interviewed one of its owners, who shared his experience with it. He spent over half a year researching what he wanted to build and how much he wanted to spend. Michal decided to give Lightcarbon a try because most Western brands are manufactured in China anyway. So, what are his experiences?
KEY TAKEAWAY
The Lightcarbon LCR18D build process was surprisingly smooth, and no modifications (such as to brake caliper mounts) were required. Michal only experienced one issue with a slipping seatpost, but he solved it by properly cleaning the seatpost and applying a carbon paste. He describes it as one of the most comfortable, yet agile bikes he has ever ridden. Considering the price-to-value ratio, he would recommend it if you are looking for an all-around road bike.
Lightcarbon LCR18D Build Summary
Below are the technical specifications of Michal’s build. Remember, he is 193 cm tall and has 93 cm inseam.
Technical Specifications
- Weight (size XL): 8.6 kg [with pedals, hidden compartment, and bottle cages], 8.35kg without pedals
- Frame and fork weight: 1196g [size 58], fork 463g
- Seatpost weight: 191g (Lightcarbon custom, 0mm offset)
- Wheels: Novatec R4 carbon (1646g)
- Groupset: Shimano 105 2×12 (mechanical)
- Cassette: Shimano 105 11/36T (380g)
- Chainrings: 52–36T
- Cranks: Shimano Ultegra FC-R8100 2×12 175 mm (719g)
- Handlebar: Lightcarbon HBR17, 120×440 mm (341g)
- Tires: Schwalbe One TLE Addix 28″ Folding Tire 32mm (380g/pc)
- Pedals: Zeray ZP-108S (263g)
- Brake rotors: VXM 160mm (142g)
- Bottom bracket: T47 Kocvelo (133g)
- Overall price: 1550 EUR (1790 USD) after all discounts, 2500 EUR (~2880 USD) without discounts
Lightcarbon LCR18D Pros and Cons
Lightcarbon LCR18D Pros
- Very comfortable
- Great stiffness in sprints
- The frame can handle 40mm tires (front 45mm)
- Easy to build
- Frame compartment (optional)
- More than 500 custom colors [Pantone]
- Affordable (950 USD for the whole frameset with custom paint, 850 USD glossy or matte finish)
- A lot of handlebars variations
Lightcarbon LCR18D Cons
- Proprietary thru axle [included in package]
- The T47 bottom bracket requires a specific tool
- Costly shipping (144 USD for a pair of wheels, 165 USD for a frameset, 229 USD for two framesets), but no additional import fees
- The seatpost screw does not have enough space for on-the-go adjustment
- The seatpost could slip with the recommended torque
The Build Process
The whole build was the easiest I’ve ever done. Previous custom bikes, such as Cannondale, Rose, Cube, and Mondraker, were more complicated. Everything fits exactly as it should without requiring Loctite glue or any adjustments. Internal routing took a while due to the mechanical groupset and two cables, which wouldn’t be present with SRAM AXS. But there are some reasons why I chose mechanical shifting: reliability.
The challenging part was mounting the T47 bottom bracket. The threads are perfectly aligned, but you need a special tool for this type of bottom bracket, and I had to buy a few different ones. The good news is that Lightcarbon has changed the package contents, and the bottom bracket is now included. You can simply ask them which wrench you need for it.
I found some forum posts claiming the brake caliper mounting point was misaligned. In my case, this wasn’t true; it was plug-and-play. I didn’t have to adjust it.
In the package, you will receive all accessories for your cockpit: headset bearings, spacers, a compression plug, a computer mount with adapters for various devices (Garmin, Wahoo, GoPro, etc.), and a top cap. Don’t worry about spacers; you will receive more than you need, but you can always ask them to include some extras in your package.
I experienced seatpost slipping at first. This was because the recommended torque (8Nm) was insufficient to hold the seatpost in place. To prevent slipping, use 9-10Nm. This torque was also approved by Lightcarbon after the discussion. However, there is a simple solution: clean the seatpost, seat tube, and seatpost clamp with isopropyl alcohol. Then cover all of them with carbon paste, but not too much. Applying carbon paste to the seatpost clamp was the game-changer. Since then, I haven’t had any issues with slipping.
Lightcarbon LCR18D Ride Impressions
It’s not the fastest bike, but it’s definitely more comfortable than my previous bike—the Rose Backroad Carbon. The Rose was made of high modulus carbon and was stiff but not comfortable. This LCR18 is made from T800, T1100, and M60J, all of which are high modulus carbon. Winspace uses a similar carbon in some of their frames.
Since the build was completed, I’ve been testing the handlebar and frame stiffness on every ride, and I am always surprised by how stiff this frame is and how well it handles vibrations. With 110 kg and 1000W of power, it’s quite a stress test, but the bike’s behavior is amazing. My previous bikes were either pure gravel bikes or cyclocross bikes. It’s hard to compare the handling in the corners, but I am much faster now. After all the kilometers I’ve ridden on the LCR18, I can say it’s pretty agile and responsive. If someone wants stiffness without compromise, they can order a frame without the additional compartment in the down tube.
The other reason I chose the LCR18 was that riding a gravel bike was always about compromise: being slow on the road, a lack of gears on steep climbs, weak brakes (160mm 2-piston vs. 200mm 4-piston on the MTB), and poor grip off-road. So many times, I told myself, “I should bring my mountain bike.”
The LCR18 offers me a modern design and a comfortable ride on tarmac and gravel paths. If you don’t want to use your road tires, you can simply swap them for 38mm gravel tires (40mm tires fit without issues). With this combination, you can have an endurance road bike or a race gravel bike, which opens up a new perspective on cycling.
Michal’s Verdict
If you want one bike for everything, the LCR18 is a great choice. You can use it for weekend-long rides or fast weekday routes. It is a custom build with excellent quality and a sharp design. You can ride on tarmac and even take shortcuts on gravel paths. The LCR18 is truly unique and won’t break your bank. This is my first Chinese bike build, and it certainly won’t be my last.