LightCarbon Gravel bike build

[UprightMan]

Hello, I recently decided to try and build myself a bike. I did some research on various parts etc to try and put together something that should work but I still have some worries, specifically I am 180cm tall but have a small inseam of only 79cm. I am also a heavier rider at around 95-100kg. The wheelset and frame are rated at 120kg max, but people have warned me that it's still a lot of pressure on the bike and that I should consider going wider on the wheels and tires.

• 
  Frameset: LightCarbon LCG071S-PRO (52cm, UD Black Matte, T47 BB, incl. 100mm stem, seatpost, fork, and thru-axles)
• Wheelset: LightCarbon 40mm Carbon (26mm inner width, Ceramic bearings, 36T Ratchet, HG Freehub, Centerlock)
• Groupset: Wheeltop GeX (12-speed Wireless)
• Crankset: Senicx GR3
• Bottom Bracket: ZTTO T47-24i
• Cassette: Sunshine 12-Speed (11-50T, HG Spline)
• Chain: Shimano XT CN-M8100 (12-speed, 138-Link, w/ Quick Link)
• Rotors: 2x Shimano RT-CL800 Ice-Tech (160mm, Internal Serration)
• Handlebar: PRO Discover 20 Gravel (44cm, 31.8mm clamp)
• Pedals: Shimano PD-EH500 Explorer (Hybrid: SPD/Flat)
• Tires: 2x Tufo Gravel Thundero HD (700x44c, Skinwall, Tubeless-ready)

Any advice, did I mess anything up while researching the build?

[Nilist]

I'm doing almost exactly the same build currently 

Frameset: LightCarbon LCG071S-PRO (52cm, UD Black Matte, T47 BB, incl. 100mm stem, seatpost, fork, and thru-axles) - mine is chaemeleon color
Wheelset: LightCarbon 40mm Carbon (26mm inner width, Ceramic bearings, 36T Ratchet, HG Freehub, Centerlock) - Went for MicroSpline hub, see below
Groupset: Wheeltop GeX (12-speed Wireless) - Same (but I use Ultegra calipers)
Crankset: Senicx GR3 - Went for Thinkrider PP5 carbon with powermeter
Bottom Bracket: ZTTO T47-24i - same
Cassette: Sunshine 12-Speed (11-50T, HG Spline) - After my experience with a wobbly ZTTO 11-52t i went back to Shimano XT 10-51 MS spline. The build quality and the alluminium spider is SO much more sturdy
Chain: Shimano XT CN-M8100 (12-speed, 138-Link, w/ Quick Link) - same
Rotors: 2x Shimano RT-CL800 Ice-Tech (160mm, Internal Serration) - went for IIIPRO A2 ultralight 160mm half price
Handlebar: PRO Discover 20 Gravel (44cm, 31.8mm clamp) - got the integrated from Lightcarbon
Pedals: Shimano PD-EH500 Explorer (Hybrid: SPD/Flat) - Shimano PD-ES600 - no hybrid
Tires: 2x Tufo Gravel Thundero HD (700x44c, Skinwall, Tubeless-ready) - Goodyear Eagle F1 tubeless 700x32C for now, not going offroad yet

Biggest difference is to stick to Shimano , based on previous experience of a chinese MTB cassette...

[alfiomotrambo]

Crankset: Senicx GR3 - Went for Thinkrider PP5 carbon with powermeter

Biggest difference is to stick to Shimano , based on previous experience of a chinese MTB cassette...

Or you can get the magene Crank P515 https://it.aliexpress.com/item/1005010240665276.html

[learzi]

I'm doing almost exactly the same build currently 
Groupset: Wheeltop GeX (12-speed Wireless) - Same (but I use Ultegra calipers)
Crankset: Senicx GR3 - Went for Thinkrider PP5 carbon with powermeter
Bottom Bracket: ZTTO T47-24i - same

Hi! I'm actually very interested in your Senicx GR3 + ThinkRider PP5 setup.

I'm currently running a Shimano GRX FC-RX610-2 (172.5 mm, 46/30), which has a 47 mm chainline and Q-factor of 151 mm. I'm considering switching to a dual-sided PP5 power meter, but I don't want to significantly change the GRX geometry.

Could you clarify a few things about your setup?

• Which exact Senicx GR3 model/version and crank length are you using? Is it the GR3-B1 2x version?


• Are you using the Senicx crank arms with the PP5 spider, or are you using the ThinkRider carbon crank arms that come with the PP5?


• What bottom bracket and spindle/axle length are you using? I would prefer to stay with a 24 mm Shimano-style spindle/BB if possible.


• Did you need any spacers/washers? If so, where exactly did you put them (drive side, non-drive side, between the crank and spider/chainrings, etc.)?


• Do you know the actual chainline of your finished GR3 + PP5 setup? Even an approximate measurement would be very useful. I'm specifically trying to get close to 47 mm.


• What is the resulting Q-factor? If possible, could you also tell me the distance from each crank arm to the frame? I'm trying to retain approximately the GRX 151 mm Q-factor rather than ending up with a narrower road-bike stance.


• What chainrings are you using with the PP5? I'm looking for either 46/30 or 46/32, preferably a 110 BCD 4-bolt set.


• Did the front derailleur require any adjustment, and does shifting between 46T and 30/32T work normally?

Basically, I'm trying to figure out whether I can build a PP5 + compatible 170 mm crank + 46/30 or 46/32 setup with approximately the same 47 mm chainline and 151 mm Q-factor as GRX, rather than simply accepting the PP5's narrower geometry.

Any measurements or photos of the crank installed, especially around the bottom bracket and PP5 interface, would be hugely helpful. Thanks!