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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
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Description
gravel bike shimano grx Colnago G3-X Shimano GRX 820 2x12 Gravel Bike G3G2 Green 58s – Velo MineThe Colnago racing soul triumphs on dirt roads with the Colnago G3 X Shimano GRX 820 2x12, the gravel bike for tackling any type of terrain in any season, designed for riding on dirt and muddy terrain, comfortable even over long distances. The G3 X is made with a carbon monocoque frame and fitted with disc brakes. Plus the chain stays are wide enough to fit tires up to a maximum of 42 millimeters. The G3 X is equipped with two protective plastic
The Colnago racing soul triumphs on dirt roads with the Colnago G3-X Shimano GRX 820 2x12, the gravel bike for tackling any type of terrain in any season, designed for riding on dirt and muddy terrain, comfortable even over long distances. The G3-X is made with a carbon monocoque frame and fitted with disc brakes. Plus the chain stays are wide enough to fit tires up to a maximum of 42 millimeters.
The G3-X is equipped with two protective plastic mudguards: one under the bottom bracket and one above the right chainstay to protect the chain from blows. And since longer adventures may require additional bags and bottle cages, the G3-X is equipped with two extra rivet pairs on the top tube and under the down tube.
Frame kit
- Frame (material): Monocoque carbon.
- Fork (material, section notes): Carbon fork for disc brakes, external cables, section with round circumference.
- Headset: ID30,1 OD41 36°/45° ID40 OD52 45°/45°.
- Seatpost: Carbon seatpost, 0.15 offset, "D-Shape" section.
- Through axles: Diameter: 12 mm. length 100 mm (front) - 142 mm (rear).
Drivetrain
- Shifting system: Shimano GRX 820 2x.
- Front derailleur: Shimano GRX 2x: Shimano FD-RX820.
- Rear derailleur: Shimano GRX 2x: Shimano RD-RX820.
- Chain: Shimano GRX: Shimano CN-M8100 12V.
- Crankset: Shimano GRX 2x: 48-31T.
- Cassette: Shimano GRX 2x: 11-36 12v.
- Bottom bracket: Shimano SM-BB72-41B Press Fit Movement 86.5x41.
- Crank length: Sizes 42s - 48s: 170 mm, Sizes 50s - 54s: 172.5 mm, Sizes 56s - 58s: 175 mm
Brakes
- Brakes: Shimano RX-820, 160 mm Front / 160 mm Rear, RT-MT800-S rotors.
- Disc size: 160 mm Front/ 160 mm Rear.
- Brake lever: Shimano ST-RX820.
- Brake caliper: Shimano RX-820.
Wheels
- Wheels: Shimano WH-RS370
- Material: Rims: aluminum, Spokes: stainless steel.
- Rim height: Front: 19 mm; Rear: 19 mm.
- Internal channel width: 19 mm.
- Hubs: Aluminum, Sealed Cartridge Bearings.
- Through axles: Front: HH12-100 - Rear: HH12-142.
- Tires: Pirelli Cinturato Gravel H 40 TLR.
- Maximum tire size: 42 mm (nominal width).
Components
- Saddle: Prologo Kappa BK, Selle Italia" Model X BB FEC
- Handlebar: Deda Gravel 100; Sizes 46s: Width: 400 mm, Sizes 49s - 55s: Width: 420 mm, Sizes 58s: Width: 440 mm
- Stem: Deda ZERO1; Size 46s: Length: 90 mm, Size 49s: Length: 100 mm, Sizes 52s - 55s: Length: 110 mm, Sizes 58s: Length: 120 mm
- Handlebar Tape: Colnago Grip Black
- Bottle cage: Colnago Matte Black (1x)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
this is my go to when needing new underwear.
Size: 3X-Large, Color: Black/Navy/Dark Purple/Red
Love these boyshorts for women. They're so comfortable, no crawling and breathable. I recommend for plus size women who has legs rubbing together causing irritation. Nice price as well. This is my go to when needing new underwear.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Great!
Size: Small, Color: Black/Heather Gray/White/Nude
Comfy, good fit, good quality cotton and flat seams around the crotch. Normal size small. I wouldn’t wear these with yoga pants, but nice under looser fitting garments. I would buy more colors.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
There is a seam up the front. I think perhaps it being seamless would be better.
Size: Medium, Color: Black
Like anything off Amazon I wasnt expecting anything perfect and ready to have to mail it back.
Pleasantly surprised by the softness and durability. The waist band isn't to small on a medium so it fits actually so comfy.
I wear them as underwear and as shorts for my skirts n dresses.
Id recommend but I say size up if you want a comfy fit. But down if you want a fitted fit fit. Comfy still is fitted but better feeling on if that makes sense.
Also the crotch of the shorts/undies has essentially extra fabric sewed in creating that nice comfort. Ill snag a photo when I have time.
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Product varies from package to package
Size: X-Large, Color: Black/Navy/Dark Purple/Red
Over a two year period this is my 4th purchase. They started as sleep shorts and have replaced other underwear most of the time because they are comfortable and the quality is pretty good. However there are differences in between every package. The length has varied up to an inch, the material has changed, and some are slightly tighter than others. That said it works for me. I am a side sleeper and sometimes the side seam bothers me.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Very comfortable in the Texas heat.
Size: Small, Color: Black/Navy/Dark Purple/Red
I got some of these as a gift and I loved them so much I purchased two more packs. I just opened my new packs and put them in the washer so I'm not leaving a photo. When I wear them they look exactly like they do on the models.
I've been doing a lot of heavy outdoor work in the heat and I get drenched. These underwear have a 100% cotton crotch and the rest is 95% cotton and 5% spandex. When I first saw the wide crotch I didn't think I would like it. But these are soooo comfortable. I'm 4'11" and weight 108-112 and the size small fits loosly but well. I could probably get away with an XS but I like this loose and not too tight fit. I see some folks say these roll up. They don't roll up on me. I think they might roll if they were tight fitting. I have lots of other undergarments like these and some roll and some don't. But none of the others are cotton. They are mostly spandex and since I've found these in cotton that's all I'm wearing until summer is over. I can't feel them or see them under pants or skirts.
These look more like shorts than underwear and they have a very nice thickness. Since I only had four pair to begin with, those got washed and dryed a lot. I can't tell if they shrunk since I only tried them after washing. Sorry I forgot to compare the size of the new ones to the older ones before I threw them in the washer. I'll probably buy another set and compare at that time. One thing I can report is that they do not fade at all. I just washed the black, purple and red colors with the white color and the white is still completely white.
Now I have more colors and I'll probably be walking around in my underwear and no one will know.
The only con I can think of is the wide crotch wouldn't work well with pads with wings, in my opinion.
Try a size larger for a nice cool pair of sleeping shorts to see how they fit while they are on sale. Then go smaller if needed. I think you might enjoy these.
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Reviewed in the United States on July 10, 2024