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Description
carbon fiber gravel bike frame Best Bikepacking GravelSpecifications of Altera G21 UCI Approved Yes Parts Included G21 Frame, Fork, Handlebar, Seatpost Lead Time 45days Frame Size 45cm,49cm, 52cm, 54cm, 56cm, 58cm, 60cm Material High Modulus Toray 800 Carbon Fiber Color Artisan Black BB BB T 47 inboard bearing GRX crank: T47 BB inboard bearing for Shimano 24mm spindle size SRAM DUB DUB wide crank: T47 BB inboard bearing for SRAM DUB SRAM GXP: T47 BB inboard bearing for SRAM GXP BB Width 85. 5mm Headtube
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Specifications of Altera G21
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UCI Approved
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Yes
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Parts Included
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G21 Frame, Fork, Handlebar, Seatpost
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Lead Time
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45days
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Frame
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Size
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45cm,49cm, 52cm, 54cm, 56cm, 58cm, 60cm
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Material
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High Modulus Toray 800 Carbon Fiber
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Color
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Artisan Black
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BB
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BB T-47 inboard bearing
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- GRX crank: T47 BB inboard bearing for Shimano 24mm spindle size
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- SRAM DUB / DUB wide crank: T47 BB inboard bearing for SRAM DUB
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- SRAM GXP: T47 BB inboard bearing for SRAM GXP
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BB Width
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85.5mm
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Headtube
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Straight 1-1/2”
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Rear Dropout
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12*142 Thru Axle
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Rear Derailleur Hanger
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Universal Derailleur Hanger (UDH) - Replaceable
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Frame Weight
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Champagne 1170g (56cm)
Raw 1150g (56cm)
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Handlebar
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H21 carbon integrated handlebar
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Handlebar Size
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400mm, 420mm, 440mm
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Stem Size
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80mm, 90mm, 100mm, 110mm
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Handlebar Weight
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360+/-15g (420x90)
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Fork & Seatpost
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Fork
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1 1/8" - 1 1/2", 12*100 Thru Axle
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Fork Weight (Painted, 56cm frame)
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480g
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Seatpost Weight
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95.2g (without clamp)
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Seatpost Shape
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Round (27.2mm)
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Compatibility
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Chainring
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- Single: Max of 42t for normal crank spindle and 44t for wide crank spindle
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Brake Fitment
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Flat Mount Disc
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Cable Routing
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Internal
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Bottle Mounts
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4
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Mudguard Compatible
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Yes
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Cargo Rack Compatible
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Yes
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Max Tire Width
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700x53mm, 650Bx2.1” (single chainring setup)
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Accessories
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Handlebar Spacers
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- 3mm: 1PC
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- 5mm: 1PC
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- 10mm: 2PCS
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Headset Bearing Cap
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10mm: 1PC
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Front Axle
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1pc
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Rear Axle
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1pc
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Limited Rider Weight
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125KG
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Warranty
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6 Years
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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
4.3 ★★★★★
Based on 2181 reviews
Sort
Product Reviews
★★★★★ 4
Thin, but dont let that stop you from buying.
Soft, looks nice, and im a fan in general. The things i do want to address is that its pretty thin fabric, and that even when i ordered the smallest size it was just a tad to big all around. Decent enough for the money tho.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
★★★★★ 5
Light long sleeve
Nice fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026
★★★★★ 5
Design
Design and fit perfect
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 25, 2025
★★★★★ 3
Very Thin but NICE
This polo shirt is much thinner than expected. While the blue color is vibrant, it’s best worn with a layer underneath, such as a mock turtleneck. I recommend ordering a size up, as the viscose fabric tends to shrink more than cotton. For care, hand wash or place it in a mesh laundry bag and use a gentle cycle. Despite these considerations, the shirt is attractive and practical when properly cared for, and I may purchase another in a different color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2026
★★★★★ 5
Comfortable and Durable Shirt for the Fall and Winter!
What You Need To Know:
- Very Comfortable
- Love The Way The Shirt Fits
- No Fading from Washing (Warm)
- No Shrinkage Drying (Delicate)
I'm 6'3" with a long torso. Most of my height is from the waste up. For that reason, I usually only order XLT shirts. I need the extra length of the Tall shirts otherwise, the shirt is typically too short. The shirt was not offered in the XLT size so I decided to order the shirt in the XL size. This is one of the few XL sized shirts I've found that actually fits me! You'll see in the picture that it easily falls below my waist. In addition, I've washed and dried the shirt multiple times and it's held up well. I love the fact that the shirt is a pullover with a zipper instead of buttons. This shirt will definitely be in my rotation for those cool Fall days and all of Winter.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 21, 2025
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