YoeleoUSA
Altera G21 DB Gravel Bike Frameset Artisan Black
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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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Ride the Future of Gravel with the Altera G21
Pro‑Flex Seatpost (27.2 mm round) improves trail comfort and makes upgrades or dropper post swaps easier.
ExploreBuilt for Adventure
The complete frameset includes the Altera G21 frame, fork, H21 integrated carbon handlebar (with stem options), and Pro‑Flex seatpost. Available in Champagne, Arctic Ice, Desert Brown, or custom paint.
Tire Clearance
The Altera is designed with a tire clearance of 700x53c, allowing for a wide range of tire options
Double Internal Storage
The Yoeleo Altera is designed with versatility in mind, featuring an innovative storage solution that enhances your ride. With a built-in storage compartment in the toptube and an additional downtube compartment complete with an organizer bag, you can effortlessly stow your tools and gear. Keep your essentials secure, accessible, and perfectly organized, whether you're on a casual ride or a long adventure.
All Terrain Capability
Any frame can take on any terrain, but Altera doesn't take on various terrain – it conquers all of them. Its robust construction and wide tire clearance allow it to run on anything, from smoothest roads to the toughest trails. Any frame can take on any terrain, but nothing like Altera does.
Understanding Our Product
Find answers to your questions about our product here:
Tire Compatibility
The G21 accommodates a 53c gravel tire or a 2.0 MTB 29 tire. Select the right tire to enhance your ride's performance and comfort based on the terrain you're tackling.
Chainring Options
- Single: Fits up to 42T for standard cranks and up to 44T for wide crank spindles.
- Double: Accommodates a maximum of 50-34T with a BB to Crank washer.
Bottom Bracket Specs
- Our G21 uses a BB T-47 inboard bearing. Choose based on your crank spindle size:
Shimano GRX Crank: T47 BB inboard bearing for a 24mm spindle. - SRAM DUB / DUB Wide Crank: T47 BB inboard bearing for SRAM DUB.
- SRAM GXP: T47 BB Inboard bearing for SRAM GXP.
Fork Customization
Opt for a fork with mounting holes for front panniers or choose a seamless fork for improved aerodynamics.
Stem and Handlebar Combo
Yes, you can use a stem and handlebar combo. We recommend our ST1 stem with the H25 handlebar for a seamless integration.
