YoeleoUSA
Altera G21 Complete Bike - Altera G21 Di2 1*12, Yoeleo C45 DB Pro NxT Gravel
The Yoeleo Altera G21 Di2 Complete Bike redefines carbon gravel performance with electronic precision and all-terrain versatility. Built on the UCI-approved G21 Toray 800 carbon frame, this lightweight gravel bike features the Shimano GRX 825 Di2 1×12 drivetrain for smooth, effortless shifting and Yoeleo C45 DB Pro NxT SL2 gravel wheels for superior traction and speed. Designed for endurance and adventure, the Altera G21 Di2 is the ultimate carbon gravel bike for riders who demand performance beyond the road.
Frame Size: 45cm,49cm, 52cm, 54cm, 56cm, 58cm, 60cm
Color: Champagne / Custom Painting
UCI Approved: Yes
Frame:
YOELEO G21 Gravel Frame Altera 2025
Material: High Modulus Toray 800 Carbon Fiber
Rear Dropout: 12*142mm Through Axle
Rear Derailleur Hook: Replaceable
Weight: 980g+/-50g (49cm)
Fork
YOELEO G21 Fork
Material: Carbon
Head Tube: 1-1/2" Straight
Axle Dimension: 12 x 100 mm
Brake: Flat Mount
Weight: 420g+/-15g
Handlebar
YOELEO H21 Handlebar
Handlebar Size: 400mm/420mm/440mm
Stem Size: 80mm/90mm/100mm/110mm/120mm
Weight: 340g+/-15g (420x90)
Groupset
Shimano GRX 825 Di2 1*12s
Rear Derailleur: Sram Rival XPLR AXS Rear Derailleur
Crank: Sram Rival 1 wide Crankset 170mm
Cassette: Sram Rival 10-46T
Chain: Sram Rival Chain 12spd
Brake: Sram Rival Calipers
Rotor: Front 160mm/Rear 160mm
Wheelset
SAT C45 DB PRO NXT SL2 GRAVEL
Thru Axle: 12*100/12*142
KENDA Tires 700*45C
Limited Rider Weight: 110KG
Warranty: 6 Years
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.
