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Bike part mentions in this video
FrameAltera G21 DB Gravel Bike Frameset
Created: July 18, 2025The reviewer states the full name for the frameset is the 'Ulio G21 Alterara gravel frame set' and later refers to it as the 'Altera' and 'Alterara'. They describe it as UCI approved, robust and strong, though not the lightest frame available. Key features highlighted include the T47 threaded bottom bracket, UDH compatibility, two storage compartments, mudguard/fender mounts, and clearance for up to 53mm tires. The reviewer compares it to the older Yolio G21 model, noting differences like the round seatpost, updated bottom bracket standard, and added storage. They praise the quality of the threads, prep work, and included manual, concluding it is a good option for a durable, bombproof gravel bike for off-road enjoyment rather than serious racing.
AI-Summary
Pros
- UCI approved frame and fork
- Robust and strong construction
- Nice chunky rear stays and dropouts
- T47 threaded bottom bracket (praised as a good industry choice)
- Clean threads with no overspray, grit, or dirt
- Two storage compartments with removable bags
- Mudguard/fender mounts
- Large tire clearance (53mm for 700c, 2.1 for 650b)
- UDH compatible
- Option for 1x or 2x drivetrain
- Ventilation holes in the bottom bracket area
- All prep work is done; parts go together well without specialist tools
- Excellent owner's manual with vital information and torque specs
- Available in multiple frame sizes (49, 52, 54, 56, 58, 60cm)
- Six-year standard warranty with a lifetime option available
- Good packaging for shipping
Cons
- Not the lightest frame out there
- The price is not the cheapest on the market
Key Points
- Full name: Ulio G21 Alterara gravel frame set
- UCI approved
- Color: Champagne
- Frame weight (size 56): 1320g
- Fork weight: 420g
- Bottom bracket: T47 threaded
- Seatpost: Round, 27.2mm
- Tire clearance: 53mm for 700c, 2.1 for 650b
- Headset bearings: 8mm (red) bottom, 7mm (black) top
- Steer diameter: 28.6
- Head tube: Straight, 1.5 inches
- Includes front and rear through axles
- Includes a chainstay guard (bash guard)
- Has two storage compartments
- Geometry: Head angle is slacker than the previous G21 model for more stability