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Yoeleo Altera G21 DB
Frame

Yoeleo Altera G21 DB

Weight1170g
Year2021
CategoryFrame

The Yoeleo Altera G21 DB is a well-regarded gravel frameset praised for its robust construction, generous tire clearance, and thoughtful details like T47 bottom bracket, UDH hanger, and internal storage. While not the lightest frame, it offers excellent value and a premium feel, though some reviewers note limitations in storage size and chainring clearance.

Pros

  • Excellent tire clearance, accommodating up to 53mm tires on 700c and 2.1 inches on 650b.123
  • T47 threaded bottom bracket for easy maintenance and compatibility.124
  • UDH hanger compatibility for modern drivetrains.124
  • Internal storage compartments in top tube and down tube.23
  • Round 27.2mm seatpost for easy upgrades and added compliance.125
  • High-quality paint and finish, comparable to premium Western brands.267
  • Multiple mounting points for bottles, racks, and fenders.123
  • Excellent packaging and included accessories like computer mount and manual.246
  • Custom paint options available.147
  • Six-year warranty with lifetime option.13

Cons

  • Not the lightest frame; weights range from 1,170g to 1,400g depending on size.435
  • Internal storage bags are small and not quick-access for race-critical tools.426
  • Chainring clearance limited; 46t is tight, 44t recommended.65
  • Some toe overlap may still occur for smaller riders with large tires.51
  • Fork expander system and front brake alignment not ideal.4
  • Limited handlebar options (only 40cm width, 110mm stem) with aggressive flare.6
  • Potential issues with T47 BB installation due to narrow flanges.7
  • Custom paint adds at least 4 weeks to delivery.7

Key Facts

  • Frame weight ranges from 1,170g to 1,400g depending on size and measurement method.526
  • Tire clearance up to 700x53c or 650Bx2.1 inches.123
  • T47 threaded bottom bracket with 86.6mm width.243
  • UDH (Universal Derailleur Hanger) compatible.124
  • Round 27.2mm seatpost.123
  • Available in seven sizes (45-60cm).53
  • UCI approved frame and fork.37
  • T800 carbon construction.5

Reviews & Ratings

Tom Bowers Cycling
16:56
This Chinese Frame Feels More Premium Than Most Western Brands

The Yoeleo Altera G21 DB frame is praised for its high-quality paint job, excellent packaging, and thoughtful details like internal storage and a round seatpost. The reviewer notes it feels like a frame over twice its price, with a weight of 1.33 kg (without accessories) and a complete build weight of 8.78 kg. The frame offers ample tire clearance and is built for durability, though the weight is not groundbreaking. The reviewer plans to race on it in major gravel events.

August 20, 2026Watch on YouTube
China Cycling
22:49
The People's Gravel Bike: Yoeleo G21 Altera

The reviewer provides a detailed analysis of the Yolio Alterara G21 gravel bike frameset, which is the third generation of their gravel frame. They discuss the updates from previous versions, including the addition of in-frame storage, a switch to a 27.2mm round seatpost for more compliance, full UDH compatibility, T47 bottom bracket with inboard bearings, and tweaked geometry to address toe overlap in larger sizes. The frame is made from T800 carbon, which the reviewer notes is durable though not the lightest, and is available in seven sizes. They highlight the excellent packaging and included accessories, versatile build options, and competitive pricing.

September 25, 2025Watch on YouTube
oz cycle
23:02
Yoeleo G21 Altera - bombproof & Huge tyre clearance

The 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.

August 24, 2025Watch on YouTube
Peak Torque
21:12
DID I BUILD ULTIMATE GRAVEL BIKE?!

The reviewer discusses the YOELEO Altera G21 DB Gravel Bike Frameset extensively, comparing it to its previous generation and highlighting improvements and remaining issues. They note that the new version addresses several quirks from the first generation, such as the short front end and steep head angle, which caused toe overlap. The reviewer praises the updated geometry, which now features a longer front center and slacker head angle, eliminating toe overlap even with larger tires. They also highlight the improved seat post system, now a twin-bolt design, and the inclusion of a UDH hanger with a spare provided. The reviewer mentions the robust construction and wall thickness, though notes it is not lightweight. They also discuss the frame storage bags, which are well-executed but too small for practical use. The reviewer appreciates the documentation and part list provided by YOELEO, calling it exemplary. However, they point out some remaining issues like the fork expander system and front brake alignment.

August 10, 2025Watch on YouTube
Patrick Lino2 videos
21:40
Yoeleo Altera G21 - The ULTIMATE Gravel Bike Contender For 2025!

The reviewer provides a detailed analysis of the YOELEO Altera G21 gravel frame set for 2025. They highlight its revamped design, noting it as YOELEO's flagship gravel frame set with significant improvements over previous models. The reviewer is excited about building it up and praises its thoughtful features, quality, and attention to detail throughout the video.

June 17, 2025Watch on YouTube
20:33
My Yoeleo G21 Altera Gravel Bike is FINISHED!

The reviewer discusses the Yolio G21 Altera gravel bike frameset extensively throughout the video. They highlight that this is the updated version of Yolio's gravel bike, featuring a silver champagne color and several key updates. The reviewer praises the frameset for its internal storage options on both the top tube and down tube, upgraded T47 threaded bottom bracket, UDH (Universal Derailleur Hanger) compatibility, and revised geometry to prevent toe overlap. They also mention the frameset's compatibility with up to 53C tires and its 27.2 round seat post. The reviewer notes the frameset's high-quality fit and finish, comparing it favorably to premium Western brands.

July 22, 2025Watch on YouTube
GC Performance
53:30
BUILDING my brand NEW, TOP TIER GRAVEL BIKE!! *yoeleo altera G21*

The reviewer discusses the Yolio Altera G21 DB Gravel Bike Frameset extensively throughout the video, highlighting its features, build quality, and performance. They mention it as a redesigned, very capable gravel race endurance bike with a UDH hanger, T47 bottom bracket, and clearance for up to 700x53C or 650Bx2.1 tires. The frame has multiple mounting points for bottles and storage, a nice paint job, and comes with an integrated handlebar system. The reviewer also notes the frame's weight, warranty options, and compatibility with various components.

June 09, 2025Watch on YouTube
Cyclists Hub
Is the YOELEO G21 Altera the Most Universal Chinese Gravel Bike? I Tested It to Find Out!

The reviewer states that the YOELEO G21 Altera is an improved version of the previous G21 frameset, highlighting several new features and sharing their positive experience building and riding it.

February 11, 2026Read full review
Codes from reviewers
Patrick Linopandapodium.ccPattyL75
Tom Bowers Cyclingyoeleobike.comtbcycling
Patrick Linoyoeleobike.comPATTY10
oz cycleyoeleobike.comozcycledisc
Peak Torqueyoeleobike.comPT10
GC Performanceyoeleobike.comGC10
Purchase

Where to Buy

€1,420.00· 5 stores
View Deals

UCI Approved Equipment

UCI approval certifies that the shape of this equipment complies with the UCI technical regulations, so it may be used in sanctioned road, track and cyclo-cross races.

FrameForkDisciplineApproved sizesApprovedFrame codeFork code
G21FK21All disciplines450–610 (7 sizes)February 08, 2023YOEL-G21YOEL-G21

From the UCI List of Approved Models of Framesets, version 2026.08.14. Open the UCI list

Specifications

Attributes

Frame TypeGravel
Frame MaterialCarbon
Brake Mount
Bottom BracketT47
Seatpost
Front Axle
Rear Axle
Max Tire Width53 mm
Headset Type
Di2 Compatible
Max Chainring Size
UDH CompatibleYes
Includes CockpitYes
UCI LegalYes
Stack : Reach1.51
2021 Base

Included Components

Yoeleo Altera G21 DB
Frame
1,170g
YOELEO H21
Handlebar
Total Weight1,170g

Spotted an error in the specs? Help us correct it — sign in or create an account.

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