YOELEO Altera G21 DB Gravel Bike Frameset
$1,420.00
“G21 Altera, the best gravel with endless capabilities.”
- Material: Toray 800 Carbon
- Color: Champagne
- Frame Weight: Champagne 1170g (+/-50g, 56cm)
- BB: T47, supports Shimano/SRAM cranks
- Max Tire: 700x53mm / 650Bx2.1”
- Mounts: 4 Bottle / Mudguard / Cargo Rack
- Handlebar: Integrated Carbon, multiple sizes
- UCI Approved
Panda Podium Review
The latest version of the G21 builds and improves on the last version. Now in it's third generation, the G21 has evolved from feedback given from riders and reviewers alike. The latest version feature... keep reading
What Customers Think
- Description
- Additional information
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- Reviews (1)
Description
Altera: Gravel From The Future
What's New
More storage, more flexible, more comfort, more control and more of everyhing. If G21 has the answer to your questions, the G21 Alterra has the answer and more.
Refined Gravel-Optimized Geometry
Slacker headtube angle, longer wheelbase, and a shorter stem come together for better stability and control on rough terrain—without the worry of toe overlap.
Integrated Storage Solutions
Internal storage compartments on the top tube and down tube (with a built-in bag) let you pack more gear for extended rides or simply stash a day’s worth of essentials directly in your frame.
Generous Tire Clearance
Supports up to 700x53mm or 650Bx2.1” tires (single chainring). From fast gravel to rugged trails, Altera adapts to the ride you want.
Premium Detailing and QC
Careful quality checks and a clean, high-level paint finish give you the kind of value you don't usually find at this price.
UDH Compatibility & Optimization
The Universal Derailleur Hanger (UDH) adds an extra layer of security and flexibility. Ride confidently knowing your derailleur and frame are protected, and choose any groupset you prefer with UDH’s universal fit.
Introducing the Yoeleo Pro-Flex Seatpost
Now featuring a 27.2mm round profile, the Pro-Flex Seatpost quickly absorbs road buzz for improved comfort. The round design also makes it easy to switch to a third-party seatpost if desired—or even upgrade to a dropper seatpost. This change from the previous D-shaped configuration opens up more possibilities for every rider.
Re-Engineered BB Shell
A threaded bottom bracket made from bonded aluminum is now molded into the frame—offering perfect alignment, improved durability, and a lighter overall build for a smoother ride experience.
Flared Cockpit System
With a 15.2° flare and widths from 400 to 440mm, H21 CARBON INTEGRATED HANDLEBAR offers better control and all day comfort. Perfect for gravel, adventure, and aggressive terrain.
Assuring Altera G21's Quality
This is how we know that Altera G21 is the gravel bike everyone needs and everyone deserves
Specification
Including Parts: G21 Frame, Fork, Handlebar, Seatpost
Frame Size: 45cm, 49cm, 52cm, 54cm, 56cm, 58cm, 60cm
Material: High Modulus Toray 800 Carbon Fiber
Color: Champagne
BB: BB T-47 inboard bearing
(Pick the right BB depending on your crank spindle size)
E.g. If you are using a 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: 86.5mm
Headtube: Straight 1-1/2”
Rear Dropout: 12*142 Thru Axle
Rear Derailleur Hanger: UDH - Replaceable
Frame Weight:
Champagne 1170g (56cm)±50g
Raw 1150g (56cm) ±50g
Fork: 1 1/8" - 1 1/2", 12*100 Thru Axle
Fork Weight: 480g (painted, 56cm frame)
Tapered Steerer Tube: 1 1/8" Top, 1 1/2" Crown
Seatpost Weight: 95.2g (without clamp)
Seatpost Shape: Round (27.2mm)
Compatibility:
Chainring:
- 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.
Brake Fitment: Flat Mount Disc
Cable Routing: Internal
Bottle Mounts: 4
Mudguard Compatible: Yes
Cargo Rack Compatible: Yes
Max Tire Width: 700X53mm, 650BX2.1” (single chainring setup)
Accessories: Handlebar Spacers 3mm: 1 pc, 5mm: 1 pc, 10mm: 2 pcs, Headset Bearing Cap 10mm: 1 pc, Front Axle: 1 pc, Rear Axle: 1 pc
Limited Rider Weight: 125KG
Warranty: 6 Years
G21's Frame Geometry
Gravel Optimized. Outstanding Stability.
| 45 | 49 | 52 | 54 | 56 | 58 | 60 | ||
|---|---|---|---|---|---|---|---|---|
| Size Recommendation | Rider Height | 160cm–168cm | 165cm–175cm | 172cm–180cm | 177cm–185cm | 182cm–190cm | 187cm–196cm | 193cm–201cm |
| A | SEAT TUBE LENGTH (mm) | 450 | 490 | 520 | 540 | 560 | 580 | 610 |
| B | TOP TUBE LENGTH (mm) | 510 | 515 | 536.4 | 551 | 566 | 577 | 592 |
| C | REACH (mm) | 373 | 373 | 379 | 383 | 387 | 390 | 396 |
| D | STACK (mm) | 512 | 531 | 549 | 566 | 586 | 611 | 640 |
| E | HEAD TUBE LENGTH (mm) | 79 | 98.5 | 107 | 134 | 145 | 171 | 200 |
| F | SEAT TUBE ANGLE | 75° | 75.0° | 74.0° | 73.5° | 73° | 73.0° | 73.0° |
| G | HEAD TUBE ANGLE | 69° | 69.5° | 70° | 70° | 72.2° | 72.3° | 72.6° |
| H | BOTTOM BRACKET DROP (mm) | 79 | 79 | 79 | 79 | 79 | 79 | 79 |
| I | CHAIN STAY LENGTH (mm) | 433 | 433 | 433 | 433 | 433 | 433 | 433 |
| L | FORK RAKE (mm) | 47 | 47 | 47 | 47 | 47 | 47 | 47 |
| M | FORK LENGTH (mm) | 401.5 | 401.5 | 401.5 | 401.5 | 401.5 | 401.5 | 401.5 |
Optional for H21 Intergrated Handlebar ($170.00)
| Handlebar Type | Gravel Bike / Road Bike Handlebar |
| Handlebar Material | 100% Carbon Fiber T800 |
| Finish | UD Matt |
| Decal | Black Glossy |
| Handlebar Stem | 80/90/100/110mm |
| Handlebar Width | 400/420/440mm |
| Angle | 10.2° |
| Reach | 80mm |
| Drop | 120mm |
| Steer Diameter | 28.6mm Compatible |
| Cable Type | Inner Cable / Outer Cable |
| Weight | 376g ± 15g |
| Comes with | Computer Holder, Spacers for rounded 1-1/8 inch (28.6mm) steerer, Top cap and outer cable bearing cover. |
| Standard | EN Standard |
Additional information
| Color | Champagne |
|---|---|
| Frame Size | 45cm, 49cm, 52cm, 54cm, 56cm, 58cm, 60cm |
| Fork Option | With Mount Holes, Without Mount Holes |
Brand
YOELEO
| Brand Name: YOELEO | Chinese Company Name:厦门优利奥体育用品有限公司 |
| Founded: 2011 | # of Employees: 36 |
| Headquarters: Xiamen, Fujian | Products Categories: Wheels, Frames |
1 review for YOELEO Altera G21 DB Gravel Bike Frameset
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Joe Whittingham –
The latest version of the G21 builds and improves on the last version. Now in it’s third generation, the G21 has evolved from feedback given from riders and reviewers alike. The latest version features integrated in-frame storage, a standard 27.2mm round seatpost and UDH compatibility. The frame is a very versatile option giving the user a multitude of ways to build it up. All-road, endurance, light gravel, heavy gravel, bike-packing, etc. The massive 53mm tire clearance keeps options open. The price also reflects good value. In an age where we’re seeing lots of price-creep towards $2000 frames and above, this price is refreshing value. My main criticism of the frame is the weight. Of course, it can be argued that in gravel weight is less important and that all these features (such as in-frame storage) come at a weight penalty, but the weight weenie within me still wishes it was 100-150g lighter.