2025 Altias Fusion Frameset
- Category
- Track/Fixed-gear
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
Geometry
S | M | L | XL | |
Stack | 480mm | 500mm | 530mm | 565mm |
Reach | 438mm | 457mm | 474mm | 464mm |
Stack to Reach Ratio | 1.1:1 | 1.09:1 | 1.12:1 | 1.22:1 |
Seat Tube Length, C-T | 499mm | 520mm | 551mm | 588mm |
Top Tube Length, Actual C-C | 576mm | 601mm | 626mm | 626mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 274mm | 274mm | 274mm | 274mm |
Front-Center Horizontal | 600mm | 625mm | 650mm | 650mm |
Trail | — — | — — | — — | — — |
Mechanical Trail | — | — | — | — |
Wheel Flop | — | — | — | — |
Pedal Spindle to Ground Clearance | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks |
Frameset Build
S | M | L | XL | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 23mm | 23mm | 23mm | 23mm |
Tire Width Max | 28mm | 28mm | 28mm | 28mm |
Tire Outer Diameter | 668mm | 668mm | 668mm | 668mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Track/Fixed-gearSource:https://altias.co/products/altias-fusion-frameset