Canyon Grail CFR Di2 vs Salsa Flyway
Both published charts held against each other, on the specs that decide what the bike carries.
The short answer
The Grail CFR Di2 takes frame bag space; the Flyway takes tire clearance, the rack path and dropper compatibility. Which matters more is your route, not a scoreboard.
Assembled from the differences below rather than written over them, so it cannot drift from the table. Every figure is the manufacturer's; nobody here has ridden either bike.
Where they differ
4 of the 7 things we can compare come out differently. The rest are close enough not to decide anything.
Frame bag space
150 cm² more on the Grail CFR Di2Front-triangle area at the largest size, computed from stack, reach and seat angle. It is what decides how much full-frame bag you can run, and a frame bag is the one place weight sits low and central.
Widest published tire
9mm more on the FlywayThe frame figure, not the fork's — forks are routinely cut for more rubber than the rear triangle. Loaded, tire width is also seat-pack clearance: a big tire and a sagging pack compete for the same space.
Rear rack
Flyway is the one you can bolt a rack to without hunting for partsRead from each maker's own mount wording. An adapter is a real cost the price tag does not mention, and 'not published' is not the same as no — it just is not something to buy a rack on.
Dropper post
only the Flyway publishes dropper routingA dropper cannot be strapped to, so fitting one rules out almost every seat pack and leaves rail-mounted bags at a fraction of the volume. It is a capability and a constraint at once.
Side by side
Including the rows where the two are level, because a spec that doesn't separate them is still a spec you might be checking.
| Canyon Grail CFR Di2 | Salsa Flyway | |
|---|---|---|
| Frame bag space | 1864 cm² | 1714 cm² |
| Widest published tire | 42mm on 700c / 29in | 50mm on 700c / 29in, 51mm on 650b / 27.5in |
| Rear rack | Not published | Needs an extra part — Rack-Lock seatpost collar |
| Fork cargo mounts | Published | Published |
| Frame bottle positions | not published as a count | 3 |
| Dropper post | Not published | Compatible |
| Chainstay | 425mm | 425mm |
| Sizes | 7 | 6 |
| Frame | Canyon CFR carbon | Carbon |
Drawn to scale
Largest published size of each, built from the charts rather than illustrated. The front triangle is the part that decides frame bag fit.