Altis Sigma vs Altis Omega: which is bigger?
The Altis Omega is the bigger bike. Its wheelbase is 4.5 in (115 mm) longer (55.1 in (1,400 mm) vs 50.6 in (1,285 mm)), its seat sits 3.1 in (79 mm) higher.
With a 33.1 in (840 mm) seat, riders around 5'8" and up can get the balls of both feet down once suspension sag is counted, and riders around 6'1" and up can flat-foot it. On the Altis Omega, with a 36.2 in (919 mm) seat, riders around 6'3" and up can get the balls of both feet down once suspension sag is counted, and riders around 6'8" and up can flat-foot it.
Silhouettes are traced from manufacturer side-profile photos and scaled so the wheel-to-wheel distance matches the published wheelbase, so small parts like mirrors and fenders may be off by a few percent.
Questions
Is the Altis Sigma bigger than the Altis Omega?
No. The Altis Omega has the longer wheelbase, 55.1 in (1,400 mm) vs 50.6 in (1,285 mm).
Which has the lower seat height, the Altis Sigma or the Altis Omega?
The Altis Sigma, at 33.1 in (840 mm) vs 36.2 in (919 mm) for the Altis Omega, a 3.1 in (79 mm) difference.
How tall do you need to be for the Altis Sigma vs the Altis Omega?
Roughly: the Altis Sigma suits riders from about 5'8" (balls of feet down) and the Altis Omega from about 6'3". Shorter riders manage both with lowering links or a slimmer seat. Enter your height above to see yourself next to both.