Originally Posted by
TomWinKC
The FastRoad Comax is a radical and good looking ride but it is a different riding bike than the Sirrus. The Sirrus has a longer wheel base and longer chainstays. Wheel base is over an 1" longer. The '15 Sirrus Pro Carbon came with Carbon Seat post, Carbon handle Bars and Zertz inserts in the fork and chain stay. Different stroke for different folks. Handling is signicantly different.
I've ridden both bikes. They ride virtually identical. The 1" difference wheelbase isn't noticeable when comparing the two.
The FastRoad comax has a carbon seat post and comes with Giant RideSense built into the bike, which is a wireless speed and cadence sensor, that is mounted on the chainstay.
https://www.thisisant.com/directory/ridesense-sensor
It is also $1000 less than the Sirrus Pro Carbon. $100 would get me new carbon bars. The extra $900 I save could be used on component upgrades if desired.