Since you're talking about commuting;the Sirrus's V brakes will allow for wider tires and fenders than the Wknd's caliper brakes,the 48/34x11-36 drivetrain will allow easier climbing than the Wknd's narrower 50/34x11-28,and the Specialized tires will have better puncture protection than the Maxxis D's. Also,SRAM shifters utilize two thumb levers,which makes them easier to operate with winter gloves/mittens than Shimano triggers. The X-7 groupo is also a touch higher in spec than the 105/Tiagra combo.
Originally Posted by
Siu Blue Wind
Please do not give mis information.
He didn't. Most average riders can't tell the difference between groupos that aren't several levels apart in quality. Most people will notice a difference between 2300 and Dura Ace,but would never know if you swapped their Deore shifters for LX.