I have just bought a Specialized Sirrus Comp 2011. It is a sporty hybrid, combining elements from road bikes as well as hybrids. It is a good looking, light, responsive and comfortable bike. It is fast and climbs well, yet it will handle less than perfect roads with ease. I have fitted mud-guards and a rack to use it for hauling my weekly shopping. My first impressions are wholly positive. I have even been able to keep up with road bikes on my commute. The only negative so far is that the gear shifting is not as fast as I would like it. Wholly recommended. My rating: 90%

I've had my Specialized Sirrus only for a couple of days, but my first impression is a very good one. Very good position on the bicycle, nice hard and thin tires, narrow handlebar (I put bar-ends on it, which I would recommend everyone to do) - all that accounts for excellent riding speed. Saddle hasn't given me any problems so far (which I usually get with new bikes), neither have the foot pedals.

Only slight negative observed so far is that when shifting gears the chain doesn't engage with the cog quite as quickly as you'd like to, and there seems to be minimal friction of the chain on some part when riding in the highest gear.

It's probably early for an overall conclusion, but if I don't get major problems with repairs I'll be a very happy bunny, especially considering the relatively low price of the bicycle.

I bought the 2008 Specialized Sirrus Pro bike used off the SF Bay Area Craigslist about a month ago.
I have an entry level road bike with low end components and a mountain bike, so I wanted upgraded components and lighter frame.
For less than $700.00 I got practically new full carbon bike with good components. The rear derailleur is a deore. Specialized specs said it was 105. ??
Only complaint, I lost a bladed spoke, unable to find a replacement at local bike shops. had to replace with a round one. None carried any length bladed spokes.
Good steep hill road climber and strong brakes. Good in traffic. Light and comfortable. Good looking. 2008 about $1,000. less than 2009, new. 2009 SRAM, 2008 Shimano 105 mix. The 2008 components are fine.
Happy I bought it, it is what I expected, I use it about one third of the time.

The 2009 specialized Sirrus sport is the best bike I've ever had.
Having ridden a 2008 model for a week a few months ago I knew I had to get the pedals and the tyres changed before I left the shop. I put slightly larger pedals (I don't have big feet) and armadillo tyres with proper tread and it was perfect. The tyres it comes with are rubbish and you will get lots and lots of punctures. Looks brilliant. Very comfortable on good roads and very fast..

I found the Sirrus a very stylish, well finished bike which was fast and smooth on good roads however, for commuting on most town and city roads it was not really up to the job. The ride is too harsh due to the racing bike style wheels and tyres. I have reverted to a mountain bike with slicks which is far more comfortable and surprisingly only a little slower.

Excellent bike for commuting. Front forks are Cromoly material, lacks shocks on bumpy roads. Still the Specialized Sirrus is a great bike with high end deraillers.

Highly recommended bike, pros easily outweigh any cons

For the record, I love my 2007 Sirrus. The large diameter wheels and slender road tyres (combined with its unusually light weight), give the bike a zippy feel, as commuting on the Sirrus takes much less time as compared to my mountain bike. The solid frame/forks contribute to its nimble and precise handling, although it is a bumpy ride. I find that since most of the riders weight is distributed over the rear wheel, full rear tyre pressure reduces road friction considerably, and makes for a faster ride. The front tyre, however, can be inflated to as little as half that of the rear tyre, which reduces road vibration through the hands and arms alot. This smoothes out the otherwise stiff ride nicely. The bike is also nice enough that upgrading a few components isn't out of place either. I upgraded the Sora rear derailleur to an Ultegra 9sp unit. I didn't need the upgrade, but I'm a component junkie. The stock components should provide 2000 to 3000 miles of trouble free service, however. To this day, I still get compliments on the bike!