I have two: A 2010 Speed Triple SE and a 2009 Daytona 675.
The 675 is narrow and light. Relative to others in the 600 class it has great torque. If you're looking for a 675 I'd suggest the 2009 and above. In 2009 they updated quite a few things:
- Added the race kit 1st gear as standard equipment
- Improved the cam chain tensioner
- Moved the R/R to the right side under the fairing for better air flow
- Added a plug to the wiring harness so a quick shifter is "plug and play"
- Updated the suspension to add both slow and fast compression and rebound damping
Those are things I can remember off the top of my head. The 2009 also has Nissin monoblock calipers and that bike will STOP. The brakes are fantastic.
The Speed Triple is a LOT of fun. The engine has tons of torque and downshifting isn't really necessary in a lot of cases.
If you're looking at a Speed Triple I'd look at the 2008 and above. Prior to 2008 the brakes were "squishy". Triumph tried to call it a progressive brake lever, but the damn things were just too soft. In 2008 they improved the brakes dramatically.
I've got about 20,000 miles on the Speed Triple and it's been solid. I had a tank venting issue that created a vacuum inside the tank. It got bad enough that it actually bent my tank (sucked in the sides). Triumph replaced my tank free of charge. That's been my only issue.
I've not had any mechanical issues with my 675 (that I didn't create).
The new Daytona 675R is complete sex and I wish I could buy one.
Triumphs come with a two year warranty that I THINK is (one time) transferable. That's something you'd have to check out if you don't buy new.
If I only could have one bike, it would be a Street Triple R. The Street Triple R is the best of both worlds. It's kind of a combo Speed Triple / Daytona 675. My only complaint with the Street Triple is the "tuned for torque" non-sense on the 675 engine. Yes, it does produce a little more torque across the rev range than the Daytona 675, but it's down about 20hp versus the Daytona. I wish they would have just put the Daytona 675 engine without any changes in the Street Triple and called it a day.
The only downside I can see to owning a Triumph is if you crash it. Used parts are a little harder to come by. There's ALWAYS a wrecked Suzuki, Honda, Yamaha or Kawasaki available to poach parts. Finding a wrecked 675 to leech parts off of is a little more work.
Still, I REALLY like my Triumphs and would heartily endorse ownership.