With the NFL season finally here, ESPN Chalk's NFL Vegas experts -- Dave Tuley and Erin Rynning -- bring you individual team previews for all 32 squads. They break down each team's strengths and weaknesses, along with season win total bets and Super Bowl 50 odds.
San Francisco 49ers
Super Bowl odds: 100-1 (opened 25-1)
Season win total: 6.5 (under -150)
2014 regular-season record: San Francisco 8-8 (6-9-1 ATS)
Odds courtesy of Westgate Las Vegas SuperBook, as of Sept. 7
Dave Tuley
There are many times in sports betting when you see everyone going one way and you know you should take the contrarian approach -- but it's not easy. Take the 49ers, for example. Head coach Jim Harbaugh left, Frank Gore and Michael Crabtree are gone from the offense and it seems like half of the defense retired. San Francisco has gone from Super Bowl contender to 100-1 longshot in less than a year.

