DETROIT -- The San Francisco 49ers backed up their talk and prevented the Detroit Lions from doing the same.
San Francisco kept Detroit in the game with missed opportunities, then made just enough plays for a rare two-game winning streak and its first road win.
Frank Gore set a franchise record with 148 yards rushing in the first half and scored on a 61-yard run before leaving with a concussion, and Joe Nedney made all four of his field-goal attempts to give the 49ers a 19-13 victory yesterday.
Keith Lewis intercepted Jon Kitna's pass at the 49ers' 2 with 2 1/2 minutes left and San Francisco (4-5) picked up the one first down it needed to seal the game, winning consecutive games for the second time since 2003.
"A lot of the talk for us this week was to create a streak and to win on the road, two things we haven't had," San Francisco coach Mike Nolan said. "I'd like to think it's a turning point."
The Lions (2-7) had a chance to win consecutive games for the first time in nearly 26 months and the third time since 2001, when Matt Millen took control of the franchise.
Despite the lack of success, some players were bold enough to talk about winning four in a row after beating Atlanta by 16 points last week.
"Yes, it is a setback," said wide receiver Roy Williams, who has confidently talked about putting together an extended winning streak. "I think we came out a little flat. I don't think we were into this ballgame. I don't know if it's because it was San Francisco, and not an Atlanta Falcons team."
Gore finished with career-high 159 yards rushing, leaving the game with a mild concussion late in the third quarter after catching a pass.
San Francisco's Alex Smith was 14 of 20 for 136 yards with a fumble. Arnaz Battle caught six passes for 55 yards, and converted a third-and-4 on the final drive to allow the 49ers to run out the clock.
The 49ers entered the game giving up an NFL-high 30 points a game -- and an average of 40 in their previous three road games -- but they shut down Detroit's Mike Martz-directed offense a week after limiting Minnesota to three points.