Bell helped the Gers set a new post-war record for consecutive victories in competitive matches on Tuesday night.
He was between the sticks as Ally McCoist's team beat SPFL League One rivals Forfar Athletic by a 6-1 margin at home.
That meant Rangers had won 19 games in a row and beaten the mark they had set during their memorable 1992/93 campaign.
But the former Kilmarnock and Scotland stopper reckons their bid to record a "Perfect Season" in the league will become more demanding in the weeks ahead.
He said: "It will be really, really difficult in the winter which always has its problems with the weather in Scotland.
"It's going to be a really tough task to keep it going, but we look forward to the challenge and take every game as it comes. That's our concentration - each game as it comes.
"It is going to be really difficult because you have got to go to small stadiums and you know what the weather is like here in Scotland.
"Can you imagine trying to play football in the winds we had this week? That will be a tough task itself."
Bell also feels the quality of teams in Scottish football's third tier is underestimated by many fans.
He said: "The teams have got some good quality players. I watched Gavin Swankie's goal for Forfar the other day and it was an unbelievable strike.
"I think it shows there are really good players in the league. Teams have caused us problems.
"Forfar up there was a real struggle for us. We didn't play great. You need to roll up your sleeves and grind out some games."
The 27-year-old reckons Rangers will have to be at their very best to record their 15th straight win in League One against Ayr Unitedat Ibrox today.
He played with former Light Blues striker Kevin Kyle during his time at Kilmarnock and knows just what a difficult opponent he can be.
He said: "Kevin is a good guy and is always a handful when he plays up top. I'm sure he'll be fired up for the game and will give me a wee dunt at a corner.
"I remember when he played at Hearts, he smashed me at one corner.
"But I get on really well with him and still speak to him. He'll be looking forward to it and hopefully he'll get a good reception."