21.   And a mountain bike is quite expensive to replace!

22.   Although the bike mimics a mountain bike, specific frame geometries have been incorporated to accommodate a variety of comfort features.

23.   Among its features is a slide out roof rack that goes into the rear hatch for mountain bikes or skis.

24.   An earlier version came with a mountain bike.

25.   And mountain bikes, which account for two-thirds of all bicycle sales in the United States, will become part of the Olympic program.

26.   And though his youngest son, Thomas, did not play golf, Hussa managed to interest him in skiing and riding mountain bikes.

27.   And with many enthusiasts who wanted mountain bikes having bought them, the bike market seemed to have run its natural course.

28.   Another company seeking the outdoors set is Volkswagen, which is selling a special edition of its Jetta sedan complete with a Trek mountain bike.

29.   Another woman did all her shopping on a mountain bike.

30.   Ari Shapiro never felt comfortable wearing skin-tight, brightly colored cycling shorts and tops while riding his mountain bike on woodsy terrain.