An exothermic process releases heat (converting some of its chemical potential energy to heat energy). An endothermic process absorbs heat (converting some of the heat energy into chemical potential energy.) Below is a table of common phase changes and their associated energy
Bike Dimensions. Bikes today come in all sizes and shapes, from rugged mountain bikes to those made for children learning to ride for the first time. Here are just some of the models on sale today. Bike Dimensions: GMC Topkick Dual-Suspension Mountain Bike. The GMC Topkick dual-suspension mountain bike measures 52 x 27 x 7.5 inches. It has a 26-inch full-suspension frame and Zoom CH-386 suspension fork (65 mm travel). The seat post measures 27.2 x 300 mm and the saddle is padded.
Wheel Size. Traditionally mountain bikes come with 26-inch rims. A new trend on the rise is using larger rims, called 29ers. These bikes use a larger 700c rim like that on road or hybrid bicycle. A 700c rim is about 700 mm or 27.5 inches, making the name 29er a bit confusing. The name 29er is actually a reference to the size of the rim including the tire, which is significantly thicker on a mountain bike compared to that of road or hybrid bike.