It is also largely used in forming alloys with other metals, thus solder is made of 50 parts of lead and 50 parts of tin; type-metal is made of 80 parts of lead and 20 parts of antimony; and pewter is made of 25 parts of lead and 75 parts of tin.&nbsp. Continue to: 1  prev: Some Hints on Using the Tools.t is also largely used in forming alloys with other metals, thus solder is made of 50 parts of lead and 50 parts of tin; type-metal is made of 80 parts of lead and 20 parts of antimony; and pewter is made of 25 parts of lead and 75 parts of tin. &nbsp.
The frame of a sportive bike is designed to make for a more comfortable ride than a âracingâ road bike. This makes sense. Sportive rides can be over 100 miles in length, which can equate to 6-8 hours in the saddle.
BMX Bike Size Calculator. BMX bikes are built for racing or freestyle riding. Racing BMX bikes are lightweight, designed for speed and stability, while freestyle BMX bikes are sturdier, with thicker frames and tires, designed for maneuverability while doing jumps and tricks.