1. engine oil (changed every 1,500 to 20,000km)
1.1. regular oil change helps to keep the engine life spend.
2. Sustain
2.1. Tyres
2.1.1. Tires can be burned as fuel in facilities equipped to handle them safely. TDF(Tire- Derived Fuel) is often used in cement kilns, pulp and paper mills, and other industrial settings as a substitute for coal or other fossil fuels.
2.1.2. Road construction: Crumb rubber derived from recycled tires can be mixed with asphalt to create more durable and flexible road surfaces.
2.1.3. Playground mulch: Shredded or chipped tires can be used as a soft and impact-absorbing surface for playgrounds to help cushion falls.
2.2. Engine oil
2.2.1. Send to recycling centres after using it. They have the necessary facilities and equipment to filter out the dirt
2.2.2. Use to lubricate creaky gate, door or window hinges. Use an old paintbrush to apply engine oil to creaky window or gate hinge.
2.2.3. Use it to clean your tools. Pour your unused engine oil into an old container, and simply dip or drop your DIY tools into the container for a few minutes, remove and wipe dry. Engine oil will ensure your tools are properly lubricated, free from moisture, and shiny to look at.
3. Wasted
3.1. tyres
3.1.1. good tyres make rides smooth and safe
3.2. fuels
3.2.1. helps to start the engine and move the bike
4. Check
4.1. tyres
4.1.1. Check the tread indicators. Its a small bar of rubber running across the grooves in between the tread – called tread wear indicators which tells you when the tyre is worn out.
4.1.1.1. Tyres are expensive to produce and depending on the compound and brand it can range up to 200$ per tyre
4.2. Engine oil
4.2.1. Check for engine oil after flushing out and see the colour. If it is milky brown then it is a hazard and something is wrong in the engine. If it comes out black then its normal.
4.2.1.1. A litre of a bottle of engine oil ca range from 30$-40$ depending on the brand and type of oil
4.3. Chain
4.3.1. See for any indication of rust on the chain and whether its loose or not.
4.3.1.1. A whole set of chain can cost up to 30$
5. engine
5.1. gearbox and crank case
5.1.1. aluminum (strong and light weight)
5.2. engine cyclinder
5.2.1. cast iron (high tempeture and pressure)
5.3. piston
5.3.1. aluminum alloy(light weight)
6. frame
6.1. sheet metal
6.1.1. tubular metal designed in a hollow metal shell (strong and light )
7. wiring kit
7.1. wires(copper and rubber)
7.1.1. battery
7.1.1.1. lights
8. wheels and supension
8.1. wheels
8.1.1. synthetic rubber(inner tube)
8.1.1.1. textile cores(supports the inner tube)
8.1.1.1.1. metal hoops & bead wires (hold it onto the rims)
8.2. mono shock/supension
8.2.1. steel sheets
8.2.1.1. molds into a tube
8.2.1.2. bearings
8.2.1.2.1. help to keep the front and rear wheel on the ground
8.2.1.3. springs
8.3. chains
8.3.1. steel sheets
8.3.1.1. molds into links to form links of chains
8.3.1.1.1. this helps with connecting with the engine gear linked with the rear wheel.
9. fairings
9.1. plastic/metal or carbon fiber
9.1.1. This helps the bike look good and also helps with aerodynamics