Attention! Have you done all the 8 self-checks before departure?
When you finish your work week, you are ready to go on Friday night, and you are ready for the weekend's wanton riding. At this time, you must check your car, because if you don’t have a complete set of functions, you will become difficult to move. Therefore, the inspection before riding is also a common step in preparation.
Give your car a quick and comprehensive inspection before departure. This will help you discover small problems that may cause mechanical failure or avoid unexpected situations. General household tools are enough to complete quick self-checks, so you don’t have to worry about cumbersome procedures.
Keep in mind that the steps described here only apply to bicycles that are in good condition and properly maintained. If your bicycle has been in the garage for a long time, be sure to ask a professional bicycle technician to perform a comprehensive physical examination and major health care. The entire adjustment process described below takes about an hour, so it is best to complete the adjustment before the beginning of the cycling season, but once you have mastered each step, it only takes a few minutes to start each cycling. .
The following are the eight self-checks that you need to do before you start, which are related to riding safety and riding experience. It is best to study carefully.
1. Wipe quickly
Put your bicycle on the repair stand. If the bicycle is a bit dusty, wipe it with a rag. If it is really dirty, remove both wheels and wash them thoroughly. If the transmission system is dirty, apply degreaser to the bicycle chain and derailleur, and then let it sit for a few minutes. Fill the bucket with warm soapy water. Wet the sponge, fix it on the chain, and then turn the crank so that the chain passes through the sponge until the links are clean. Also clean the crank and transmission. Then use a new sponge to clean the frame and parts (including wheels), and rinse with dripping water from above. (Do not spray high-pressure water directly on the bicycle, as this will force the water into the bearing.) Then dry the bicycle and all parts with a clean rag.
2. Check the head tube and bottom bracket bearing
Tighten the headset cover correctly (preferably using a torque wrench) to ensure that the stem does not shake: stand in front of the bicycle, hold the front fork with one hand, and hold the down tube with the other hand and push and pull the fork to Check if the head tube rotates. Slowly turn the front fork from side to side to feel the smoothness, and then tighten the screws on the headset cover and stem.
Check the bearing at the bottom bracket: stand on the side of the repair station and grab the crank arm to push and pull. Usually most bottom bracket bearings are sealed. If you push or pull the crank and feel shaking, please remove the crank and adjust it.
3. Check the tires
If you find residual debris in the tire, clean it carefully. And check your tires for cracks, cuts, blisters or excessive wear. Replace tires according to your actual needs.
In addition, check the bead. The bead should always be below the rim. If it goes deep into the rim or does not fit into the rim, you need to deflate and reinflate the tire to ensure that it is in the correct position. The wheel set and the tire are always engaged. Reinstall the wheel set on the bicycle and ensure that it is centered on the frame and the quick release or barrel shaft is tightened.
4. Check the wheels
Starting from the gas nozzle, start checking the condition of the spokes. Swing each spoke to see if it is loose. After a few checks, you will know what kind of tension is normal. If you find that the spoke is loose, use a spoke wrench to tighten it clockwise in half-turn increments from the top-down viewing angle. Then judge the condition of the wheel set by observing the gap between the rim and the brake pads. If yaw occurs, you need to adjust the rim.
Of course, adjusting the rim is a more complicated task, unless you are an experienced hands-on expert. Otherwise, you'd better leave the wheel set to a professional technician. As the basic knowledge of ring adjustment, if the rim is deflected to the left, you need to loosen the right spoke cap and tighten the left spoke cap in the problem area. If the rim is deflected to the right, the operation is reversed. In the adjustment process, always adjust and check only half a circle each time. In doing this, patience is particularly important.
5. Check the transmission system and repair tools
Check whether the transmission gear is close to the chain and whether the screws are tightened. Although the main components should not be loose during normal use, and you don't want to check every time, regular checks are still a wise choice. Tighten the crank screws, pedals, guide wheels, seat rods, cushions, brakes and shift handlebars. (Except for the counterclockwise rotation of the left pedal, tighten it clockwise.)
In addition, please make sure that all maintenance equipment, such as carbon dioxide cylinders, gas pumps, etc., are in proper working condition. Finally, put a drop of lubricant on the pedal shaft, derailleur and brake shaft.
6. Conduit and chain
Maintaining the correct lubrication of the chain and other parts is essential to the normal operation (and quiet operation) of the bicycle. If there is no internal wiring, lubricate the part of the transmission line going down the tube, lubricate the chain, and then repeatedly shift gears to test the smoothness of the transmission.
Because the traces of the post-change are longer, and the corresponding use times are more. Therefore, problems are more likely to occur. After each gear change, the chain should be brought to the next gear immediately. If the chain keeps going to a larger gear, the transmission line is too long. If the gear jumps to the small flywheel, it may be because the transmission line is too short. After turning the knob counterclockwise, the gear is still adjusted in half-turn increments each time, and the gear is fixed at the larger flywheel. If you want to adjust to a smaller flywheel, do the opposite.
For the electric substation system, be sure to perform the same test to ensure that everything is normal for the front and rear dials. If a problem occurs, please refer to the troubleshooting manual for your kit. The adjustment of the electric variable is easier than the traditional mechanical variable speed. In fact, as long as your battery is fully charged, there is no need to make too many adjustments. An uncharged battery will turn an electric transformation system into a pile of electronic waste. Nothing is worse than riding one gear a day.
7. Braking system
Turn the adjusting screw on the caliper, the brake pad can be moved in and out. Check all four brake pads, if the grooves have worn out, they should be replaced as soon as possible. Make sure that the four brake pads can be tightly attached to the rim, otherwise you need to use a hex wrench to loosen and readjust. After pinching the brake, the brake shoe should be close to the rim. If only one side is close to the rim, it needs to be rotated until both sides are the same distance from the rim (1/4-1/8 inch, about 6-12 mm) .
If you are a disc brake user, you need to remove the wheels and check the brake calipers. After removing the wheel, make sure that the distance between the brake pads is at least 1.5 mm. (Note: Never pinch the brake after removing the wheel set). If there is a problem, be sure to replace the pad.
After installing the wheels, squeeze the brakes to ensure that the brakes can work correctly. If the brakes feel bad or cannot be stopped until they are pinched, your hydraulic disc brakes may need to be vented. This is another advanced maintenance work, so if you are not an experienced driver, please be sure to hand over this work to a professional technician.
8. Test before departure
After completing all these steps, please ride a bike for a short test. Repeated shifting and braking, if there is any abnormality, please adjust in advance. After everything is in order, you can embark on the journey. Together with your ready-to-go car, you can unite with people and cars, and rush to the end!