Why remove and disassemble the bike fork
A bicycle fork, like all other components, can be replaced, repaired or serviced. Therefore, before proceeding with these procedures, we need to remove it from the bike, and in some cases disassemble the shock absorber for parts. In what cases will we have to remove it? First of all, this is when it is replaced by another. Secondly, it may be necessary to replace bearings and / or support cups, apply new lubricant, and also, there are times when it is necessary to align the steering tube or perform other repair work.
Disassembling a fork shock absorber is most often necessary to replace lubricant or worn components. For example, these can be oil seals (cuffs), etc.
How to Repair and Service a Loose Front Fork on a Bicycle
How to remove and disassemble the front bike fork
A bicycle fork serves more than just a link between the frame and the front wheel. On MTB models, it also acts as the main shock absorber, smoothing out vibrations, stress on the arms and negative effects on the mechanisms and the frame. Like any mechanism, it requires periodic maintenance, adjustment and replacement of component parts. And all this will require removal and disassembly. Is it possible to disassemble the bike fork by yourself? Quite, it only takes a little time, a few simple tools and accuracy.
In advance, it is worth preparing several tools for work: a wrench, a small hammer, pliers, a small gas adjustable wrench, a flat screwdriver. Since you have to use oil, you will need unnecessary rags, and in order not to get your hands dirty, gloves. To dismantle the fork, it is most convenient to attach the bike to a special rack-mount. If it is not there, the bike is placed upside down (this is not very convenient, because the handlebars will need to be removed). Operating procedure:
- Forks, wheels remove dirt.
- Disconnect the brakes and the entire set of wires and other devices attached to the fork “pants”.
- If the bike has V-brakes, it is enough to open its pads, if disc brakes, you need to unscrew the caliper, that is, the brake itself, and then detach the brake line from the fork.
- The speed sensor, wings are removed from the “pants”.
- Disconnect the steering wheel (since there is a hydraulic line mount and other cables on it, you should not try to completely remove the steering wheel, it is enough to squeeze the side ones on its extension and unscrew the anchor bolt), carefully remove it without damaging other mechanisms.
- To remove the bicycle fork, use a screwdriver or any thin sharp object to pry the retaining metal washer above the glass.
- With the same tool, press out the gasket, which is located under the washer. Moving the ring away from the edge of the glass, carefully remove it with your hands.
- Raise the bicycle frame and carefully, without losing the bearings, pull the front fork from below.
- To separate the crown from the stem, knock out the connecting ring.
- Using a flathead screwdriver and lightly tapping on it with a hammer, separate the ring from the end of the fork. To facilitate removal, there are small depressions underneath in front and behind.
All removed parts are neatly laid out, cleaned and lubricated.
Unscrew the handlebar mountings and remove it Carefully remove the locking washer Separate the crown from the stem
How to change the fork on a bike
After you set everything up and start riding, the first time there will be an abundant release of grease through the cuffs of the bike fork pants. Don’t worry, this is normal. Over time, excess oil will be squeezed out, and this process will stop. During this period, do not be lazy, and do not forget to wash off excess lubricant after each trip.
Element not fully inflated
In this case, there is not sufficient shock absorption. You can get a puncture by running into, for example, a pointed pit.
Tape designed to prevent punctures
Indeed, protective tape can be source of problems. It is tough, with sharp edges. If not installed correctly, the camera can be cut.
Note! Constant use of an anti-puncture tube reduces tire wear resistance.
Why flattens a wheel on a bicycle
Problems associated with the wheels constantly accompany outdoor enthusiasts and athletes. If a whole staff of employees is involved in the maintenance of bikes for professionals, then amateurs have to independently decide why they deflate a wheel on a bicycle.
How To Tighten Your Headset | Road Bike Maintenance
An annoying nuisance that seems impossible to avoid. But this is only at first glance. Often we ourselves are to blame for the flat tire of the bicycle. What is it about?
Foreign body in the tire
After a puncture, the camera was sealed using a flipper tape, but the working element is still constantly lowered. Perhaps, a shard of glass remained in the tire. It is difficult to detect and constantly creates problems for the cyclist.
On a note!
Before boarding, carefully check the wheel for small stones, glass and other foreign debris.
When beading and disassembling a wheel, you need to use a special tool. a bead blade. Discard screwdrivers, keys and so on.
Working element pumped over
Another reason why the bike is deflating. On the inside, the rim is glued with a flipper tape. It is she who protects the camera. The pumped-up element may break the flipper or burst.
Most often, a bicycle is deflating a wheel that has served its life. The surface of the tire becomes more viscous, collecting various debris, small glass and so on. All the little things gradually penetrate inside, right up to the camera. As a result. another puncture.
In addition, holes are formed on the worn rubber, into which the bicycle tube is visible when inflated. It can simply come into contact with the road when driving. This will inevitably lead to another unpleasant situation.
We eliminate the problem correctly
You need to remove the camera. Pump it up and grease it with glue. Then apply to the patch. Wait for the glue to set, and after 5 minutes the camera can be mounted.
About the reasons leading to negative consequences
There are at least five reasons. which can ruin your mood before a bike ride or while riding a bike:
- Normal wear and tear on a bicycle tire.
- A foreign body has got into the tire.
- Not fully inflated.
- Pumped over.
- Special anti-puncture tape.
Let’s dwell on each problem separately and find out what is the matter.
In addition to a routine inspection, the fork also requires regular maintenance, namely:
- every 100-150 km of the distance traveled, it is necessary to clean and lubricate the feet on the oil seals;
- every 500-1000 km. disassembly and full lubrication of oil seals;
- every 4000-5000 km or at least once a year an oil change is made (applies to oil plugs)
In general, a bicycle fork should be lubricated at least once a season, however, if you are actively using your bike, this procedure is recommended to be done more often. If we consider a spring-elastomer fork as an example, the lubrication process will look like this:
- Using a syringe, oil is poured under the boot.
- For the lubricant to be evenly distributed, the fork must be designed.
- Remaining oil must be removed with a soft cloth.
According to experts, it is better to use silicone and transparent greases as a lubricant.
In addition to lubrication, maintaining a bicycle fork also includes keeping the devices clean. To exclude the possibility of dirt getting into the oil and malfunction of the bike after each walk, you need to wipe the legs of the forks near the anthers.
Also, the bike fork can be adjusted by sag or rebound (if available). However, as experts note, this procedure should be performed in stages: after changing each parameter, you should check the progress of the bike. Otherwise, the rider may miss out on the difference in travel, and the effect of fork adjustment will be blurred. It is worth noting that the masters advise to start adjusting this device from the neutral position, in which the rebound should be set halfway, and the compression arrows are unscrewed completely counterclockwise.
Work on replacing oil, foot oil seals, sealing parts, as well as on eliminating a malfunction of one of the components is accompanied by a complete or partial disassembly of the bicycle fork.
Bicycle fork device
Bicycle fork repair
A mountain bike, and indeed almost any modern bike today is difficult to imagine without a shock absorption system designed to effectively and affordably increase the handling and ride comfort of this type of transport.
Most often, bicycles are equipped with a front suspension fork, thanks to which it is much easier for cyclists to overcome road bumps, even at high speeds, while the load on the palms and hands during the ride is minimal. By minimizing vibration, a well-matched and aligned fork extends the life of other bike components such as the frame and steering bearings.
The service life of the plug itself can be extended several times through proper care and regular maintenance.
Fork routine inspection
Often, it is the prophylactic inspection of the fork that makes it possible to timely identify minor deviations from the norm in the operation of the device, and, accordingly, prevent a more serious breakdown. Typically, a visual inspection of the fork includes checking:
- dropout states;
- fork legs for dents, scuffs and other marks;
- oil seals (anthers) for mechanical damage and oil leaks from under them;
- pressure in air chambers;
- the presence and condition of the lateral backlash of the legs in the “pants”;
- the condition of the fastening bolts under the “pants” of the fork and adjustment knobs.
Then we remove directly the plug itself. It is important to ensure that the balls are not lost from the bearings when removing the fork. Any sharp object can be used to remove the tapered support ring from the fork stem. After that, you can start repairing or servicing the plug.
Next, consider the procedure for disassembling the fork (as an example, a spring-electric fork will act):
- The lower fixing bolts are unscrewed using hexagons.
- The preload spring force adjustment bolt is unscrewed (it is important to remember the bolt stroke).
- An elastomer is obtained, which is assigned the function of limiting the travel of the spring (sometimes, if necessary, you can change the size of the elastomer by cutting).
- The bolts are unscrewed and “pants” are taken out. In this case, you need to monitor what flows out of there (dirt, water, oil).
- Anthers are taken from the “pants” with a screwdriver, as well as bosses, which for this need to be rotated around their axis.
Further, all components are checked for cracks or other damage and washed with kerosene. Items requiring lubrication are treated with an appropriate material. It is worth noting that it is better to lubricate the spring with a thick grease, which will increase the efficiency of the bicycle fork.
Some cyclists even go through only purchased forks, trying to individually debug the device.
The fork assembly process is performed in the reverse order of the parsing process, so we will not describe it.
It is better to entrust the procedure for replacing the fork on a bicycle to a qualified specialist or perform it under the supervision and according to the recommendations of the master.
- Those who ride a bike until the last “breath” of transport, and only when all systems completely fail, think about repairing the device.
- Those who carefully monitor the condition of the bike, follow the rules for caring for it and prevent any breakdowns.
It is no secret that the approach of the first type of owners ultimately costs much more, because often it is necessary to replace the components of the bicycle that are not recoverable. In addition, there are times when the bike can no longer be saved.
In principle, experienced users are quite capable of handling fork repairs on their own, because over time, every cyclist who shows an interest in his transport will remember the name and functions of the parts, and it is no longer difficult for him to find the cause of the problem. If there is no relevant experience and skills in repairing a bicycle, then you should not experiment and it is better to contact competent specialists. In addition, ignorance of the design features of the fork itself can lead to difficulties in eliminating its breakage.
This video review will help you consolidate the acquired skills: