Stanchions are the upper tubes of a mountain bike suspension fork that slide in and out of the lower legs. These tubes are critical for the smooth operation of the fork as they house the internal springs and oil dampers. They are usually made from lightweight aluminum and often have a special coating to reduce friction. Because they move constantly, keeping them clean and free of scratches is vital for your suspension’s health.
For example, a rider might wipe their stanchions after a muddy ride to prevent dirt from damaging the rubber seals. If the stanchions become scratched, they can leak oil or allow air to escape, ruining the fork’s performance.
The diameter of the stanchions also dictates how stiff and strong the fork will be during heavy impacts. They are the most visible moving parts of a mountain bike and require regular care to stay smooth. Proper maintenance ensures your front wheel stays glued to the trail for better control.
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