Motorcycle Glossary
Front fork
In Turkish: Ön maşa
In short
The front fork is the twin-tube telescopic assembly that holds the front wheel and provides front suspension with springs and oil.
There are two main designs: conventional (thin tubes at the top) and upside-down (USD) forks (thick tubes at the top, stiffer). The fork is clamped to the steering stem by the upper and lower yokes (triple clamps).
- Fork oil: provides damping; its viscosity and level are in the manual, and it degrades over time.
- Fork seals and dust seals: an oily film on the inner tube means a leaking seal.
- Scratches or rust pits on the inner tube will quickly ruin a new seal too.
Also known as (including Turkish names)
- Ön çatal
- Ön süspansiyon
- Telescopic fork
- Maşa
Related products
Front Forks & Seals
Last updated: October 9, 2026
