- Katılım
- 26 Mar 2018
- Mesajlar
- 9,957
- Motosikleti
- 2022 Suzuki V Strom 650 (DL650)
Yağın çökmeye cok etkisi yok diye biliyorum? Yağ miktarı ve viskozitesi sadece çökmenin (ve eski hale gelmenin) hızını ve amortisör yolunun sonuna geldiğindeki davranışını etkiliyor olmalı...daha düşük viskozite veya bir miktar az yağ koyarsan amortisör yumuşar bozuk yerlerde konfor artar ama iki kişi binince daha çok çöker bu seferde altı sürtebilir..
Soru:
Explain the effects of increasing or decreaaing air gap in a motorcycle fork.
Cevap:
In a **motorcycle front fork**, the **air gap** is the distance between the **top of the fork oil** and the **top of the fork tube** when the fork is **fully compressed with the spring removed**. Changing this air gap mainly affects the fork’s behavior **near the end of its travel**, not the initial part.
Here’s how it works and what happens when you change it:
---
## How the air gap works
* The trapped air above the oil acts like a **progressive air spring**.
* As the fork compresses, the air volume decreases and **air pressure rises**.
* Smaller air volume = pressure rises faster = **stiffer at the end of the stroke**.
---
## Decreasing the air gap (more oil)
**Effects:**
* **More progressive fork action**
* **Stiffer near full compression**
* Increased resistance to **bottoming out**
* Can feel **harsh on big hits**
* Reduces available fork travel slightly
**When this is useful:**
* Heavy riders
* Aggressive riding
* Track use
* Hard braking zones
* Big bumps or jumps
**Too small an air gap can cause:**
* Hydraulic lock
* Seal damage
* Very harsh ride
---
## Increasing the air gap (less oil)
**Effects:**
* **Less progressive fork action**
* Softer feel near full compression
* Easier to use full travel
* Increased chance of **bottoming out**
* Smoother over large bumps
**When this is useful:**
* Light riders
* Street riding
* Rough roads
* Comfort-focused setups
**Too large an air gap can cause:**
* Excessive bottoming
* Reduced control under hard braking
---
## What the air gap does NOT affect much
* Initial fork stiffness
* Sag
* Low-speed compression damping
Those are mainly controlled by:
* Fork springs
* Oil viscosity
* Damping valving
---
## Simple summary
| Air Gap | Fork Feel |
| ----------- | ---------------------------------------- |
| Smaller gap | Stiffer at end of travel, less bottoming |
| Larger gap | Softer at end of travel, more bottoming |
---
If you want, tell me:
* Your bike model
* Rider weight
* Riding style (street, track, off-road)
I can suggest a **starting air gap** for your setup.