Introduction:
Mountain biking has evolved significantly over the years, with advancements in technology and design revolutionizing the way riders experience the sport. One such innovation is the dropper post, which allows riders to quickly lower their saddle for better maneuverability and control. However, one common issue that riders face is cable wear, which can be caused by internal or external routing friction. In this article, we will explore the differences between internal and external routing, and how they contribute to dropper post cable wear.
Internal Routing:
Internal routing involves running the dropper post cable through the frame or seat tube of the bike. This method offers several advantages, such as a cleaner and more streamlined appearance, as well as reduced risk of cable snagging. However, it also has some drawbacks that can lead to cable wear.
1. Frame Material: The material of the frame can impact cable wear. Frames made of materials like aluminum or steel tend to have more friction, which can cause the cable to wear down over time.
2. Cable Length: Internal routing requires a longer cable than external routing. This increased length can lead to more friction, as the cable has to travel a greater distance through the frame.
3. Cable Joints: Internal routing often requires the use of cable joints or ferrules to connect the cable to the dropper post. These joints can create additional friction points, which can contribute to cable wear.
External Routing:
External routing involves running the dropper post cable along the exterior of the bike, typically through guides or housing. This method has its own set of advantages and disadvantages when it comes to cable wear.
1. Cable Length: External routing requires a shorter cable than internal routing, as it doesn’t need to travel through the frame. This can reduce friction and cable wear over time.
2. Cable Material: External routing allows for the use of high-quality cables that are less prone to wear and tear. Additionally, the cable can be replaced more easily without the need to disassemble the frame.
3. Guide and Housing: External routing often requires the use of guides or housing to protect the cable from damage. These guides can create additional friction, but they also help to prevent the cable from getting tangled or snagged.
Conclusion:
In conclusion, both internal and external routing have their own set of advantages and disadvantages when it comes to dropper post cable wear. Internal routing offers a cleaner look and reduced risk of snagging, but it can be more susceptible to cable wear due to frame material, cable length, and joint friction. External routing, on the other hand, may require additional guides and housing but can use higher-quality cables and offer easier replacement. Ultimately, the choice between internal and external routing will depend on the rider’s preferences, bike setup, and the specific conditions in which they ride.
