Jagwire Housing End Caps

You need to measure the outer diameter of your current cable housing. Derailleur housing is typically 4.0mm, while brake housing is usually 5.0mm, but it is best to check your specific bike setup before ordering.

The lined caps feature a small nylon insert that reduces friction between the cable and the housing end. This creates a smoother shifting or braking feel and helps protect coated cables from premature wear.

Yes, these are designed to work with standard steel and coated cables. The nylon liner is particularly beneficial if you are using high-end coated cables, as it prevents the metal cap from scraping off the coating.

It is highly recommended. Over time, the metal can deform or the internal liner can wear down, which compromises the seal and introduces friction. Replacing them ensures your new cables perform exactly as intended.

Alloy caps are significantly more durable and less prone to cracking under the tension of your cable system. They provide a more secure, long-lasting fit that won't degrade as quickly as plastic options.