Jagwire Cable End Crimps

Yes, these are designed to fit standard 1.2mm diameter cables, which covers most modern derailleur shift cables and road brake cables. They are not intended for thicker mountain bike brake cables, which typically measure 1.5mm or 1.6mm.

While you can technically use a standard pair of needle-nose pliers to squeeze them shut, a dedicated cable crimping tool provides a much cleaner, more secure finish that is less likely to slip off over time.

Crimping is significantly faster and cleaner than soldering, especially in a workshop setting. It avoids the mess of flux and heat, and if you ever need to remove the cable for maintenance, you can simply snip the crimp off rather than dealing with a soldered lump that won't slide through the housing.

Primarily, yes. The gold finish adds a subtle, custom touch to your bike's build, but it also makes it easier to spot frayed cables during a quick visual inspection. It helps differentiate your cable ends from standard silver ones if you are color-coding your maintenance.

No, these are single-use components. Once they are crimped onto the wire, the metal is deformed to hold its shape; removing them usually damages the cable end, so it is best to snip the cable just behind the crimp and install a fresh one whenever you perform maintenance.