You attach a small magnetic fitting to the end of the cable or hose being routed, then use the external magnet to guide it from outside the frame while feeding it through the internal channel. Because the magnet can pull the fitting toward it through the frame wall, you can steer the line around internal junctions and out through the correct exit port instead of fishing blindly.

No, this kit is specifically useful for bikes with internal cable or hose routing through the frame, headset or fork, which is common on many modern road, gravel and mountain bikes. If your bike only has external cable routing along the outside of the tubes, you will not need this tool for that purpose.

Internal routing is one of the more fiddly home maintenance jobs, but this kit is designed to make it approachable for a patient home mechanic rather than requiring a bike shop visit every time a cable frays or a hose needs replacing. It is especially useful if you own a bike with fully internal routing and want to avoid paying shop labour charges for every cable service.

Yes, the magnetic attachments work well for guiding both gear and brake cables as well as hydraulic hoses through frame channels, since the pulling method does not depend on what is inside the housing. This makes it a versatile addition whether you are replacing a shifter cable or running a new brake hose.

Rerouting internal cables without the right tool can mean disassembling large parts of the frame just to fish out a lost cable, which eats up hours and often costs a fair bit at a shop. This kit turns that job into something you can do at your own pace at home, which is especially valuable if you own more than one bike with internal routing.

Yes, this is a genuine LeBycle kit sold through DoGoodCo, with a strong magnet and durable guide cable built to be reused across many routing jobs. If any part arrives damaged or underperforms, our support team will help with a replacement as per store policy.