Bike Internal Cable Routing Kit Tool Quick Traction Guide Magnet for Bicycle Frames Shift Brake Inner Cable Hydraulic Hose

The reviewer discusses an internal routing kit tool, which they mention having multiple versions of from different manufacturers. They describe it as a kit containing various gadgets and ends for routing internal cables and hydraulic hoses. They state it is useful for situations where liners were not left in the frame during disassembly or when building a new frame. They note the kits can be fiddly but are effective for getting out of trouble. They also mention that the components from different kits are often compatible, allowing one to build a comprehensive collection.

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