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The Park Tool IR-1.2 Internal Routing Kit works. It absolutely takes the pain out of routing stringy things through your bike frame. Sure, sometimes dental floss and prayers work too, but when they don't? When they don't, and the minutes turn to hours? When your family has gone to sleep and you're still no further along in your bike build than you were right after dinner and you question whether or not you really do want to be a part of this bike thing? Avoid that. Get this.
Includes Guide Magnet and Four Installation Cables
Route Any Internal Cable or Wire – With four configurations, you can route shift, brake, hydraulic, and electric cables, housing, and wire through any carbon, titanium, or aluminum frame.
Updated to Include E-Tube Compatibility