Deaden that clatter when riding your bike down a trail?This sheath fits around your brake hose or gear cable on internal routed cables and dampens the sound to let you get back to concentrate on the trails ahead. â¢Available in 2 metre single bike or 10 metre workshop options.â¢Suitable for 4.0-5.0mm, brake cable housing, shift housing and hydraulic hoseâ¢8mm outside diameter.â¢Weight: Approx 11g per metre.