MAGURA Disctube brake line 2500mm 90° for MT4/5/S/6/7/8Features: A special feature of the two piece disc is the patented interlocking of the outer and inner rings (Dovetail Interlink technology). The interlocking provides additional support for the inner ring if the outer ring expands due to heat. In contrast to floating discs, the torque is transmitted over the entire surface instead of just the rivets. The result is increased rigidity of the brake disc and heat dissipation that is much more effective