sinteredth 3,0mmone pieceTUNING RACE – for professionalsProduct descriptionAttention all power hungry tuners, your waiting is over! The tuners MMW have already written history with their 7 plate motorcycle style clutch for the LAMBRETTA, winning SCOOTERING magazines test for ‘heavy duty clutches’. The Hartz4 clutch is the small frame motor equivalent: A 4 plate motorcycle style clutch. Theoriginal clutch that the small frame motors are equipped with have three friction plates. The higher performance clutch plate combinations have separation problems due to a lack of space for their extra plates. The Hartz4 clutch solves this problem through the use of a sintered clutch friction plate surfacing thatis produced using a special mix of materials and have more grooves to channel excess motor oil away from the fiction plate contact area. The improved oil channelling raises the thermal range of the clutch, the thinner and tougher friction plate surfacing keep the separation distances lower, e