ASD-00036BK Effortless Racing Clutch Kit (36 mm) - Fits Durango DNX408
Kit comes with Flywheel, Retainer, 7075 Aluminum Clutch Shoes, 3 sets of springs (1.1, 1.0, 0.9), Collet, Shims, and Nut.
$48.99 USD 

 
ASD-00034BK  Effortless Racing Clutch Kit (34 mm) - Fits Mugen, OFNA, AE, Kyosho 777, Losi, Hong Nor, etc.
Kit comes with Flywheel, Retainer, 7075 Aluminum Clutch Shoes, 3 sets of springs (1.1, 1.0, 0.9), Collet, Shims, and Nut.
$48.99 USD

ASD-00534ST STEEL FLYWHEEL KIT- Effortless Racing Clutch Kit (34 mm) - Fits Mugen, OFNA, AE, Kyosho 777, Losi, Hong Nor, etc.  This is a tuning option kit with Steel flywheel for a heavier rotating mass to smooth out the bottom end in high torque applications.
Kit comes with Steel Flywheel, Retainer, 7075 Aluminum Clutch Shoes, 3 sets of springs (1.1, 1.0, 0.9), Collet, Shims, and Nut.
$48.99 USD

ASD-00032BK  Effortless Racing Clutch Kit (32 mm) - Fits Kyosho MP9
Kit comes with Flywheel, Retainer, 7075 Aluminum Clutch Shoes, 3 sets of springs (1.1, 1.0, 0.9), Collet, Shims, and Nut. 
$48.99 USD