PowerPack IRS Spool

The PowerPack IRS Spool is custom designed for the the PowerPack Engine Drives and will bolt  to any PowerPack J-frame,  further extending the versatility of the PowerPack engine drive system.
 
 The PowerPack IRS Spool will mount standard 6 bolt, 5.25" bolt circle sprockets in 1 pc. or 2 pc.  split designs with  a 4.563" center hole.
Spool sprocket flanges are available with your choice of drive sprocket:  #41/420 or #530 chain sizes.  (Sprocket is not included) 
Includes  a  220mm rotor and single piston hydraulic disc brake caliper and  features a built in parking brake. 
Designed for Mazda Miata Axles that use the 4X100mm bolt pattern.
Uses a 4 bearing design and huge 1.375" splined axle. 
Includes all  the mounting hardware for the sprocket, brake rotor and axle studs. 
 
The best way to get IRS for your PowerPack Powered Projects.