Evil Engineering HT Beltdrives

Then we installed the clutch hub, and secured it in place with the main shaft nut. With both the front pulley and clutch hub in place we took a straight edge and placed it on the outside edge to check for belt alignment. We needed to shim out the front pulley .020-inch. If needed the kit comes with six different shim sizes to mix and match for the right size.

To make installing the belt easy, we removed both the front pulley and the clutch hub from the bike. Using the Spread-Her tool (thanks Evil Engineering for this tool) we placed the belt around the two pulleys and then placed the tool between the two and tightened the adjuster nut on the tool until it was tight.

The idea was to install the two pieces with the belt as one. It is impossible to slide the belt onto the pulleys once they are on the bike.

All we needed to do was place the clutch hub on the splines, then tighten or loosen the nut on the Spread-Her tool until the front pulley lined up with the mainshaft. With both the pulley and clutch hub installed with the belt, we installed both the mainshaft nut and the clutch hub nut, both were treated to some threadlocker.

Here is a look at the clutch plates, you can see how the friction material covers the whole plate giving a better hold on the clutch.

Next, we installed the clutch plates starting with the thickest steel plate followed by a friction plate and repeated this step until all the plates were installed.

Next, we installed the pressure plate, there are four styles to pick from, we went with the Twisted. Then depending on the size of your engine, you'll need six, eight, or nine springs. Six springs are recommended for 80ci up to 100ci, eight springs for 100ci to 145ci, and if you need a little more add the ninth spring.

With the adjuster lock nut set if any fine adjustments are needed then we can do this at the cable.

The last thing was the clutch basket cover, it looks good without it, but this just helps keep your leg out of the springs when you come to a stop and put your foot down. There are 12 small 1/4 inch long screws that hold the cover in place.

There you have it, one Evil looking beltdrive. We like the look a lot and once we fired the bike we could tell a difference in the drive noise being lower and after just a few miles on the bike the clutches felt like they could hold a Mac truck. I want to point out that due to the design of the HOT belt and pulley it would have been impossible to install this unit without the Spread-Her tool. The cool thing is we were told by the guys at Evil Engineering this tool could be used with any open beltdrive setup.