Over ride trans

[NN2]

I keep trying to read what I can about the over ride trans but I have not found out exactly how it works. How does the shifting work with them? What does the 1-5, duneable, blah, blah technical stuff mean? Are you still required to pull the clutch to shift or it eliminating that? Thanks in advance for enlightening me on this.

[dajogejr]

I keep trying to read what I can about the over ride trans but I have not found out exactly how it works. How does the shifting work with them? What does the 1-5, duneable, blah, blah technical stuff mean? Are you still required to pull the clutch to shift or it eliminating that? Thanks in advance for enlightening me on this.

 

There are two types of override trannys.

Dunable and regular.

 

First, the regular.

You still use the clutch to launch the bike, it allows for clutchless upshifts at FULL THROTTLE after it's launched.

When you're at the end of the run, you must pull in the clutch, then let off the gas. You might be able to get away with not pulling the clutch first a few times, but...eventually...you will wear and break or bend the shift forks.

And...most of them require you to slow down quite a bit...almost to a complete stop before you down shift.

 

 

Dunable.

Same on the launch, you need the clutch. Then, full throttle upshifts.

The main difference is you can let off the gas and not pull in the clutch..but if your motor is revving out past 8K RPM, you shouldn't do this too many times. It will not bend or break the shift forks, but it will wear them out sooner.

 

With a dunable, you can pull in the clutch, downshift...etc. You can ride it like a normal trans, with the exception of the previous statement.

 

Letting off the gas and keeping the clutch out (engaged) is also called backloading the trans. In other words, the engine is slowing the bike down, not the brakes.

 

Another person put it to me this way. You want the engine to always push the bike....if the engine is not pushing the bike, pull the clutch if you have a regular override or if you're going to be at peak RPMs on a dunable.

 

NOT ALL dunables are created equal...a lot of guys have had issues with them. WCR probably makes the best and most reliable dunables...

 

A LOT of folks do a good normal override. Including WCR, Rudy Kurtz, K&T, Redline...just to name a few.

[NN2]

Thank you. That's what I was looking for.