I wanted so badly to find a reason to not like this thing. I failed miserably. This thing is incredible. There is no other product out there that looks so simple yet changes the characteristics of a bike so drastically. Installed on my 2002 YZ250. Installation is a breeze. The instructions are straight forward and took me about 30 mins (including the time to unwrap the Rekluse and walk out to the garage!). Initial setup is very easy as well and Rekluse provides clear instructions on setting up free play gain and how to break the clutch in. Now on to the good stuff! I bought this thing after pouring over thousands of reviews and doing a ton of research. Once I found out about the 30-day trial period, there was no reason for me not to try it out. My worry was that this would make me into a 'lazy' rider. I was happily mistaken. I do mostly tight woods riding and enduros and this thing just plain ROCKS! It perfectly modulates the clutch in slow tight stuff and lets you concentrate on actually riding and missing trees instead of keeping the engine running and the clutch in the sweet spot. It forces you (in a good way) to keep more momentum through tight corners mainly by making it easier to stay a gear higher. I was also worried that this clutch would take away my use of the 250's awesome slow low end power. My worries vanished instantly here as well. The clutch grabs and holds very low in the RPM and lets you use every bit of power from just off idle all the way to redline. The ONLY downside to this product is that the clutch pull gets a lot harder. But this is not an issue for me AT ALL because with this thing, you are able to stay off the clutch a lot and let the Rekluse do the heavy lifting, but you retain full manual clutch control when you need it! I was surprised to find out that you still retain full normal engine braking with this installed. I was shocked at this since most people say they were blowing turns due to lack of engine braking. I found the complete opposite. While yes, if you are going downhill and lock up your rear tire, the Rekluse will release and you will freewheel downhill. But you can re-engage the clutch instantly without even speeding up. All you have to do is pull in the clutch, rev the bike and let the clutch out and the Rekluse will grab again and engine braking resumes. It becomes very intuitive once you ride a bit. I found the release point very predictable and the clutch releases so low in the RPM where a 2 stroke doesn't give much, if any, engine braking anyway. I would recommend this product to anyone who is a solid tight woods/enduro rider looking to step up the fun factor of riding. I WOULD NOT RECOMMEND THIS PRODUCT TO ANYONE WHO DOES NOT ALREADY KNOW HOW TO FULLY USE A CLUTCH. This thing should NOT be used as a crutch for someone who can't properly use a clutch on a dirtbike. This product won't magically make you be able to climb hills that you couldn't get up before. It will simply help seasoned riders step up their game. I left the factory springs that came in the Rekluse and am very happy with the performance. I may try the different springs and/or wedges just out of curiousity. My only worry going forward with this product is durability. I have absolutely no reason to doubt its durability and reliability; I just hope it keeps performing this well for years to come because this thing wasn't exactly cheap. Like many have said before me, I wish I had bought this thing sooner. It is expensive, but I have already found it worth every penny. If you are even remotely thinking of purchasing this (which I assume you are if you are reading this review), I say GO FOR IT!!