FIRST OF ALL HELO. THIS IS MY FIRST POST ON THIS FORUM. LOOKS LIKE A GOOD FORUM!!!!!!! ANYWAY I JUST PUT A 13 TOOTH UP FRONT ON MY 2007 250 KLX AND IT IS AN IMPROVMENT FOR SURE BUT I WOULD LIKE A 45 TOOTH FOR THE REAR. ANYONE KNOW WHERE I CAN GET ONE? I HAVE ALSO ORDERED THE TWO BROTHERS SLIP ON AN I CANT WAIT TO GET IT. IT IS ON BACK ORDER FOR TWO WEEKS[:@] ANYBODY ELSE OUT THERE TRIED 13 45?

 

get one for a klx300... bolts up perfect.. also if ya plan on gettin a larger rear sprocket plan on buying a chain also.

 

DO YOU THINK I WILL NEED A BIGGER CHAIN SINCE I WENT TO THE 13 UP FRONT? LOOKS LIKE THREE MORE TEETH IN THE REAR WILL BE FINE. IF I DO I WILL GET IT, I WANT MORE LOW END. I LIKE THE BIKE BUT PRETTY WEAK WITH FACTORY GEARING. CANT EVEN LOFT THE FRONT WHEEL OR EVEN THINK ABOUT A WHEELIE.[:'(]

 

you could also use a 47 tooth rear sprocket for the kdx. mine was off a 2003. it works fine but i run the stock 14 front. the 13 rev'd out too quick.. yes you definately will need a longer chain.

 

You will need a chain if you go with a 45 or larger. The chain is a snap it had a master link it's easy to take off and replace and you can keep your old one if you go back to stock gearing to resale it.

 

anybody out there have a 13 45 set up an 250 klx? if so what do you think. i want some low end but i also do a little road riding. i read in another forum that someone was getting 85mph at 9500rpm with this set up. also stated that the front would come up and bite you in first. looking for some more opinions before i purchase. thanks in advance.

 

Many of us are running the 13/45 setup. It is a definite improvement, but anyone that thinks the "front end will come up and bite you" is crazy. That ain't happnin'. I also doubt the 85mph @ 9500rpm. It'll get to 85mph indicated, but I would guess it would be a little higher on tach at that point. At the high end the gap between speed and tach starts to widen.

I ride mostly road with a few cherished miles offroad when I get a chance. The 13/45 setup is fine for both.

 

thanks for the info. i am getting on the phone with my local dealer to order chain and sprocket as soon as i am done here. pipe will be here in about two weeks and will rejet and do the air box mods. cant wait to get r done.

 

https://www.kawasakiforums.com/m_104..._2/key_/tm.htm

 

I opted to run 13/48 T with a 110 L Chain. Works well for me in the more technical and steep hillsides. Running the roads I still get 55mph @ 6500 rpm. And I still have the option to put the 14T stock gear back on the front with the same chain. Doubt that I will but it's available.