hi all!

between the 2007 (square headlamp model) and current KLX250S (2010-current), is there any difference difference between the brake rotors (both front and rear) other that the design (old round type, slotted and the new petal type, cross-drilled)? are the bolt holes the same? clearances? outer and inner diameter? others?

i'm asking because i need to know if the rotors are interchangeable without any modifications, just direct bolt-on.

by the way, i'm from malaysia, way over the other side of the world. bought a pretty worn out 2010 KLX250S and need to restore it back to working condition.

thanks.

Andy

 

The rear one is not the same size.
Same caliper, you need to change the arm that hold the caliper if you want to interchange.

 

You can use an older rear rotor as a bolt on if you pick up the caliper carrier with it. I am running an old 220mm (I think) rear rotor with the old carrier, traded off for the larger rotor carrier (I didn't have the right rotor when I got the bike). I think the newer rotor is 240mm. I prefer the smaller rotor, requiring a bit more effort in braking, allows me better feel for using the rear brake on loose terrain. I think one of the hubs had smaller bolts, but I forget which, front or rear, new or old. I think it was the rear, since that was the one I changed out. I think I had to drill the older rotor out. Not difficult though.

You can find the 250/300 rotors for low buck, so that's a good way to go. Just remember to get the caliper carrier for the rear. I bought a rear rotor for less than $50 and I found a front rotor that was advertised as a rear for $20 on ebay. You won't find the petal cut rotors for that kind of money very easily.