installing 14t front sprocket, do i HAVE to change rear and chain?

[kilabeez0]

Like i said, since i'm putting on a 14 tooth sprocket for some more low end do i have to replace the rear sprocket and chain? It's an 02 400ex. I ride pretty hard but they're in good shape. And i guess i have a stock case saver so is it worth getting an aftermarket billet one?:confused:

[adeptex]

Just put the 14 on and adjust the chain. The stock case saver will work fine.

[400Riderex]

hey i just put on a 14th tooth sproket on my 400ex and all u have to do it adjust the chain and u will be set. You do not have to change the size of the rear sprocket. I was very impressed on the difference of low end with the sprket. You lose some top speed but wow it is nice u will enjoy it:)

[kilabeez0]

well i know i dont HAVE to change them, but aren't u supposed to change both sprockets and chain at the same time? that's my actual question, sorry :p

[hondafox440]

Yes, you should change the front/rear/chain as a combo. Rocky Mountain sells combo kits (all 3 pieces in stock size) for 42 bucks.

[adeptex]

If your old sprockets are worn, they will wear the new one faster. But, if your old sprockets look fine then dont change them. Why spend all that $? If it wore your new 14T sprocket out faster, you would only be out 10 bucks or so. I change single sprockets all the time with no problems. Just my $.02