the best sprocket for a drag

[sparks400ex101]

i want to get a new sprocket for all around use but i want to help my top speed out , we drag on this path thats 300-400ft long should i go for a sproket with better acceleration or one for top speed, what size do i need front and back and , what brand do you recomend and how long does the instalation take?:confused:

[Ex'r Marlin]

There are a few MX guys on here that should answer the question better than I can, but I would think with your Holeshot MX's, and soon to be 416... You may like the acceleration with a 16 tooth front sprocket versus the stock 15 tooth.

This will also be a fairly quick installation... Loosening the axle carrier, rotating it til you have alot of slack, removing your front sprocket guard, removing your 15 tooth sprocket and replacing it with your new one, replacing your sprocket guard, and adjusting your chain for proper slack... That should be it!:)

I am a big fan of Renthal sprockets... Both front and rear.:)

Note: I would think for a 300 to 400 foot drag race, you would want acceleration versus top end... But with your stock setup (15/38), I think you may spin your rear tires too much.:confused: :D

[sparks400ex101]

yeah i figured you are right thanks for replying to my question, actually i know it says holeshot mx in my sig, but recently i swaped out fo holeshot xc's & the gearing is stock if that helps

[ill_lil_romey]

A 16 tooth front wont give you more accel, it give you a little more top end. I have one and I love it. It would be great for drags and I think you would like it. I don't know how it would pull with a stock motor but I never had any noticable loss of bottom end power. With my 16 I pull 6-7 bike lengths over stock on top.

[ChadEXer]

If your just wanting to be the fastest guy in a 300ft drag race, then you want to drop the front sprocket to a 14t! Even if you do get or have a 416 kit. Some guys insist the 16t is faster, but I promise you if you do timed runs with a 14 and 16t front the 14 will consistently give you faster times!! I know this from a lot of experience!!! believe me, lower gears are better for drag racing! My 505 has enough power to pull a 17t front sprocket if I wanted but I still run the 14t in the drags and get faster times with it!! The best all around gearing for a 400EX is the stock gearing!!

[sparks400ex101]

thanks a bunch , is 14 stock? or is stock 15?

[ChadEXer]

15 is stock.

[Str8Wicked]

15 is stock, the 14 is dropping one tooth.. I run a 14T on my 400 mainly because I do mostly dune riding. In the dunes I like the bottom end power a lot more than the top end power. For a drag you need a lower tooth unless you have a long enough drag where the top end will really come in handy. Most drags thou you need a lower tooth which will get you in front right away...

[Ex'r Marlin]

Originally posted by ChadEXer
If your just wanting to be the fastest guy in a 300ft drag race, then you want to drop the front sprocket to a 14t! Even if you do get or have a 416 kit. Believe me, lower gears are better for drag racing! I knew someone on here would have a good answer! :cool: Thanks Chad!:)

[sparks400ex101]

thanks everyone!:D

[sparks400ex101]

ok heres the deal i found a renthal 14 tooth front sprocket on rockymountainatv for 22 dollars is this good, and what about the rear?

[Ex'r Marlin]

I would think keeping your rear spocket would be ok... Unless you plan on replacing the chain too. I would recommend going with new chain and sprockets, especially if you have a lot of time on them.

Anyway, Renthal makes a nice aluminum rear sprocket that I have been having success with... But MX guys may have a different answer.

BTW... If you are out shopping for prices, I would include C&D Racing in your search, if you haven't already.:)

[sparks400ex101]

thanks i just read a review on this site about droppin it to 14 tooth may cause a loss of top end i dont really care to loose top end i want to gain a little bottom and top