stock 400ex sprocket size

[hd400ex00]

i was thinking of putting some 22 kenda klaws out back and plan on putting a new chain and sprockets on too. what are the stock sprocket sizes and any sugestions as to drop a tooth or add one. i am looking to get it a little faster. any help greatly apeshiated thanks.

[lghickman21]

the stock gearing is 15/38 on your bike i believe. the taller rear tires should in theory make you bike "faster" but it won't be quicker. i would personally put a 14 tooth front sprocket on it to gain some of your torque back.

[miller821]

Originally posted by lghickman21
the stock gearing is 15/38 on your bike i believe. the taller rear tires should in theory make you bike "faster" but it won't be quicker. i would personally put a 14 tooth front sprocket on it to gain some of your torque back.
Ya personally I would go with the 14 to, but to make it a lil faster on top end you can go to a 16 front.

i have a 10 on my front.

[miller821]

Originally posted by banshee91
i have a 10 on my front.
You kidding me?????????? Jeez you must have torque like no other.... Whats your top speed now???

[04TRX400EX]

Originally posted by banshee91
i have a 10 on my front.

You have a 10 tooth front sprocket :eek2: Holy sh*t that thing has to have some torque but what's your top speed, like 40?


If you're running 22's on back, you could go down to 14 tooth front. From '99-'04, 400EX's came stock with a 15/38 setup. Top speed is around 65mph. A smaller front will aid in torque, but you'll lose about 7-8mph. Going to a larger sprocket (ex. 16) will give you more top end but result in a slower launch.

It all depends on your riding conditions. Some trails ask for high-speed gearing (16/38), where slower riding like sand dunes are better suited for a 13 or 14/38 gearing.

[hd400ex00]

what size chain would i use if i run a 14/38 and how about a 13/38 i normally dont do any top speed runs. Any recomendations on brands for sprockets and chain. thanks again

[nastyn8]

i did the same with my 2005. 22 inch bear klaws. mine came stock with a 14 tooth sprocket up front. with the 14 it had no bottom end torque. i dropped to a 13 and it helped out a little bit but it was nearly the same. but it will go through almost anything. bear klaws are excellent tires. If I was you I would get a 14 and if that doesnt give it what you want try out a 13.

Good Luck:)

[Flyin-Low]

As for sprocket and chain brands, I just buy the cheapest things i can find... Ive never had a chain snap or a sprocket break. And i ride HARD. :macho

-Martin

LOL

I was jokeing, but i do have a 11 or something around here, i might put it on for a quick try.

[nastyn8]

Originally posted by banshee91
LOL

I was jokeing, but i do have a 11 or something around here, i might put it on for a quick try.
i was goin to call bs but i felt like being a good person.
when i went to get a 13 at the local honda shop i agued with them for 15 minutes that they actually made them.
i had seen them in catalogs but they were out of stock.

[miller821]

Originally posted by banshee91
LOL

I was jokeing, but i do have a 11 or something around here, i might put it on for a quick try.
Lol that woulda been crazy dog, but still 11 or so thats still way low.

[nastyn8]

here is a picture