Rock Gas Cap

Rock Gas Cap
Rock Gas Cap

$21.77 - $39.99
11% Off - Save up to $5.00

Description See Also: 27 Reviews 3 Questions Fitment
Item #RCK000A

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27 Reviews
3.2 out of 5 stars
5 Star   9 4 Star   7 3 Star   1 2 Star   2 1 Star   9
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All Reviews
Ogtsi Verified Purchaser

The cap i ordered does not allow pressure that builds up in tank to escape through the vent. Only air to enter as fuel is used. Pressure tends to build up a bit in tank as weather heats up and causes floats to not seat and bowl to overflow leaking gas onto engine.

Eric Verified Purchaser

This Gas cap fit perfect, looks great too. If you put the breather tube on properly, it won't come off. Much better cap than the stock one.

BigBri44 Verified Purchaser
California, USA
Gas Cap

The cap was a perfect fit except the breather hose wouldn't stay on. switched it out with a softer type hose & no more problems

Looks grear!

It was a very good fit on my cr250r it is a bit heavy but mine doesn't keak. I put a dab of super glue to keep it from coming off

skippy Verified Purchaser
Decent product

a decent overall product but its extremely heavy and the vent on both of my did not vent and i had to replace them with a different style vent. but a very stylish cap

BrappinIke Verified Purchaser
Looks sick

Overall this product definitely makes your ride look good. I gave it a 4 out of 5 because the threads take awhile to lineup but it still is a good tight fit. This was on my yz 125

Ty55 Verified Purchaser
Wilmington, NC, USA
Nice gas cap

Purchased after getting water in my tank probably from that stupid stock hose they put on a stock cap. It is a gas cap and the balck cap looked good, not alot to say about a gas cap?

scott Verified Purchaser
Reno nv
Great Purchase

Bought this for my 2006 SE blaster,Tanium. looks awesome on the black tank, read review, Mine does NOT leak, and the vent tube after I put it on, it stayed on. Just looks amazing.

DrWu Top 1000 Contributor
Big Bear, CA
Looks great

Along with new red bars, this (red) gas cap gives my Raptor Rosie a clean look. She's all done up with a fresh coat of lipstick. Mmmm Mmm

Fairview, PA
Very Cool Cap

This gas cap is great the one way valve eliminates the long vent hose. If that wasent enough it also makes the tank look refined. I love the look of the aluminum as well!!


Doesn't fit good, leaks and for the money you would think this product would be better, the only thing that's good about this gas cap was the look!!!

Rock gas cap

They gave this gas cap the right name. Rock solid and well worth the money. throw one on your bike and forget its there.

SMP387 Top 250 Contributor
Eagle Creek OREGON


stafford ct

i bought this and the vent stem fell right off and i lost it... but before i lost it the thing leaked gas everywhere and stripped my gas tank no matter how carefully i put it on...dont waste ur money

Las Vagas, NV
Don't buy

I bought this cap for my 03 crf 450 and it leaks gas but my brother tried it on his 07 crf 450 and it doesn't leak.

Lake Isabella, CA
Don't waste your money on this!

Looks good and screws on good, but leaks fuel all over out of the vent hose. Over all would'nt recommend buying this product to anybody.

Butte, MT
Don't waist your money!

The first day I had it on, the air vent tube kept falling off and just the motion of the bike made it leak. So I just went back to the stock cap. Don't waist your money on this gas cap!

Not so good

My first ride the hose came out and was lost it was pouring down rain> I was worried the rain would enter the tank.
Paid good money for this Rock Gas Cap and the hose came out on some rocky hills.

Belleville, IN

I got this gas cap for my yfz for christmas because i had some extra money left over and im now wishing i would have spent a little bit more money! I go for performance over looks and even though this cap looks good it leaks. If ever you have to prop your bike on its rear tires you will have a leak coming from the cap. So if i could do it again i would spend a bit more and get one that doesnt leak. Im kinda wishin i kept my OEM cap!

foxriderz Top 1000 Contributor
Ark City, KS
Great looks for the money

i bought this gas cap for my 250 and it looks awesome. it adds extra bling and is light and strong. but becareful, if u roll ur quad, set it up immediatley because gas will start to leak from it.

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3 Questions
Answered:   3
Not Yet:   0
Location: Wv
Q: I have an oversized tank on my cr250. I do not know what brand it is or how to even tell what brand it is. I was wondering if this would fit?
Over 11 months ago
Expert MotoSport Staff
Over 11 months ago
A: The Rock Gas Cap is a replacement for the stock cap on the stock tank. It may not fit a aftermarket tank depending on what brand of tank it is. I would recommend finding someone with a stock Honda CR cap you can try on your tank. If the stock cap fits this would fit.
Q: Will this cap fit on a Clark USA gas tank?
Over 3 years ago
MotoSport Staff
Over 3 years ago
A: Unfortunately it will not fit. With Clarke gas tanks, you have to use a Clarke gas cap. If you need a stock replacement gas cap for your Clarke tank, give us a call. If you are looking for an aluminum one, you can purchase one directly from Clarke here:
Q: Will this fit a 2004 DRZ400S for sure?
Over 9 years ago
My original cap is a 180 degree twist to lock.Meaning a half moon turn.This one looks like its a screw on.Meaning 360 degrees muliple times.
Top 1000 Contributor
Over 9 years ago Location: Charlotte, NC
A: no you cant because my brother has the same 4 wheeler and i bought this gas cap for him and i tryed to put it on his but it didnt work so we ended up putting it on my 4 wheeler.
Top 1000 Contributor
Over 9 years ago Location: Charlotte, NC
A: No it wont because i got 1 for my brother and he has a DRZ400S and we tryed to put it on and it didnt work so we ended up putting it on my trx250ex.
Over 7 years ago Location: stafford ct
A: i doubt spins about 4 full turns b4 its all the way down
Over 4 years ago Location: Reno nv
A: It does turn multiple on my blaster
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