Primary Drive Front Sprocket

Choose a machine

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

Use one of my Saved Machines
Primary Drive Front Sprocket
  • View Larger
  • Video

Primary Drive Front Sprocket

Our Price: $5.99$8.99

MSRP: $8.99 - $9.99 - You save up to $3.00 (33% off)

View Product Details

Select type, year, make and model above

Live Help
  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

  • Warranties

    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

  • Have questions?

    Live Help (Leave email if after hours)
    Email: [email protected]
    Call us: 1 800 336-5437
    7am-7pm Mon-Fri 8am-4pm Sat (Mountain Time)

Details

    Primary Drive Front Sprockets are made to meet or exceed O.E.M. specifications. Using high-grade hardened steel, Primary Drive brand front ATV and motorcycle sprockets offer durability and value. Primary Drive Front Sprockets are precision machined for a perfect fit.
  • Durable replacement front sprocket for motorcycles and ATV's.
  • Manufactured to O.E.M. specs using high-grade hardened steel.
  • Precision machined for a perfect fit.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Primary Drive Front Sprocket Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.8 / 5.0
1,073 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
886
144
30
6
7
Value
4.9 / 5
Durability
4.8 / 5
Fitment
4.9 / 5
Performance
4.8 / 5
Recommend it?
Yes (321)
No (4)
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great Sprocket
Very easy to install, works great and cant beat the price.
July 10, 2019
Morro Bay, CA, US
Purchased
1 year ago
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Must have
Gave the bike the low end it needed. First gear is now good for tight technical rocky stuff. Now there’s a sweet spot in second gear that I never had before. I definitely like trail riding the bike a lot more.
July 6, 2019
Twin Falls , ID, US
Purchased
4 weeks ago
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Good quality
The part fit as it should and works well!

-m-DIRT BIKE--
July 5, 2019
Salem , OR, US
Age: 25-44
Purchased
3 weeks ago
Gender:
Male
Weight:
221 - 250 lbs.
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Perfect
For right on no issues love there products always work great recommend to anyone looking for a replacement

-m-1999 HONDA CR250R--
July 4, 2019
ANDOVER, OH, US
Age: 15-24
Purchased
3 weeks ago
Gender:
Male
Weight:
251 - 280 lbs.
Height:
6'1 - 6'3
Value
4 / 5
Durability
5 / 5
Fitment
3 / 5
Performance
5 / 5
Recommend it?
Yes
Great part for the Price, no problems so far. I have ordered a lot of products for this site and am highly pleased with the packaging, the part, and the fast delivery!
July 3, 2019
Centerville , TN, US
Age: 15-24
Purchased
1 month ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great value
Purchased to replace an identical Primary Drive sprocket purchased six years ago. the old one was still usable, I just changed the rear to more teeth, so I wanted all-new components.

Bonus: I was able to remove the front sprocket bolt with just my fingers, so it was a timely replacement. <:-O

-m-2003 KAWASAKI KLX400SR--
July 3, 2019
Boulder, CO, US
Age: 45-64
Purchased
2 weeks ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
>6'7
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Works great
Easy install self explanatory really. Fits perfectly on my bike
June 26, 2019
Indianapolis , IN, US
Age: 25-44
Purchased
4 months ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Very nice product! Works perfectly and I highly recommend it.
June 21, 2019
Palm Bay, FL, US
Age: 25-44
Purchased
1 month ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Recommend it?
Yes
As expected
Easy to install, worked well, really like the difference it made.
June 13, 2019
FERNDALE, WA, US
Purchased
1 month ago
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
98 banshee
Ordered this for my 98 banshee. Good fit and looks good.
June 7, 2019
PRATT, KS, US
Age: 45-64
Purchased
1 month ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
5'10 - 6'0
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 28 questions Browse 28 questions and 103 answers
13T front sprocket - 1 side has tooth number and PD logo. Other side is cupped. Which side goes IN when installed?
Robert M on Aug 28, 2016
BEST ANSWER: The cupped side generally goes in towards the machine and the logo faces out away from the machine.
Has anyone purchased this sprocket for a 2014 RMZ 450? If so how does it fit/function compared to the Renthal? I'm worried about this being a cheap part.
Randy R on May 12, 2017
BEST ANSWER: We have used these sprockets on everything from 125's to KTM 450's no worries...great sprocket and wear as good or better than the others.
what is the meaning of the size?
Côté E on May 23, 2019
BEST ANSWER: A front sprocket should have 2 sizes. The chain size 520, 530 etc. And the number of teeth 14t 15t etc. A smaller front sprocket will provide more accelleration, but a lower speed and a larger tooth more top speed slower accelleration. Rear sprockets are the exact opposite.
I need a sprocket for a 2000 Honda xr650r. I only see a option for 14t and 15t. Is there possibly a 13t available? Thanks
Taylor A on Jul 19, 2018
BEST ANSWER: I have searched for a 13 tooth Primary Drive Sprocket for your machine application and unfortunately there is not one available in Primary Drive. I also searched other brands we carry and I am only showing 14t and 15t.
05 400ex, installing and the sprocket alignment is way off, im not sure what i am missing. Anyone else have this issue?
robert d on May 8, 2018
BEST ANSWER: You must be missing something. On all my bikes, they go right on and they automatically line up.I’m wondering if yours needs a spacer. Your shop manual should show what you need.
does it come with the hardware needed to install?
zach f on Jan 21, 2017
BEST ANSWER: It's only the sprocket. The hardware to install should already be on your bike. If your missing parts, you will need to look at an oem schematic and buy the missing hardware.
Does this include the clip that holds the front sprocket on?
Jeff B on Aug 13, 2017
BEST ANSWER: No sir what you see is what you get , hope this helped you
If you buy just a front sprocket do you need a new chain?
Ethan L on Dec 9, 2018
BEST ANSWER: If you are replacing the sprocket because it is worn then your chain may be worn as well. You can check your chain for wear by grabbing it at the 3 o'clock position on the rear sprocket and pulling straight back, if the chain pulls away from the sprocket enough that you can see daylight between the chain and sprocket then you probably need a new chain. Stiff or binding links are also a sign that your chain is near the end of its life. On the other hand the new sprocket is less than $10. If you are changing thevsize of the sprocket then put on and ride.
I just got a set for 2016 Yz 250f, front sprocket is thicker than oem. And the locking washer that folds up against the nut will not fit on the splines.

Will this sprocket stay on with just the nut?
Nicholas E on Mar 26, 2017
BEST ANSWER: Check to ensure you have the countersunk side facing in towards the shaft. This part only fits one way. Will not stay on without the retention washer properly installed and tab bent.
2019 KTM 450 sxf stock is 13 T. Want to try a 14 T, looks tight? Will it clear the chain guard?
Dwayne S on Mar 3, 2019
BEST ANSWER: It will not rub the chain guard if installed properly.
Does this come with a new locking washer?
Richard B on Feb 24, 2019
BEST ANSWER: No it didn’t. I would recommend a prevailing torque nut manufactured by Eagle Mike. It eliminates the need for the washer.
I have a stock 2001 Raptor 660. Looking for more bottom end torque for Oregon dunes, what f/r sprocket size would be optimal? Thanks for the help!
Christopher L on Apr 8, 2017
BEST ANSWER: Going 1 fewer tooth in the front is close to going 3 more on the axle as Brenda has stated. You need to count your teeth and see where you are at to begin with because you may not be stock gearing. For what you want you need to go 1 tooth less on the front or more teeth on the rear. I agree 2 teeth more on the rear would probably be good. Keep in mind you will have a larger rear sprocket so if your rear said plate is already next to your rear sprocket you might have to shim it, bend it or buy a new one. If you go with a small front sprocket it is true you will have faster wear on the sprocket and chain.
Will this last a long time?
A shopper on Mar 26, 2019
BEST ANSWER: They last as long as any other big name sprocket. Chain maintenance is your friend as always.
How do I change the front sprocket?
A shopper on Jun 27, 2018
BEST ANSWER: I just put this sprocket on my 2012 KX250F yesterday and on my bike a little circlip was holding it on tusk sells these awesome pliers that makes it really easy to take on and off once you take that circlip off it slides off really easy if its a circlip style like mine not a nut i recommend just buying a new circlip since there only a dollar or two and mine was pretty worn and there easy to lose your gonna want the tooth count and primary drive logo facing you not the engine and mine slid on a little tight but it fit then you just put that circlip back on and your ready to rock
so how heavy is it, is it light, I have been told these rob power is that true, I want it for my Yamaha warrior 350, I know the warriors are heavy so I don't want to add any more weight then wanted, is it more heavy then the stock sprocket?
korbin m on Jun 3, 2018
BEST ANSWER: ll C/S sprockets are steel and a sprocket that has the same # of teeth should weigh within 5% of each other. Unless the one you are replacing has holes drilled in it to lighten it I doubt there would be more that 1 ounce difference. Mine was on a KTM so I cant be sureabout the Yamaha, but I would say they were equal weight in my case.
I bought this sprocket for a 2016 yz250fx and its does not fit. the counterbore on the back side is not big enough and rub the engine case, Anyone else have this problem?
rob h on Dec 3, 2017
BEST ANSWER: I bought frontsprockets for my KTM and had no problem with them. Make sure your ordering information is correct.
I have a 2005 400ex and I purchased the "primary drive steel front sprocket"(just like the pictured). I don't see anything showing which side goes in toward engine. So the side that has the logo and teeth# stamped also has the raised lip(just like the picture shows) does that side face the engine or does that side face away from the engine?
Thanks
A shopper on Apr 15, 2019
BEST ANSWER: Teeth # goes away from the motor. So you can read the tooth # when it is on the bike
Whats the torque for 2019 KTM 300 TPI front Sprocket bolt?
A shopper on Feb 16, 2019
BEST ANSWER: Should be in your owners manual and if you don't have one i can pull mine up on the kawasaki website so maybe check there or i know rocky mountain sells manuals
What brand is this front sprocket? Sorry
Lazaro R on Mar 1, 2017
BEST ANSWER: The brand is Primary Drive.
This looks different than the original KLR 650 sprocket. Will this fit an 05 KLR 650?
A shopper on May 16, 2019
BEST ANSWER: This is an aftermarket sprocket so it will look a little different than the OEM one. However, this will fit your machine. You will need to enter in the make, model, and year of your machine in the drop down boxes above the product image. Then select the tooth size. If you want the OEM sprocket you can locate that through the OEM parts tab.
Is this a 525 sprocket? Oem is 520 for my bike. I got a new rear sprocket which is 525 and want to know if I put a 525 chain will it mesh with 520 front?
casey T on Feb 6, 2019
BEST ANSWER: This sprocket is for use with 520 Chains.
What is the stock size for the front sprocket on 2018 Yamaha ttr110E?
A shopper on Sep 17, 2018
BEST ANSWER: The stock size for the front is 14 tooth.
Just curious if my 08 Honda 450x primary drive sprocket will also fit my 07 Honda 250f? Are the inner teeth the same size?
Derek B on Jul 16, 2018
BEST ANSWER: They will be different part numbers from the 450X to the 250F.
i have a 2016 rmz 250 will the 2015 model of the sprocket fit?
Tyler W on Sep 30, 2017
BEST ANSWER: They are different.
What size is the front sprocket on my 04 blaster?
mike b on Feb 22, 2017
BEST ANSWER: Your stock front sprocket is a 13 tooth.
what is the factory sprocket size for a 08 crf 250 r ?
Jimmy A on Feb 19, 2017
BEST ANSWER: Factory sprocket sizes are 13/51.
going from 22X11-9 rear tires to 20X10-9 on 1993 Suzuki Quadrunner 230. Front Sprocket is 11T from factory. Do I need to change to a 13T or what? Or will the tire change make any difference?
Greg T on Feb 19, 2017
BEST ANSWER: A smaller tire size in theory will yield less speed. But the size difference here won't make much of a noticeable difference.
How do I get my machine profile specs?
john o on Oct 12, 2016
BEST ANSWER: To see your machine specs you will need to log in into your account. Then click on Machine Profiles, this will show the machine(s) saved on your account. Next the machine you will see a tab that says "See machine specs" once you click on that it will show you your specs.
RM Cash ProgramParts Finder