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Primary Drive Rear Aluminum Sprocket

Fits Your Machine

Displaying parts for your 2004 KAWASAKI KX250

Primary Drive Rear Aluminum Sprocket
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Primary Drive Rear Aluminum Sprocket

Fits: 2004 KAWASAKI KX250

Our Price: $29.99$39.99

MSRP: $49.99 - You save up to $20.00 (40% off)

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Additional Videos

Motorcycle and ATV Gearing Guide

Primary Drive Rear Aluminum Sprockets

How to - Renthal Chain and Sprocket Install Instructions

How to - Chain And Sprocket Replacement

RM YouTube Channel
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Details

  • Primary Drive rear aluminum sprockets are made from a high-strength aircraft grade aluminum alloy.
  • Anodized and heat treated for extended wear.
  • Self cleaning grooves prevent mud build up to prolong sprocket and chain life.
  • CNC machined to match original equipment exactly for a perfect fit.
  • 7075 T6 Anodized Aluminum.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Primary Drive Rear Aluminum Sprocket Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
4.6 / 5.0
319 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
243
48
19
5
4
Value
4.8 / 5
Durability
4.7 / 5
Fitment
4.9 / 5
Performance
4.9 / 5
Recommend it?
Yes (162)
No (2)
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Amazing quality and worth every penny! Highly recommend for anyone and everyone!
Chain is amazing! Was recommended by a buddy and I was skeptical at first, until I received it and through it on my bike. I'm a M.M.I. graduate and motorcycle tech and I've always been a Renthal or D.I.D guy and I can honestly say now that as long as Primary Drive is around it's all that I will run on ming and my family's bikes. It's just as good if not better quality than ist competitors and nearly half the price. Well worth the money and I highly recommend!
February 6, 2020
McCleary, WA, US
Age: 25-44
Purchased
3 weeks ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great
How good or bad can a sprocket really be? It’s a good sprocket.
February 5, 2020
Birmingham , AL, US
Age: 25-44
Purchased
9 months ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'7 - 5'9
Recommend it?
No
Honda trx450r
Do not buy for a Honda trx450r unless you already have your axle out

-m-2014 HONDA TRX 450ER--
January 25, 2020
Vienna, WV, US
Age: 25-44
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
No
Great color
Great quality and very durable. I would recommend it.
January 7, 2020
Bountiful, UT, US
Purchased
9 months ago
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Perfect
Great product!! Looks amazing

-m-2013 KTM 450 SX-F Factory Edition--
User submitted image
Added Dec 17, 2019
December 17, 2019
San Luis Potosí , San Luis Potosí , MX
Age: 15-24
Purchased
2 months ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Recommended
Great look and quality. Price makes it affordable.
December 17, 2019
Apple Valley , CA, US
Age: 45-64
Purchased
2 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Excellent Product
Very good product for the price

-m-2017 KTM 250 SX-F--
November 29, 2019
POLK CITY, FL, US
Age: 45-64
Purchased
2 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Worth the money! Awesome sprocket
Great product. Was a bit hesitant but figured it would be worth a shot since any aluminum sprocket will wear out eventually. Worth the money tho! So far it’s held up fantastic and will be buying more!
November 25, 2019
Camas, WA, US
Age: 25-44
Purchased
9 months ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
6'4 - 6'6
Value
4 / 5
Durability
3 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Nice Sprocket
Much cheaper option than my dealer wanted. Durability is so so and seems to be wearing pretty fast. Having said that, the riding here is in the worst conditions so rapid wear is expected. Might have to try a steel/alum two piece next time. Fit was perfect.
November 24, 2019
Maple Ridge, BC, CA
Purchased
6 months ago
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
great sprockets
look good, durable and the higher priced aluminum but last just at long. great value used on many different bikes with zero issues
November 21, 2019
Red deer , AB, CA
Age: 25-44
Purchased
over 2 years ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 22 questions Browse 22 questions and 41 answers
what size of chain does it take?
Tim D on Apr 23, 2017
BEST ANSWER: The size chain will depend on your machine and sprocket sizes. If you could tell me the make, model, and year of your machine along with your front and rear sprocket sizes I can tell you what size chain you will need.
My stock gearing is 13/50 if I got a 49 tooth sprocket would it help my pull more out of my gears ? And second would I have to do anything to my chain or could I keep it the same just maybe have it adjusted tighter on the blocks?
Dyllon B on Dec 30, 2017
BEST ANSWER: A smaller rear/larger front sprocket will give you more top end speed, if your engine has the power for it. Conversely, using a larger rear/smaller front sprocket would give you more acceleration at the expense of top end.
As for your chain, for a single tooth on the rear, you can probably get it tight enough with the adjusters. However, if you have significant time on it, you should replace it along with your new rear sprocket and a new front sprocket. A used chain will have stretched to the point the rollers will not fit the new sprocket teeth properly. You will wear out your new sprocket very quickly.
2005 400ex, Doesnt have enough inside diameter cut out to mount on the back side like the stock sprocket..if i mount to the front side the sprocket alignment is way off. Looks like I am out 40$ unless someone has a suggestion?
robert d on May 8, 2018
BEST ANSWER: Please call us at 1-800-336-5437 or email us at [email protected] with pictures of the problems you are having. Once we have this information we will be able to further assist you.
Why is Red not available for the Betas???
Kelly C on May 28, 2017
BEST ANSWER: Unfortunately, this color is not available for us to get for your machine. However, I will forward along your comment for consideration.
This says it fits a wr250r but the new sprocket has recessed bolt holes the stock sprocket has flat bolts. Do i need new bolts?
Scott F on Apr 16, 2019
BEST ANSWER: It should have recessed bolt holes since they center the bot/sprocket I’m not sure what setup is currently on your wr but get a set of tusk or motion pro sprocket bolts and you will be good
When I increase the size of the rear sprocket do I have to order a longer chain or will the chain that’s recommended for my bike still work?
William j on Jan 27, 2020
BEST ANSWER: Depends how many teeth your going up. Every chain that iv gotten has been about 2 links to long iv always taken 2 links out . It’s always easier and cheaper to chain the front sprocket
I have a 2013 KTM 350exc. Have 13/48 on now with stock chain. Chain good. Want 50 on rear for more pull. Will stock size work? OEM is 14/45. Thanks.
Donovan M on Jul 10, 2018
BEST ANSWER: I would recommend a new chain with more links. For this gearing, it is recommended to add 4 links to the stock size. What I would do personally is buy a chain longer that is 4+ links longer than stock and then cut it to the length you would like.
If I'm going from a stock14" rear wheel to a 16" rear wheel do I need to change my rear sprocket to accommodate the larger wheel size?
A shopper on Apr 20, 2018
BEST ANSWER: depends on if the type of bike and if the bike has the horsepower to handle it. If it doesn't have the horsepower then I recommend going up in teeth to accommodate the larger wheel. the larger sprocket will help compensate for the larger wheel.
Is the #102-228-0161 sprocket a 420 chain size or 428 ?
Michael W on Feb 8, 2018
BEST ANSWER: Hello,
The sprocket is a 520 chain size.
I have a 2019 ktm excf 450 six days. It has a 45 tooth rear sprocket. If I change to 48 will I need a new chain? What about 50?
jacob d on Jul 31, 2019
BEST ANSWER: Better to go one tooth smaller on the counter shaft sprocket. Gives about the same gear reduction and is easy to change. No chain length worries either.
I have a 09 yfz 450r what would it do if I went with a 36 tooth in the rear and stock font?
Tyler H on Mar 31, 2019
BEST ANSWER: Not sure what you are trying to do here ?Stock rear is a 49 ! Thirteen teeth smaller is huge , put your YZ in third or fourth gear and start from a dead stop , that is how first gear would feel with a 36 rear . Even with your 450 power you could not pull top gear !
Anybody else have trouble with this sprocket fitting a Cobra CX50-Sr? I purchased the sprocket under OEM and the bolt holes are metric and I had to tap them to fit..
A shopper on Sep 28, 2017
BEST ANSWER: I have not used my Primary Drive sprockets on a Cobra, I have had a few sets for my KTMs over the years & my friends too ,and we had absolutely no fitment issues on front or rear sprockets. I am also using stock KTM bolts also.Make sure (if the bike was bought used) that the bolts are OEM certified & tapered correctly & you have no oblong holes on wheel hub from loose or worn/incorrect fasteners.
Anyone know what the size of center hole diameter? 125mm?? Ethics nowadays are poor. Except mine seems like...
Lee C on Dec 17, 2019
BEST ANSWER: I would be happy to look into this for you. What is the year, make and model for your machine?
Will this work on a 2008 ktm 250xcf-w?
Michael S on Sep 29, 2018
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2019 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
I'm changing my rear sprocket to a 49 from a 43 and front from 13 to 14 on a wr250R. Ca I use my stock chain?
Alex S on May 30, 2018
BEST ANSWER: No because you will need 6 more links longer than stock.
Will 51 tooth become available in black again soon?
marc h on May 14, 2018
BEST ANSWER: I would be happy to check. What is the make, model, and year this would go on?
Will it fit on a 2017 ssr 189?
A shopper on Dec 5, 2017
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2018 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Where are these sprockets made?
MICHAEL O on Oct 25, 2017
BEST ANSWER: they are made in Taiwan.
What is the stock tooth count for the rear sprocket on a 2008 KTM 85sx?
Danny H on Oct 16, 2017
BEST ANSWER: The stock rear sprocket size is a 46 tooth.
How do I get this in blue for my Crf250R? Will the Yamaha sprocket fit on 2013?
Jason B on Sep 8, 2017
BEST ANSWER: I am not sure that the yamaha sprocket will work. we only sell the most popular colors for each bike.
Will this work on a 1997 YZ 125?
Stevan L on May 23, 2017
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2017 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Why is this only available in 50 or less for a YZ250? I want to go up a tooth. Ridiculous.
Bob W on Dec 30, 2017
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