Renthal Front Sprocket

Renthal Front Sprocket
Renthal Front Sprocket

$23.39 - $46.99
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Description See Also: 94 Reviews 19 Questions Fitment
Item #REN001J

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94 Reviews
4.8 out of 5 stars
5 Star   86 4 Star   9 3 Star   3 2 Star   1 1 Star   1
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All Reviews
Ktmripper
Florida
Durability 5/5 Ease of Installation 3/5 Performance 5/5 Style 4/5
Easy to install... If you have the proper tool

This front sprocket is a great product, very durable if you also renew your chain. Replacing your front sprocket with a bad chain will rapidly increase wear and your sprocket will not last nearly as long as if you replace your chain, this also goes hand in hand with the rear. That is why it is recommend to replace all at once. Also, I highly recommend that you buy the tool for it if the bike is a Kawasaki mini or a ktm mini. These bikes all have the clip, which if you do not have the tool to pull it off can be the biggest pain to do. Overall it is a great long lasting sprocket, but just make sure you have the tool.

Here is a picture with the old vs new
Hollywood Verified Purchaser
Orlando, FL, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Always a great purchase, RENTHAL.

Great products !

stallion Top 500 Contributor Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Great product from renthal

light and durable.

1PROUDPAPA Verified Purchaser
Canton, OH, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Great product !!!

OEM part was on backorder. Which ended up being a good thing. I had originally tried to order a Renthal, but couldn't find it on your website. Made a phone call and your staff found it for me. You guys are great !!!

guesswho MotoSport Staff
Durability 5/5 Ease of Installation 5/5 Performance 4/5 Style 4/5
Renthal sprocket

great replacement for oem sprocket, can't go wrong with Renthal products

Chance Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5

Great long lasting product!!!

TheMerc Verified Purchaser
Camp Lejeune, NC 28547, USA
Ease of Installation 5/5 Performance 4/5 Style 4/5
Easy replacement

My front sprocket got worn down like any old bike, so I simply bought this one based on reviews. And it's good!!

mhswx2 Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Rental Front Sprocket

This sprocket works great and it was an easy install

drock222 MotoSport Staff Expert
Oregon, USA
Durability 4/5 Ease of Installation 4/5 Performance 4/5 Style 4/5
Quality

Renthal makes proven durable products. Have not had a Renthal sprocket fail on me. Like any front sprocket, they are steel and offered in an array of sizes to fit your gearing needs.

Kangaroo53
Ligonier, PA 15658, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Only trust Rental!!

Only trust Renthal!! Don't put that cheap stuff on your bike, you'll be replacing cases if you do!

Marcus Verified Purchaser
Brasil
Durability 4/5 Ease of Installation 4/5 Performance 4/5 Style 4/5
Very Good Part

Traditional efficiency

LamBurks Verified Purchaser
New Iberia La
Durability 4/5 Ease of Installation 4/5 Performance 4/5 Style 4/5
Renthal 14 tooth front sprocket

It was a great replacement for the factory 13 tooth that had 3 teeth broken.

ToxicButch Verified Purchaser
Shreveport, LA, USA
Style 5/5
Sprocket

awesome tech help, price, delivery and service. I have not yet installed but Motosport customer service is always great.

Jmarkel475 Top 500 Contributor Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5

Best sprockets out.

mcarlo Verified Purchaser
mcarlo
Durability 5/5 Ease of Installation 4/5 Performance 5/5 Style 4/5
Renthal Front Sprocket

Very durable, good quality sprocket.

Clark58mx Verified Purchaser
New Wilmington, PA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Renthal Front Sprocket

Durable,holds up well on my 2 and 4 strokes. Great buy.

chestnut250 Verified Purchaser
Phelan
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Change to 14T front sprocket on 2012 CRF450R

Since I'm converting my 450R to a more desert/trail friendly machine one of the first changes I made was a gearing change. Going up 1 tooth on the front as apposed to several teeth in the rear made sense since the bikes stock gearing is setup for MX, which is way too close for trails or desert.

The one tooth change in the front is fairly substantial. It is similar to making a 4 tooth change to the rear. The bike still pulls all 1st-5th gears without a problem. Top speed is higher which helps for valley crossing and 1st gear remains usable for extremely steep technical hill climbs. On my last trail ride I handled most hills in 2nd without having to downshift or bogging down in 2nd. 1st gear would be suited for National Hare and Hound 2nd loop uphills.

Overall, it is a 5 star sprocket. It took about 5 minutes to install (I'm very mechanically inclined so may take others longer). Went on easy, perfect fitment, and didn't have to remove the chain. It is a good looking part, well machined. Packaging is very nice. Very durable and performs excellent. I definitely recommend this product.

Gman Verified Purchaser
Pensacola
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Great Sprocket

Very durable and easy install

Jwmell Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Solid Sprocket

Got to my house quickly and went on the bike easily. Renthal makes great sprockets.

MrGoodberry
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Great for Price!

I got this several months ago in order to gear my 2002 YZ85 down a few teeth, and it has been great. It was also very easy to install (I've had it on and off a few times now).

See 20 More Reviews
19 Questions
Answered:   19
Not Yet:   0
Drobneck
Q: Does it come with the new guard?
1 month 11 days ago
Does the part come with the that " C" guard.
MotoSportExpert
MotoSport Staff Expert
1 month 11 days ago
A: No. The Renthal Front Sprocket does not come with the guard. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Rodney
Location: Idaho, USA
Q: Which way does the Renthal 520 off road sprocket go on 2008 Suzuki rmz 250?
2 months 27 days ago
There are numbers on one side. I have the numbers and lettering facing engine. I tried to use old sprocket as a guide but that sprocket is the same on both sides. Any help is appreciated. Renthal 520 Off-Road Front Countershaft Sprocket Color- Steel, Size- 13
MotoSportExpert
Expert MotoSport Staff
2 months 21 days ago
A: The sprocket should be the same on both sides meaning you could run it either way.

http://www.renthal.com/shop/about-us/contact-us

Renthal
Telephone (Toll Free): (877) 736-8425
Kxrider
Q: Which way is the sprocket supposed to face on a kx85 the words out or in?
1 year 1 month ago
MotoSportExpert
MotoSport Staff Expert
1 year 1 month ago
A: Generally the writing/numbers will face out. If the sprocket has different length flanges on each side you want to make sure it goes on the same as the old sprocket or as specified in your service manual.
isiah
Q: What kind of attachment holds the front sprocket on for a 2003 cr85? and does it come with this product?
1 year 2 months ago
MotoSportExpert
Expert MotoSport Staff
1 year 2 months ago
A: On the 2003 Honda CR85 the front sprocket is held to the counter shaft with a fixing plate and two bolts. The Renthal Front Sprocket does Not come with the hardware, however it can be found in our OEM section here:
http://www.motosport.com/dirtbike/oem-parts/honda/2003/cr85/transmission
Chuck
Location: Millville, NJ, USA
Q: How to reduce torque on a 2011 KTM 50sx?
1 year 4 months ago
Currently running a 10 tooth front sprocket and 42 tooth rear sprocket. Which one should I change to lower the torque on the bike. Daughter gets jerked when she gets on the gas.
MotoSportExpert
MotoSport Staff Expert
1 year 4 months ago
A: For less bottom end power and more top end you would want to go down on the rear sprocket and/or up in the front. Remember 1 tooth in the front is equal to about 3 in the rear. Feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
chestnut250
1 year 3 months ago Location: Phelan
A: To reduce torque (spread out the gearing) you would want to increase the size of the counter-sprocket (front sprocket connected to engine, sometimes called the drive sprocket) or decrease the rear sprocket (Large sprocket attached to wheel hub, sometimes called the driven sprocket). Keep in mind the bike will accelerate slightly slower but will also have a higher top speed. Another thing to consider is you may want to stick to changes on the sprocket, not counter-sprocket. Counter-sprocket changes are BIG changes and you can get much more gradual changes with the driven sprocket.

Something else you may want to check before changing gearing is the chain tension. You say the bike jerks when she gets on the gas, that is usually a sign of a loose or stretched chain. Be sure to adjust this to the manufacturer recommendation with is usually about 1" to 1 1/4" of free play.
Trailrider
Location: Colorado
Q: Would changing the sprocket size on a 07 ktm105sx help with trail riding?
1 year 4 months ago
We trail ride the most and I know a trail bike would be better overall however we like the weight and size of the 105. Would changing the sprocket size set the bike up better for trail riding? Any recommendations on a good ratio or size for front and rear. I believe the stock size is 14 in the front and 49 in the back.
MotoSportExpert
Expert MotoSport Staff
1 year 4 months ago
A: Yes you can definitely gear your 2007 KTM105SX to work better on the trails. Going up on the rear and/or down on the front will give you more bottom end. I would recommend searching the forums to find out what gearing is working best for trails on the 105SX.
atv449
Location: Pittsburgh, PA, USA
Q: Best setup for mx front and rear sprocket?
1 year 10 months ago
running stock right now
MotoSportExpert
Top 1 Contributor
1 year 10 months ago
A: Motosport.com only list the stock gearing for your Yamaha YFZ450.

As a general rule of thumb to get more acceleration (less top speed), you will want to either drop teeth in the front or add to the rear sprocket.

To increase top speed, you do the opposite.
Ryguy
Q: If I have a 13 on my bike and a 53 on the back if I do 12 in front and 52 on back will I have more touque and more top end at the same time?
2 years 1 month ago
MotoSportGrantK
Top 1 Contributor MotoSport Staff Expert
2 years 1 month ago
A: You can either gain acceleration or top speed, not both. 13-53 gives you a gear ratio of 4.08, going with 12-52 will give you a gear ratio of 4.33 giving you more slightly more acceleration and less top speed. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
chestnut250
1 year 3 months ago Location: Phelan
A: No.

It is impossible to get both more torque AND more top end with sprocket changes. The only way to accomplish this is to change the bikes transmission gearing (1st gear ratio, 2nd gear ratio, and so on) and even with this you could only accomplish more torque on the bottom and more top end in the higher gears.

It is a give and take. With sprockets if you want more torque you sacrifice top end. If you want more top end you sacrifice torque.

I hope this helps.
KeeKee
Location: Canada
Q: Need a front sprocket to fit 1995 Polaris Xplorer 400 front?
2 years 7 months ago
this takes a 520 chain
MotoSportRyanT
MotoSport Staff Expert
2 years 7 months ago Location: Portland, OR, USA
A: Unfortunately, I do not show any aftermarket sprocket options that would fit your 1995 Polaris Xplorer 400. I would recommend ordering the direct OEM replacement sprocket from Polaris for that. The OEM diagrams with that sprocket can be found here: http://www.motosport.com/utility/oem-parts/POLARIS/1995/XPLORER/GEARCASE-ASSEMBLY-XPLORER-4X4-W959140
bobthebuilder
Q: Were can I get a sprocket that will fit my 91 trx350? or will I have to have one made. If so what is the specs?
2 years 10 months ago
Putting my fourwheeler engine on a gocart
MotoSportExpert
MotoSport Staff
2 years 10 months ago Location: Portland, OR, USA
A: The 2001 TRX350 is shaft driven model, sprockets are not available for this model.
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