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2012 Yamaha YZ450F

Renthal Front Sprocket

Renthal Front Sprocket - Main
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Retail: $29.99
$22.99
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OEM Stock Sizes for a 2012 Yamaha YZ450F
For reference only. Please verify with owners manual.
Chain Type: 520 Chain Length: 114
Front Sprocket: 13 Rear Sprocket: 48

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FITS: 2012 Yamaha YZ450F change
 
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Product Description

When looking to replace your front sprocket, Renthal front sprockets are an easy choice because of their strength and inexpensive price tag.

  • Also known as chainwheels, Renthal front sprockets are precision manufactured to withstand the rigors of supercross, motocross, and enduro racing.
  • Renthal Front Sprockets are made out of 655M13 nickel-chrome-molybdenum alloy steel. What does that mean to you? Ultimate strength and hardness.
  • Self-cleaning mud grooves prevent the build up of dirt.
  • Precision machining to extremely tight tolerances ensures that Renthal front sprockets are always within spec.
  • Image is for reference only, actual product may vary.

Profile your ride with our ride selector to see what teeth options we have available for your motorcycle or ATV.

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(64)
4.8 out of 5 stars
5 star   54
4 star   6
3 star   3
2 star   1
1 star 0
Write a Review
“ if you wont more get up and go. ”
gold3n0n3
“ Renthal has always delivered high quality drive line parts and this front sprocket is no different. ”
Location: Land of 10,000 Lakes
“ I ride in the sand so I load my drivetrain up higher and longer than most. ”
TheWindmill Location: Portland, OR
1-10 of 64
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Verified Purchaser
Great low range.. 12t
if you wont more get up and go... go with 12t (13t stock for 350 raptor) if your wonting more in the top end go with the 15t
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Verified Purchaser
Location: Land of 10,000 Lakes
Top notch goods from Renthal
Renthal has always delivered high quality drive line parts and this front sprocket is no different. Slips on like OE and lasts.
Overall
Durability
Ease of Installation
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Verified Purchaser
Location: nz
Renthal Front Sprocket
Fit and finish is good but whats really stood out so far is how hard wearing these have turned out to be. 40hrs or hard sand riding and it could probably go another 5/10. Others we've used tend to last less than half this. An good combo to get even more life would be to match it up with the rental o-ring chain and a steel rear sprocket, in our opinion.
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Verified Purchaser
Renthal is awesome!
Best sprocket I've ever used! Holds up great and super easy to install!
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Verified Purchaser
Location: Lancaster, ca
Its a sprocket
Would be nice if it had holes drilled in it so it was lighter, but you get to spend more for that. its steel should last a while
Overall
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Verified Purchaser
Location: Portland, OR
High quality front sprocket the way to go
I ride in the sand so I load my drivetrain up higher and longer than most. The front sprocket takes most of the beating. I have found the renthal to be durable. The longest I've run one is 59 motor hours but 40 is a comfortable change (for dunes). I feel the material quality makes Renthal worth the extra money.
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Verified Purchaser
Location: Pittsburgh Pa
Got teeth
great product. if you want the best buy the best. perfect everytime
Overall
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Verified Purchaser
Location: Pittsburgh, PA
Perfect
Sprocket isn't showing any wear so far! Very pleased.
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Top 1000 Contributor Verified Purchaser
Another solid product from renthal. Wouldn't buy anything else.
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Ease of Installation
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Location: Dallas, Tx
Good sprocket
A great product
1-10 of 64
Total Questions (9)
Questions with answers:
  9
Questions without answers:
0
Have a question?
“ Don't you take a tooth off the front sprocket or add teeth to the back sprocket to gain low end and i... ”
Hendu Location: Spokane, Washington
“ Srocket size?... ”
Tre9
“ Would 14t or 16t give my 4 wheeler the most torque?... ”
num817
1-9 of 9
Hendu Over 3 years ago Location: Spokane, Washington
Don't you take a tooth off the front sprocket or add teeth to the back sprocket to gain low end and in turn loose top end?
Top 500 Contributor
Over 3 years ago Location: Austin, TX
YES. Adding a tooth to the rear sprocket on a bike will provide more "low end" and reduce "top end". The reverse is also true when removing teeth from the rear sprocket. The front sprocket is the exact opposite of the rear but each tooth has more of an impact. For example, dropping 1 tooth on the front sprocket is roughly the equivalent of ADDING 2-21/2 to the rear sprocket.
Answer this Question
Zacky Over 3 years ago
I want more low end power.?
What should i put on my 2004 CRF 250R to give it a wider gear ratio and more low end power?
Over 3 years ago
For more torque you make the front smaller and the back bigger but kills your top end speed. For more top end speed you make the front bigger and make the back smaller and kills you torque. I'm not sure the ratios would be but for my YZ125 i put a 52 tooth on the back and made a big difference with getting up hills easier.
Answer this Question
Tre9 Over 3 years ago
Srocket size?
ok so i have a 2003 cr250r and i have a 13t sprocket on the front and a 46t sprocket on the back. so i bought a 49t for the back and now my bike has way to much torque what size can i put on the front to even the gearing out?...or make it the same as the 13t to 46t...thanks
MotoSport Staff Expert
Over 3 years ago Location: USA
If you add one tooth to the front sprocket it will be the equivalent to loosing 2 1/2 teeth from the rear. so if you got a 14t front, it would make the rear sprocket comparable to a 46 - 46 1/2T.
Top 500 Contributor
Over 3 years ago Location: Austin, TX
Adding 1 tooth to the front sprocket (14t) would be like dropping about 2-21/2 teeth from the rear. A 14t / 49t would be similar to a 13t front and 46-1/2t rear setup.
Answer this Question
num817 Over 3 years ago
Would 14t or 16t give my 4 wheeler the most torque?
MotoSport Staff
Over 3 years ago Location: P+RTLAND
if you want more torque, your going to want to go down teeth in the front from where you are at right now. So if your running a 15, a 14t is going to give you more bottom end.
7 days 4 hours ago
the 14t would give you more torque. the 16t would give you about 4-6 mph on the top end depending on your stock sprocket
Answer this Question
bigscott Over 3 years ago
What is the stock number of teeth on the front sprocket?
Expert MotoSport Staff
Over 3 years ago Location: Portland, OR
that depends on the kind of bike.
Answer this Question
SuzukiKid239 Over 4 years ago
I know there real good sprockets?
Im going to get both I have a Suzuki rm85 and im going to start racing hare scrambles how many teeth would you recomend on the front and back because i want more bottem end power
Top 250 Contributor
Over 3 years ago Location: honolulu, HI
for more bottom end power you want less teeth on the front or more on the back. it all depends on your current gearing. just remember that 1 tooth in the front is equal to about 2-3 teeth on the back.
Answer this Question
Sporttrax Over 4 years ago Location: California
Trailriding?
I have a 05 trx 400ex and I want to lower my gear ratio for trail riding right now I have the stock 14t front sprocket and a 39t rear sprocket what would you suggest as the quickest and best way to achieve this without losing sand ability? Thanks
MotoSport Staff
Over 4 years ago Location: Por+land
Try going down to a 13t on the front and see how that works for you. It's hard to suggest what gearing you should run since everyone has their own preference. I would drop down on the front sprocket though thats going to be easiest and cheapest way to do it.
Answer this Question
eric850 Over 4 years ago
How many teeth would i want for low end power?
how many teeth would i want for low end power
MotoSport Staff Expert
Over 4 years ago Location: PDX
You would want to add teeth on the rear.
Answer this Question
speedracer Over 4 years ago Location: bonneylake
This is a 13 tooth sprocket right?
MotoSport Staff
Over 4 years ago Location: Portland, OR
When you profile your bike it will give you the option to select how many teeth you want.
Answer this Question
1-9 of 9

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