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Primary Drive Front Sprocket Upgrade

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Primary Drive Front Sprocket Upgrade
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Primary Drive Front Sprocket Upgrade

Our Price: $12.99$14.98

MSRP: $15.99 - $18.99 - You save up to $4.01 (21% off)

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Details

    Primary Drive Upgraded Front Sprockets are made to O.E.M. specifications and designs. 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 upgraded front sprocket for motorcycles and ATV's.
  • Manufactured to O.E.M. specs and designs using high-grade hardened steel.
  • Precision machined for a perfect fit.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Primary Drive Front Sprocket Upgrade Reviews

Each review submitted enters you into a
$100 gift card monthly drawing and a
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4.9 / 5.0
24 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
23
0
1
0
0
Value
4.9 / 5
Durability
4.9 / 5
Fitment
4.8 / 5
Performance
4.9 / 5
Recommend it?
Yes (23)
No (1)
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Nice!
Excellent sprocket upgrade! Thanks Rocky Mountain!

-m-2013 HONDA XR650L--
December 3, 2019
LENOIR, NC, US
Age: 45-64
Purchased
2 weeks ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
5 / 5
Fitment
4 / 5
Performance
5 / 5
Recommend it?
Yes
Definitely worth getting if you take your bike on roads that require 60-80 mph cruising
Very nice quality, I ordered the 16 tooth sprocket. It allowed the chain to slightly rub the cover but it doesn’t seem like a problem it just burnished some metal from the cover. And i considered this as a possibility before ordering. The extra tooth provides a way better cruising rpm
November 1, 2019
Ozark, AL, US
Age: 15-24
Purchased
1 month ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Durability
5 / 5
Fitment
1 / 5
Performance
3 / 5
Recommend it?
No
XR650L causes chain misalignment
I bought the “upgrade” front sprocket for my XR650L for the advertised reason of more spline engagement. While this sprocket does have more spline engagement it also caused other issues. Rather than adding thickness on the engine side of the sprocket, there is added material on the bolt side. This causes a sprocket misalignment when installed. I noticed it right away but chose to run it anyway. The only real negative result after a 800mi ride of Michigan’s MCCCT is my brand new oem chainslider is heavily worn off to one side and will need replacement much sooner than normal. This is due to the front sprocket forcing the chain off to one side and nearly off the edge of the slider while riding. I suspect this sprocket is nothing more than a 650r spec sprocket rebranded as an upgrade.

-m-2002 HONDA XR650L--
October 16, 2019
Stockbridge , MI, US
Age: 25-44
Purchased
11 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Value
4 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Buy these upgrade sprockets now or pay with your life later.
If I would have had these upgrade sprockets back in 2005 I would never have had to change my countershaft. The stock sprockets that came with this bike are nothing but deadly communist stuff. But now were saved buy Rocky Mountain upgrade sprockets thank you Americans. It's the designer that makes the difference not the country.
-m-2005 HONDA XR650L--
September 25, 2019
grand terrace, CA, US
Age: 45-64
Purchased
3 months ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'7 - 5'9
Value
4 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Fits good and seems like high quality part
Fit is really snug making it feel like a really tight tolerance part. Reduced a bit of the chain rattle going down the road and feels much more secure than the standard sprocket. I put the 14 tooth on mine and I can cruise down the road at 55 to 60 in about the middle of 5th gear.

-m-2007 HONDA XR650L--
September 25, 2019
Athens , GA, US
Age: 25-44
Purchased
2 months ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
2019 XR 650 L UPGRADE
This really should be OEM. I can't rate the durability being only two week's in, but for the price compared to replacing a countershaft (due to a thinner -longer lasting sprocket) is a NO-Brainer for me. PS-I also replaced the rear sprocket with a 48 tooth Primary Drive steel sprocket and I broke the OEM chain and simply installed a Primary Drive master link with clip. Rocky Mountain Rocks!

-m-2019 HONDA XR650L--
August 21, 2019
Nanty Glo, PA, US
Age: 45-64
Purchased
4 months ago
Gender:
Male
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great product
Fit perfectly and has the extra wide lip on it solving a common issue on XR650L stock sprockets.

-m-1999 HONDA XR650L--
July 11, 2019
Silverdale, WA, US
Age: 15-24
Purchased
6 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great Idea
The extra width prevents shaft wear and stabilizes sprocket . Saves your counter-shaft in the long run. Best deal out there.
Thanks , Don McC

-m-2001 HONDA XR650L--
July 8, 2019
Edmonton, AB, CA
Age: 45-64
Purchased
10 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Value
5 / 5
Durability
4 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
quality
I put the 13 tooth on my XR650L to prevent spline wear the ones from Rocky Mountain are not the same as if you google primary drive for the XR the 15 tooth is on back order so I found one on another site and bought it turns out not to be the same part just beware of other sources.

The 13 tooth makes My L feel more like an R in the woods 45 mph is the top that feels odd on it but can do 55 mph but I feel bad for the engine holding that rev for an extended run. 2018 XR650L everything else stock still

-m-2018 HONDA XR650L--
July 5, 2019
somewhere , RI, US
Age: 25-44
Gender:
Male
Weight:
251 - 280 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Durability
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Perfect upgrade
Perfect upgrade for my 2006 Honda Xr650L

-m-2006 HONDA XR650L--
June 27, 2019
Goodrich , MI, US
Age: 45-64
Purchased
5 months ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'7 - 5'9
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 5 questions Browse 5 questions and 29 answers
Will this sprocket fit the Honda XR600R? Most parts of these motors are interchangable, does the XR600R have the same problem?
JASON S on Feb 27, 2019
BEST ANSWER: the 600R comes with a different sprocket than the L I have no idea why Honda uses and still uses these on the L this should fit both the R and the L from what I have read.
Can i use the 13 tooth PD front sprocket with my stock 45 tooth rear or will it cause premature wear on my chain guides On my 2016 XR650L ?
Thanks Paul
paul m on May 2, 2019
BEST ANSWER: I have been running it on my 2017 XR650L now for about 1000 miles and see no evidence of excessive or premature wear on the chain guides. I agree with Cole, the chain will wear a little premature. I feel it is completely worth it...as the gain in climbing power is noticeable and since I hardly ever drive at highway speeds above 65mph I don't mind the higher revs at the top. I am running 13 front with 46 rear.
What is the width of the Primary Drive Sprocket for the XR650L at its widest point? Thank You
TOM B on Sep 22, 2018
BEST ANSWER: Already on my xr650l but I can tell you it covers all the splines on the shaft, much better than the o.e. one. Already put on about 500 miles on it and no issues, and it is very good quality. I bought the 14 tooth for a little more low end grunt. Just need to adjust the chain out a little more. Easy install.
What is the difference between the 14 and 15 tooth? Which ones should i buy, and why? Thanks!
A shopper on Aug 10, 2018
BEST ANSWER: Get both they only cost $13 bucks ! But get "Primary Drive" sprockets it's the thickest front sprocket on the market don't get the fritz or whatever other ones out there just "Primary Drive" I've already been through it all, it will save you form a very expensive counter shaft replacement in your engine..

The closer two sprockets get to the same size the harder they are to turn at low speeds and up hills so the engine works harder (bogging) but you get more speed once you get going.

15 tooth is the stock sprocket for the XR650L, changing to a 14 tooth will give the bike a bit more torque and acceleration but slightly less top end speed, good for trail riding aka "Gearing Down." If you want to ride on the freeway more keep the 15 tooth sprocket size: in short:
15 tooth to a 14 "Gearing Down" gives quickness / torque. (trail riding) or a larger rear sprocket same thing.
14 tooth to a 15 "Gearing Up" gives top end speed. (freeway riding) or a smaller rear sprocket same thing,
The gear ratio of a stock 650L is 3.0 for every 3 rotations of the 15 tooth sprocket the rear 45 tooth sprocket or rear wheel makes one full rotation 3:1 ratio. { 15/45 = 3/9 =1/3 = 3.0 } or 3 X 15 = 45 how ever you chose to look at it.
Changing the rear sprocket on a stock 650L from a 45 tooth to a 48 tooth is about the same putting a 14 tooth on "Gearing Down"
Changing the rear sprocket on a 650L with a 14 tooth front sprocket and changing the rear from a 45 tooth to a 42 tooth is about the same putting a 15 tooth front back on "Gearing Up" (back to stock 3:0 ratio)
There are other variations of sprocket arrangements, some guys squeeze a bit more power out of their engines carbs, jets or 650NX to 650L 2nd and 5th gear transition mods ext. The 650 is a tank of a bike so the 15 tooth is a well rounded choice if you had to chose one but if you wanted to turn your bike into a work-horse and you add a bunch of camping gear weight and your going up into the high mountain trails rock and mud, you would want to put that 14 tooth on. When you get back to the highway the 15 tooth goes back in for your rid home because the front sprocket is far easer to change the rear one obviously. I hope this helps you out ride safely! This site has really good sprocket ratio chart.
Doesn't having a lip on both sides of the upgraded countershaft sprocket offset the sprocket to the inside a bit throwing the chain alignment out by the width of the lip?
Curtis K on Jun 28, 2018
BEST ANSWER: What machine is this for?
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