primary drive sprockets

I see in rocky mountain they have a set of primary drive 14/47 sprockets for $22 (steel ones) any one have any problems with this brand? I know after doing the jet kit, the float bowl screw problem, that some of the bolts and screws on our bikes can be a pain. Any known issues with changing sprockets?

I see in rocky mountain they have a set of primary drive 14/47 sprockets for $22 (steel ones) any one have any problems with this brand? I know after doing the jet kit, the float bowl screw problem, that some of the bolts and screws on our bikes can be a pain. Any known issues with changing sprockets?

I used the same set - 14/47 combo from Rocky Mountain for like $22 - been on about a year and no problems at all :cry:

I've got 1000 miles of hard 100% off-road riding on mine. Still look good. :cry:

Same here, Primary Drive sprokets are holding up great, and the fit is perfect.

Mike -

No problems with my primary drive sprockets (14/47). :cry:

I have about 1000 off road miles on mine.

I didn't have any problems changing sprockets.

Some people have had problems with the rear sprocket and stripping the fasteners. The trick I learn several years ago is to put a box end wrench on the nut on the back side and give it a smack with a dead blow hammer. It will loosen the nun up enough to be able to use the allen wrench on the bolt. If you try to do anything with the allen bolt you will have a very good chance of stripping the head out.

You get both for $22 ?

Wow...thats a great deal...

Any advice on gearing for someone who finds himself stuck in first gear while riding trails ? Im geared at 14/47 (stock "e" gearing) and want to quit revving the engine so hard in 1st...any suggestions ?

Shift. :cry: :cry: sorry, couldn't resist.

BTW, I have the PD sprockets 14/47 too and using the 12MM box end, made it a breeze. I initially tried using a socket, etc. with the allen and it was bad.

have done well with their sprockets and chains :cry:

Shift. :cry: :cry: sorry, couldn't resist.

BTW, I have the PD sprockets 14/47 too and using the 12MM box end, made it a breeze. I initially tried using a socket, etc. with the allen and it was bad.

:cry: good one....I left myself open to that one...

seriously; Im sure this belongs in a different thread but had to ask...2nd gear seems to bog when I shift, but then 1st gear seems to rev too hard.... Should I drop 1 tooth in front and mybe add 2 teeth in the rear ? 13/49 ? anyone ?

Dropping one in the front and adding two in the back is not much of a change. You may not even notice this - IMO

Dropping one in the front and adding two in the back is not much of a change. You may not even notice this - IMO

really ? what do you think would be a noticable change for someone in my predicament ?

:cry:

this should give you some idea.

you can look at the different sprockets and see what effect it has on your final ground speed.

myself i like 14 49 combo

but others have close ratios 13 47 is a little slower but the front sprocket is cheeper..

good luck..

:cry:

front spkt

rear spkt

ratio

stock ratio

speed change

14 47 3.357 3.357 0.0%

14 45 3.214 3.357 4.3%

14 46 3.286 3.357 2.1%

14 47 3.357 3.357 0.0%

14 48 3.429 3.357 -2.1%

14 49 3.500 3.357 -4.3%

14 50 3.571 3.357 -6.4%

14 51 3.643 3.357 -8.5%

14 52 3.714 3.357 -10.6%

14 53 3.786 3.357 -12.8%

14 54 3.857 3.357 -14.9%

14 55 3.929 3.357 -17.0%

13 47 3.615 3.357 -7.7%

13 45 3.462 3.357 -3.1%

13 46 3.538 3.357 -5.4%

13 47 3.615 3.357 -7.7%

13 48 3.692 3.357 -10.0%

13 49 3.769 3.357 -12.3%

13 50 3.846 3.357 -14.6%

13 51 3.923 3.357 -16.9%

13 52 4.000 3.357 -19.1%

13 53 4.077 3.357 -21.4%

13 54 4.154 3.357 -23.7%

13 55 4.231 3.357 -26.0%

12 47 3.917 3.357 -16.7%

12 45 3.750 3.357 -11.7%

12 46 3.833 3.357 -14.2%

12 47 3.917 3.357 -16.7%

12 48 4.000 3.357 -19.1%

12 49 4.083 3.357 -21.6%

12 50 4.167 3.357 -24.1%

12 51 4.250 3.357 -26.6%

12 52 4.333 3.357 -29.1%

12 53 4.417 3.357 -31.6%

12 54 4.500 3.357 -34.0%

12 55 4.583 3.357 -36.5%

11 47 4.273 3.357 -27.3%

11 45 4.091 3.357 -21.9%

11 46 4.182 3.357 -24.6%

11 47 4.273 3.357 -27.3%

11 48 4.364 3.357 -30.0%

11 49 4.455 3.357 -32.7%

11 50 4.545 3.357 -35.4%

11 51 4.636 3.357 -38.1%

11 52 4.727 3.357 -40.8%

11 53 4.818 3.357 -43.5%

11 54 4.909 3.357 -46.2%

11 55 5.000 3.357 -48.9%

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

  • Similar Content

    • By Caycee Justus
      I had a gsx-s750 and got rid of it and picked up a 2015 drz400sm this week. It's used and the last guy put knobbies on it. I'm switching back to Michelin power 2ct. stock tire size is 140/70. The current tires are 150/70. I was looking at running 160/60. Anyone know if this would be a problem? I'm just getting into the supermoto life so any other general suggestions would be great. Thanks! 
    • By Supermotofool
      I totaled my DRZ400S last year, did a good bit of work to it and finally got it running.. I want to turn this into my full stunt bike.
      I have read before about people buying a 2nd stock rear caliper & bracket - then cutting and welding it to the existing bracket, then just running a handbrake master, and a hose to the 2nd caliper. 
      Has anyone done this before? Defiantly seems to be the cheapest route to go (staying away from the junction valve / 1 master cyl. & 1 caliper setup.)
      Looking for opinions, pros/cons, and info if anyone has gone this route.. If it seems too much of a risk or hassle I guess im gonna have to spend the $500/$600 to get a legitimate setup 
      any and all comments are appreciated - except trolls.. you better be funny as hell if your gonna troll.
      Thank you all!
       - Brad
    • By 148am
      Make an offer, you pay USPS shipping. I want these out of my garage. Used, no damage.
      CST Suspension fork springs to fit 49mm stanchions in '03+ Suzuki DRZ400S, some KTM models, maybe others.
      503 mm length, 33.0 mm ID, 43.3 mm OD, 0.43 spring rate.