sprockets

  1. N

    Racing Sprockets and Chain Options

    I was wondering what sprockets and chain would be good for for racing.
  2. Formula390

    520 16T Fronts

    To add to the mix, I'm now also producing a Chromoly 4140 Hardened Rockwell 36C front sprocket for the stock 520 chain. These sprockets are hard clear through, not case hardened as most front sprockets are. This means it'll last a LOT longer. Going up to a 16T front is basically about the same...
    • Formula390
    • Thread
    • 16t 36c center chain chromoly configurations dropping formula390 front gear hard hardened lengths link machining means produced ratio ratios sprocket sprockets steel stock usa vertical
    • Replies: 3
    • Forum: Formula390
  3. Formula390

    415 Sprockets

    415 Front Sprockets are rolling off the machining center constantly now. Stock for the rear sprockets should be here later this week and will have an array of offerings for rear sprocket sizes. Sprocket fitment is perfect! These front sprockets are made from hardened Chromoly 4140, and have cold...
    • Formula390
    • Thread
    • $80 center chromoly compare constantly contact delivery directly existing front gear inventory machining options price queue ratio rear rolling sprocket sprockets stock threads week worksheet
    • Replies: 9
    • Forum: Formula390
  4. HardRacing

    BST CARBON FIBER WHEELS Extra 10% DISCOUNT For 72 Hrs Only!

    BST CARBON FIBER WHEELS EXTRA 10% DISCOUNT For 72 Hrs Only! We are running an Extra 10% Discount off the BST wheels that are ordered through the next 72 hrs. Which of course we are passing on to our customers. So the sale ENDS... This SATURDAY @ 11:59 PM. If you order before then, the...
    • HardRacing
    • Thread
    • 10% bearings box bst carbon checkout click comment discount easy extra fiber final hardracing bst hardracing.com hardracing.com rc390 hrs july21special online page sale specials sprockets tires wheels
    • Replies: 0
    • Forum: HardRacing
  5. D

    Sprocketting

    I would like to know if Duke 250 sprockets can be used in 2017 RC 390
  6. O

    details about chain drive and sprockets

    Hello I have RC390 white ABS, year 2016. I looked at 2016 KTM RC 390 White ABS Rear Wheel | KTM Parts Pro and found two things: 1) that the 90110015100 kit of chain and sprockets, but it doesn't mention what chain, and if it comes with rivet link, or close chain. Anyone knows ? 2) that...
  7. ryandalling

    Number of teeth in the front and rear sprockets stock??

    Stupid idiot sent the bike to get suspension goodies installed and I forgot to count teeth so I could order new sprockets. I'm the stupid idiot and hope somebody could count teeth... Anybody?
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