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    Won't rev past 7000

    Glad that was the fix. I highly recommend a new airbox cover and hi-flowing filter element. https://mnnthbx.com/product/390-intake-cover-ktm-duke-rc/ Would wind up so much faster than before. Cheers, William Santa Cruz, Ca
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    Won't rev past 7000

    Do you have intake/air box work? I had a similar situation, found the computer dongle plug under the seat, was sitting in the air box intake mouth. In higher gears would just feel strangled and hit a wall at similar RPMs as yours. Once I moved it would spin to redline again, but showed the need...
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    Engine won't rev past 8500 rpm in 5th and 6th gear

    Do you have intake/air box work? I had a similar situation, found the computer dongle plug was sitting in the air box intake mouth. In higher gears would just feel strangled. Once I move it would spin to redline again, but showed the need for more open free flowing intake. I removed the entire...
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    2022 RC390 Discussion

    I had a couple of great years tracking my nicely modded 2015 RC390. Missing that bike I wanted another smaller bike to complement my bigger track bikes. I also was first not impressed with the initial photos I saw if the 2022 KTM RC390, but since watching many ride/track videos I have seen how...
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    2015 KTM RC390 TRACK/RACE BIKE FOR SALE - ALL THE GOODIES

    Is your bike still available? Thanks, William Santa Cruz, Ca
  6. More updates

    More updates

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    My RC Race build

    I am curious of your finished weight too. I'm thinking of making my RC a full track bike and striping off all of the street parts gear to get a light a possible. Thanks, William Santa Cruz, Ca
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    We Got Our Hands On The New Marchesini Wheels.........

    the wheels look absolutely amazing. Any feedback how do you feel on the road or especially the racetrack compared to stock? Thanks, William Santa Cruz, CA
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    Which One (Chain Options)?

    I run an DID ERV2 520 chain (non-O-ring) and went -1 front and -4 rear (alloy) for max weight savings and slightly taller gearing. Rolling resistance is much better compared to stock! Examples below....BUt please support the forum sponsors! DID Chain 520 ERT2 MX/Off Road Chain - GOLD (any...
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    Has anyone weighed there bike? Road prep or race prep

    Well prepped but still street legal 2015. 325lbs with full tank
  11. O

    Top Triple Clamp & Handle Bars - Coming Soon!

    Whats the status on the fork top and clip-ons? I need to ditch the stock set up for the track. Thanks, William Ow Santa Cruz
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    Top Triple Clamp & Handle Bars - Coming Soon!

    Count me as one interested! William Santa Cruz [Q UOTE=Matt@TYGA;9252] Coming soon. RC390 top triple clamp and handle bars. All specifically designed for the RC390. The whole assembly is lighter than the standard setup, and with the bars being seperate from the top clamp, there's no worry...
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    Wave rotor for $237 shipped?!?

    Oversized. Just need another set of spaces of single 20mm spacers and longer bolts. William Santa Cruz, Ca
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    Wave rotor for $237 shipped?!?

    It is made for the RC390. Odd's it might also fit other bikes too. William Santa Cruz, Ca
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    Fitted Rearsets

    I went the route of first fitting the 320mm disc and the better EBC pads to see what the improvement was from there. Deffinatly better and ABS did not engage for me on the track but I has Pirelli Supercorsa SC1's on the front,so it was going to break free. Phase 2.0 is to fit better levers. All...
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    Fitted Rearsets

    That's great info and good to know. Thanks William Santa Cruz, Ca
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    MNNTHBX RC Fender Eliminator

    Thanks for a well build and great fitting part. William Santa Cruz, Ca
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    Fitted Rearsets

    Fitted a set last month. Used at the track Friday. Worked great and much better clearance plus improved grip. Highly recommend. William Santa Cruz, Ca
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    Wave rotor for $237 shipped?!?

    I was able to get a Galfer 320mm at SBK when at Laguna Seca for $215. Fitted it up with a set of EBC HH pads. Works very well at the track. William Santa Cruz, Ca
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    Swingarm bushings

    +1 Interested. William Santa Cruz, Ca
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