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Tips on gearing a big v-twin for Loudon

  1. #26

    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Chippertheripper View Post
    It's ok, muffin.

    But you're missing out. The big air cooled motors are the best street motors ever. Ever.
    I'm not sure how long my decision to not ride street will last. But based on current models the comeback would be a Yamaha or Beamer. But a lot can change in two years.

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  2. #27
    Lifer Ductard's Avatar
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    Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by tsorfas View Post
    I'm not sure how long my decision to not ride street will last.
    Mine either...but probably at least until I can stop buying parts for this damn Ducati and can actually afford a street bike again...lol.

    I'm scared to get on a sportbike on the street now tho. Too tempting to throw it in to the corners like in the track. Prolly go with a cruiser or a supermoto if I got one now.

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  3. #28
    Back marker... jwm2k3's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Ductard View Post
    Mine either...but probably at least until I can stop buying parts for this damn Ducati and can actually afford a street bike again...lol.

    I'm scared to get on a sportbike on the street now tho. Too tempting to throw it in to the corners like in the track. Prolly go with a cruiser or a supermoto if I got one now.
    My racebike is an 848, my streetbike is an 1198. I've done much more on the track this year, very little street riding.

    I did however rent a big HD for Laconia bike week. THAT was awesome!

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  4. #29
    Where is my fast? GixerJockey's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Chippertheripper View Post
    There was a track map of Loudon gearing for big bikes, that had a 2 over the whole thing.
    Somebody has to have that image somewhere.
    TrickyMike posted that years ago. From his GSXR1000.

    Quote Originally Posted by xxaarraa View Post
    You are going through T3 in 3rd gear on a pani? You don't chug on your way out? Seems you are taking a crap load of speed through there in that case.

    I am a bonafide Loudon newbie, so I am genuinely curious when Loudon gearing/braking threads come up.

    For comparison... On my SV650:

    4th from T1-t2. Downshift to 3rd for T3. Grab 4th going up the hill. Stay in 4th all the way to T11. One downshift into 11. Exit 12 in 3rd. Shift up to 5th on the front strait. One downshift into T1. Wash, rinse, repeat.

    Pick up the pace man. If you're going into T3 in 2nd gear you're going at a snail pace, and are eventually going to high side yourself into the gas station parking lot when you pull the trigger going up the hill.

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  5. #30
    Lifer burnham's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by burnham View Post
    I ran 15-42 on my Aprilia RSVR. I think my KTM RC8 has 16-37 gearing now, I can check on that later. The Aprilis would have the shift light flashing in fifth gear at the end of the straight at Loudon. The KTM has the light flashing in fourth.

    I downshift twice into second gear for T1
    Upshift to third coming out of T2
    Downshift into second into T3
    Upshift into third in T5
    Downshift into second on the way into T11
    FIXED. So I guess I'm only using second through fourth to get around the track. Only the starts are in first. I thought I was going to need to re-gear my KTM when I got it, but its worked out really well for me so far. Maybe if I pick up the pace things will change.
    +1 on being careful going up T4 in third gear. I'm not riding your bike, so maybe it's fine. I've tried it on my RC8, and it is pretty easy to get heavy on the throttle there and load up the engine. I put a more aggressive cam in the throttle, which keeps my wrist in a happier place. That made it easier for me to control the engine at the higher rpms. Seems backwards, but it worked for me.

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  6. #31
    Is this thing on? Mr. Kurtz's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Ductard View Post
    Update: Nevermind, Shane got back to me - he referred me to Eric Wood.
    I assumed his a answer would have been "I rode it with stock gearing, two flat tires, and the peg feelers on...and did 12's."

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  7. #32
    Lifer Ductard's Avatar
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    Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Mr. Kurtz View Post
    I assumed his a answer would have been "I rode it with stock gearing, two flat tires, and the peg feelers on...and did 12's."
    I assumed you would have said properly inflated Pirelli's were critical to doing 12's.

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    Last edited by Ductard; 08-01-15 at 04:39 PM.
    "Where are we going?...and why am I in this handbasket?"
    LRRS 919
    '12 Ducati 1199 Panigale (track) '08 Honda CRF 250 (ice) '02 KTM 520 SX Supermoto (track)

  8. #33
    Where is my fast? GixerJockey's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Ductard View Post
    I assumed you would have said properly inflated Pirelli's were critical to doing 12's.

    ... For everyone except Shane.

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  9. #34
    Your Father csmutty's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    15.5 on a crf450 pretty much just called out everyone as a bitch.

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  10. #35
    Lifer Kurlon's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by csmutty View Post
    15.5 on a crf450 pretty much just called out everyone as a bitch.
    When he beats my trap speed at Boxshop with that 450 I'll care. (Set with my 70.)

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  11. #36
    Lifer Falko's Avatar
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    Re: Tips on gearing a big v-twin for Loudon

    Quote Originally Posted by Chippertheripper View Post
    It's ok, muffin.

    But you're missing out. The big air cooled motors are the best street motors ever. Ever.
    My Guzzi was awesome for the street. Not quite the power of a Duc, but great motor and trans for the street.

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