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Going faster on flat sections ?

Discussion in 'Downhill & Freeride' started by seismic, Oct 9, 2005.

  1. seismic

    seismic Turbo Monkey

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    Ok...here is the deal....our local course is totally flat on the first section. I have 20 feet to a double built with no kick which I find kind of difficult to get over. Of course the obvious answer to my question will be "pedal !" but I have been thinking about if there are any ways I can get my bike to get faster on the flat sections! Smaller tires, harder compound, lighter tubes/rims....whatever other suggestions....

    For the moment I ride:

    Minions F - front and rear (60a)
    DH tubes
    Arrow rims
    flats (pedals)

    Any advice except to push the pedals and pull ??? I think I am having a hard time getting the bike up to the right speed.......

    well....enough blabla.....any suggestions ?
     
    #1 -   Oct 9, 2005

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  2. Boxxer

    Boxxer Monkey

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    Id prolly x the DH tubes. Its rotational weight which will effect how well you pick up speed.

    Other than that, you know the deal. Maybe pick up a shovel and give that first hit some love.
     
    #2 -   Oct 9, 2005
  3. S.K.C.

    S.K.C. Turbo Monkey

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    ...hehe - well the number 1 question you or anyone should be asking themselves on a course with a lot of flat open sections is: "What is my gearing???"

    Are you trying to "Mongo" a 44t chainring up front going to a road cassette???

    Arrow rims are SUPER heavy so that isn't really going to help you, but I would ALWAYS recommend running a soft compound tire up front. It may give you a bit of rolling resistance, but the performance you get out of it in the corners is invaluable.

    If you want to get up to speed very quickly - this is your problem correct? - then gear down to maybe a 38T chainring up front with a mountain cassettte in the back.

    Practice, and work on your shifting under full power. Learn how to fire off those gears as quickly AND smoothly as you can without forcing the chain from gear to gear with pedal strokes.

    Also: if it's just a set of doubles - pump them 4X/BMX style to get through them as fast as possible.
     
    #3 -   Oct 9, 2005
  4. Bicyclist

    Bicyclist Turbo Monkey

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    That lower bar will help too. I would also get rid of the DH tubes, they're super heavy.
     
    #4 -   Oct 9, 2005
  5. Kntr

    Kntr Turbo Monkey

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    Your tubes and rims are super heavy. I run thin tubes and lots of talc powder and never have a problem with flats. How is the rest of the course? Could you get away with 2.3s or single ply even?

    What about clipless pedals? I think they really help for pedaling.
     
    #5 -   Oct 9, 2005
  6. jake133

    jake133 Monkey

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    do you have Arrow DHX's or FRX's ?
    sometimes it is better to not pedal on cetain parts so you will have more enegry for other parts of the corse.
     
    #6 -   Oct 9, 2005
  7. Zutroy

    Zutroy Turbo Monkey

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    Best way to get faster on the flat, train and get in great shape...then you can out pedal the other guys and still have the energy for the next section.
     
    #7 -   Oct 9, 2005
  8. snowskilz

    snowskilz xblue attacked piggy won

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    build a small double on the way to the bigger double. This will give you the ability to pump the landing and shoot out like a rocket
     
    #8 -   Oct 9, 2005
  9. seismic

    seismic Turbo Monkey

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    Well, - I run the DHX rims and I know they are heavy. I think I will try to get some lighter tubes (any recommendations??) and maybe try a 2.3 in the rear. Would a 2.3 minion 60a front in the rear be a good choice ?? We are talking loose over hardpack...often very dry.

    Is there a lot of weight saving going from dual ply to single ply ?

    I am already running a 38T, but I am not smooth...so there is no doubt that apart from the gear...tranning is the way.

    Thanks for all the good advice !
     
    #9 -   Oct 9, 2005
  10. Kntr

    Kntr Turbo Monkey

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    I have run specialized thin tubes for 5 years. I dont think there is a better thin tube for the price.

    Check the maxxis site for weights of single ply vs dual ply. There is a huge differnce.

    I run the Minion F in the F and R and love it.

    The nevegal 2.3 single ply front and rear would be awesome in the conditions you discribed.
     
  11. mobius

    mobius Turbo Monkey

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    Lighter rims, High Roller rear will accel and roll faster. Pump and stay low and pedal ur ass off.
     
  12. Transcend

    Transcend My Nuts Are Flat

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    clipless pedals.
     
  13. AlmostHeaven

    AlmostHeaven Turbo Monkey

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    since everyone is saying the exact same thing, let's make one big list so we don't keep repeating ourselves. :thumb:

    -clipless pedals
    -lighter rims and thick XC tubes
    -check out the Kenda FastTracker tire. it's semi-slick in the middle with 70d rubber. the cornering knobs are closer to 40d and corner AMAZINGLY, almost as well as your 60d Minion. the semi-slick will allow extremely fast rolling (moreso than you can get with ANY DH tire), and all the cornering that needs to be done can easily be taken care of with the side-knobs. you'll still want the tire in a 2-ply unless you're a very smooth rider since you're running the XC tubes.
    -i'd reccomend going with a 40-42t ring and a 11-32 road cassette. that will probably allow for maxium pedal power (at least w/ flats).

    *-buy/ride a BMX bike! visit your local trails/jumps and pump around for the first few times. get a feel for pumping over any terrain. you don't know how much riding a BMX has helped me.

    guess that about covers it, huh?
     
  14. seismic

    seismic Turbo Monkey

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    Thanks guys !!!!!
     
  15. haromtnbiker

    haromtnbiker Turbo Monkey

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    Stiffen up your suspension some? That would help alot.
     
  16. CBJ

    CBJ Turbo Monkey

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    Or tubeless - I have had good results running Maxxis tubeless.

    And and Orange is a great bike for riding in Denmark as the DH Cup has shown and that bike accelerates like nothing else I have ridden and its lights both the Patriot and the 22X. A 6" front and rear Patriot, tubless and you will sprint like a BMX.
     
  17. skinny mike

    skinny mike Turbo Monkey

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    having clipless pedals will definately help you with sprints. that and training will improve your speed by a considerable amount.
     
  18. Bicyclist

    Bicyclist Turbo Monkey

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    I agree with the comment about riding BMX. I just built up a cheap (like $150) BMX bike and in a week of riding it I've improved so much it's insane. I hopped on my friends HT at the local drops and had more style than I ever had when I rode there every day on my BigHit.
     
  19. BMXman

    BMXman I wish I was Canadian

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    Are you already on clipless? If not, I don't think switching now will make you faster....D
     
  20. caputo1989

    caputo1989 Turbo Monkey

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    Too many Tourists COLORADO the place being taken o
    Waer a speed suit.
     
  21. kinghami3

    kinghami3 Future Turbo Monkey

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    drill some speed holes
     
  22. seismic

    seismic Turbo Monkey

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    Yeah...a full latex suit will make me faster (and make my friends beat me with a stick when they meet me on the track :D )
     
  23. ohio

    ohio The Fresno Kid

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    Best thing you can do is run higher air pressure, but you'll give up traction. If you switch to tubeless, you'll gain that traction back even at the higher pressure. Not to mention save weight. Win-win. And if you do it with rimstrips it's cheaper than new wheels or bars...
     
  24. Eurotrash

    Eurotrash Monkey

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    you should try a 38-40 chainring and a road cluster on the back, you will be able to accelerate more smoothly and faster.
    you could also try the semi slick on the back if the course isn't too steep.
     
  25. BSEVEER

    BSEVEER Monkey

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    Try to go faster before the flat section and carry that speed through it.
     
  26. scottishmark

    scottishmark Turbo Monkey

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    increase the pressure in your tyres (if they are at all squishy) and that'll help no end with rolling resistance.

    Green doublewides help too
     
  27. seismic

    seismic Turbo Monkey

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    I already run a fairly high pressure........but a road casset could be an idea.
     
  28. vitox

    vitox Turbo Monkey

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    put on an spv shock

    :p
     
  29. seismic

    seismic Turbo Monkey

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    I am thinkning about getting some Maxxis tires (maybe in 2.3 or single ply) since I can not get Kenda here where I live. I recommendations for the "fastest" combination of Maxxis tires which will still hold up ?

    Odd Q, - I know ....but I want to try something to get the sled rolling !
     
  30. Gary

    Gary "S" is for "neo-luddite"

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    Can't believe everyone's telling you to buy this, fit that, change your settings etc.

    Maybe you're just sh1t

    ;)
     
  31. seismic

    seismic Turbo Monkey

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    Yeah.....on the other hand...if nobody said anything the forum would be quite boring :p
     
  32. go-ride.com

    go-ride.com Monkey

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    I'm not so sure about a 2.3 on an Arrow DHX. That rim is really wide and has super stiff sidewalls. A smallish Maxxis 2.3 will have very vertical sidewalls on that wide rim, combined with the super stiff rim, and will pinchflat easy. A single ply will pinch even easier.

    I do a lot of tire testing and practice a lot on 60s, but unless the course is really flat my race times are always faster on sticky tires. At minimum I would run a sticky on the front. Not that you asked about this.

    My recommendation would be a lighter set of rims (Mavic 729 front, 721 rear), some mid weight tubes (IRC makes a light 2.5 rated tube), and 2.5 Minion Fs front and rear or a Highroller rear.

    Higher tire pressure does roll faster to a point, but can also spin easily on starts, plus cause you to blow a lot of corners. Generally, I run the lowest pressure I can without hitting my rims, but 1 or 2 times on a race run. For me that's usually 22 psi front, 27 psi rear. With arrow rims you will have to run higher psi than that to prevent flats.

    If you really want to go faster on a flat start clipless is the best way. Every spring I spend some time DHing on flat pedals (snow & mud) and it is a blast, but by the time I have to race I realize how poorly flat pedals accelerate a bike.

    The other option is to stiffen up your suspension, which might not be so good for the other 98% of the race course.

    My last piece of advise is not to worry about that one small section of race course. Way too often racers get caught up with trying to win a race on one small part of a course. Ride that section the best you can and work on going a bit faster on the rest of the course where your bike and skills work best.
     
  33. Threepointtwo

    Threepointtwo Monkey

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  34. Eurotrash

    Eurotrash Monkey

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    :stupid:
     
  35. seismic

    seismic Turbo Monkey

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    Yeah....and I need her outfit too !