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Track duty swing arm length

This is a discussion on Track duty swing arm length within the Grom Racing forums, part of the Honda Grom Garage category; Those of you who track your groms. Would slightly longer swing arm be beneficial? I’m not talking about those really long extended ones. Wanted to ...

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Thread: Track duty swing arm length

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    Track duty swing arm length

    Those of you who track your groms. Would slightly longer swing arm be beneficial? I’m not talking about those really long extended ones. Wanted to get swingarm with bearings. Seems a lot (overracing,gcraft etc) sell in +5cm,+6cm (about 2”).

    Thanks in advance!

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    If you run on kart tracks you'll want to keep it stock length.
    dhmotoring.com

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    I’m glad this topic was brought up. Not to hijack but, if my bike hits a dip mid corner it gets upset easily. Short wheelbase is to blame. Is the difference significant installing a short extension like MNNTHBX sells ? I don’t want lower or stretch just a little more stability without sacrificing a lot of the quick turn in.
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    Keep your swing arm stock, upgrade the swing arm damper to brass or something besides the rubber damper, or find the newer swing arms with real bearings in them, change out the stock shock and adjust the type of tire you use and also the air pressure in the tire and you should be good to go.

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    If you haven't already I would upgrade the rear shock first. The stock shock has hardly any rebound damping at all.

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    Quote Originally Posted by kc4sox View Post
    I’m glad this topic was brought up. Not to hijack but, if my bike hits a dip mid corner it gets upset easily. Short wheelbase is to blame. Is the difference significant installing a short extension like MNNTHBX sells ? I don’t want lower or stretch just a little more stability without sacrificing a lot of the quick turn in.
    You can likely dial that out if you have an adjustable rear shock. Stretching the arm changes the leverage ratio and will require either a stiffer spring or more preload to set the sag, which ultimately lowers the resolution of how much control the shock has for each unit of travel.
    kc4sox and asume like this.
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    Quote Originally Posted by 808Ray View Post
    Those of you who track your groms. Would slightly longer swing arm be beneficial? I’m not talking about those really long extended ones. Wanted to get swingarm with bearings. Seems a lot (overracing,gcraft etc) sell in +5cm,+6cm (about 2”).

    Thanks in advance!
    Where in Hawaii are you tracking your Grom?
    Quote Originally Posted by Paultergeist View Post
    It seems like there is always one more thing to buy, THEN I’ll really notice a difference in performance.

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    Quote Originally Posted by activ3 View Post
    If you run on kart tracks you'll want to keep it stock length.
    Thanks! Just ordered gcraft triple square standard length.

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    Quote Originally Posted by solidjohnny View Post
    Where in Hawaii are you tracking your Grom?
    Howzit! No legal track. Just like cornering bike. Most build stunt or bling (extended and dropped). I think guys are track riding at k bay tho.

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