Jackshaft SBP shifter kit help

Discussion in 'Transmission / Drivetrain' started by matman55, May 27, 2012.

  1. matman55

    matman55 Banned

    i am looking at buying a shifter kit from SBP and i want to get infomed befor i jump in with two feet.

    -will this kit be easy to install
    -is there any other shift kits out there that are compatible witha typical chinnies 2 stroke 66cc engine(grubee skyhawk)
    -will this work on my single gear huffy beach cruiser?
    -can i allso put it on my 8 gear schwine point beach?
    -and what are the advantages of using this kit


    Thanks for the advice!-matthew










    :grenade4:
     

  2. Lunardog

    Lunardog Member

    I just finished installing mine a few days ago so I can give you some basic info.
    1. The kit does take some mechanical knowhow but is not overly difficult. If you take your time and follow the directions SBP did a nice job of explaining the install.
    2. I did a bit of research on these kits and by far SBP is the most popular and recommended. It is very well designed and constructed.
    3. The idea of the shift kit is to allow you to use your bikes rear gearing and deralieur therefore it will serve no purpose on the beach cruiser.
    4. I just put it on a schwinn 21spd mtn bike with a shimano gear set so I would assume you could use it on the geared bike you have. Contact SBP if your unsure.
    5. More low end torque for climbing hills and a faster top end speed without having the engine at max rpm's.

    Hope this was helpful.
     
  3. matman55

    matman55 Banned

    ok!so it i guess ill ditch the huffy and put it on the schwine(its not a bad upgrade if i do say so myself)Thanks!
     
  4. Al.Fisherman

    Al.Fisherman Active Member

    I'm not running a shift kit, was going to but don't need the low end torque, and my bike is plenty fast enough at less then full throttle, although I did change my rear wheel/tire to a multi gear rear axle. My reasoning was so I could choose a better gear ratio to start the bike. My body/heart didn't like the stock setup on a cruiser. Changing out the rear wheel is just a thought.
     
  5. IINoxiousII

    IINoxiousII Member

    I think it is a great add-on. It did wonders for my low end torque and it added about 10 mph to my top speed. To counter that, it takes a couple days getting used to and you won't be able to accelerate quite as quickly until you master the shifting, but the benefits outweigh that. Another benefit is it takes the stress off of your spokes if you are using the stock hub adapter that connects by sandwiching the spokes. I broke a couple spokes b/c of that. A possible set back is mounting it. It is important to align it true or you will have issues with the chain popping off. Take care in your installation and you will not have an issue. If I were to go with the chinagirl 2 stroke again in my next build I would definitely include the SBP shift kit.
     
  6. Fabian

    Fabian Well-Known Member

    Just get the kit. Just get the kit and be done with it.

    Read the instructions, then read the instructions a second time.
    Bolt everything together and your good as done, and ready to have fun.
     
  7. matman55

    matman55 Banned

    Thats what i first thought,but then i started thinking logicaly like"what is its sa peice of cr**,"or"mabey there a online communtity of people who were in my situation once and are willin to help me so i dont make any mistakes"

    im just being smart
     
  8. Fabian

    Fabian Well-Known Member

    35,000 kilometers on my SickBikeParts Shift Kit - Just get the kit and be done with it.

    Naturally, the items which normally wear through use have been replaced over time as part of a typical maintenance schedule, but at the end of the day,

    Just get the kit and be done with it.
     
  9. matman55

    matman55 Banned

    so your saying that this kit is totally worth it?its not going to fall apart the first time i try it out?
     
  10. Fabian

    Fabian Well-Known Member

    35,000 kilometers on my SickBikeParts Shift Kit - Just get the kit and be done with it.
     
    Daddy~~JD likes this.
  11. Fabian

    Fabian Well-Known Member

    Get the Deluxe Shift Kit option
     
  12. Barry

    Barry Member

    Hello Out There!
    Any of you tried using the Shift Kit with a HS 49cc 4 Stroke w/4G Skyhawk gearbox? The vendor doesn't answer my emails..
    Tanks
    Barry
     
  13. Barry

    Barry Member

    4 stroke shift kit

    Hello Out There!
    Any of you tried using the Shift Kit with a HS 49cc 4 Stroke w/4G Skyhawk gearbox? The vendor doesn't answer my emails..
    Tanks
    Barry
     
  14. matman55

    matman55 Banned

    da** dude,thats got some seriouse miles on it. i dont think ill got even go that far before i get a car.
     
  15. The_Aleman

    The_Aleman Active Member

    Hey Barry, I was one of the first to shift-kit a 4G back in 2010. I have it running to a Sturmey Archer X-RDC - a 3 speed internal hub.
    I have about 5000 miles on it and it's still as much a blast as it was on day one! 0-25MPH acceleration is phenomenal!

    Note that the only configuration that fits without mods is a 4G for "5/8" keyed shaft Huasheng or GXH50. The included 206MM spindle with cranks will clear the 4G just enough.
    You will have to mod the 4G cover slightly. Depending on what shift setup you have, you'll have to figure out what inner sprocket will suit your bike the best.

    The other 4G is a little over a half an inch wider due to having a domed clutch bell. Depending on whether you have a 5:1 (100T pulley) 4G or 4:1 (80T), the crank arm may hit the pulley.
    You can still get it to work, but you may have to mount the motor higher or use shorter crank arms/pedal extensions.

    I've attached a pic and have a few more on my profile picture album. If you have any more questions, feel free to ask!
     

    Attached Files:

Loading...