Throttle Modification/Replacement

Discussion in 'Performance Mods' started by Demosthenese, Mar 20, 2008.

  1. Demosthenese

    Demosthenese Guest

    Hey all,

    One of the first things i did when i got my mtb was to grab the dual brake leaver. My setup (of which i have no pics, sry) is the brake leaver on the left, with the clutch under it so i can pull both together, since i let the engine die at lights instead of idling. On the right, i have the killswitch in the plastic mount that comes with the plastic twist throttle. The twistgrip throttle, however, is not on there. My bike has multiple gears, and so it has trigger shifters intergrated with a brake leaver (standard shimano ones, as on most mountain bikes). Since i have the dual pull leaver, the brake on the right hand side is not used. I wired my throttle cable into the brake leaver, which was literally a perfect fit, and now i have a throttle instead of a brake. It is WAY easier on the wrist then holding the twist throttle at full for hours, and the mechanism is certainly superior to the bendable plastic throttle. I love it.

    Anyone else modified their throttle? How, with what, etc.?
     

  2. eltatertoto

    eltatertoto Guest

    on my minibike, until my throttle was shipped to my house, i cut a brake lever in 1.2 and mounted it facing me rather than the road, and so i had a quad or snomobile stlye throttle. i favor the throttle though cause i get less cramps in my fingers. but that would be good for locking the throttle in place. so ya can stretch and not slow down....
     
  3. Demosthenese

    Demosthenese Guest

    that's sick, if you needed to keep both brake leavers, turning it around is an ideal solution.
     
  4. sparky

    sparky Active Member

    Wow... I was gonna start a new thread to see if anyone had put a 4-wheeler throttle on their bike. I couldn\'t see myself being too thrilled about having a twist-grip throttle...

    I\'d prefer a real 4-wheeler throttle if it would work and someone has seen it done before, but at least I know it\'s possible to get rid of the twisty throttle.
     
  5. eltatertoto

    eltatertoto Guest

  6. sparky

    sparky Active Member

    Ya, I saw that vid a while back. Totally forgot about that part, tho.

    I would still rather have a real 4-wheeler throttle, tho. Supposedly my friend has a spare, I wonder if fitting would be the same. I am pretty sure some companies make throttles with weird fittings so that you have to buy their cable. Maybe it is possible for some, tho... dunno
     
  7. SirJakesus

    SirJakesus Guest

    I've seen somebody on this forum use the cheapie style lever shifters turned upside down for a thumb throttle too, looked better than using a break lever. Personally I think I'm really going to enjoy the 2-3 finger lever throttle supplied with my staton kit. The only problem I can imagine with this kind of throttle is it's great for running wide open but may not be the best for cruising at lower speeds.
     
  8. Alaskavan

    Alaskavan Guest

    I like the small lever that comes with the Staton kits too. I thought about using it on the trike, but it works so well on the Trek. I left it there, and use a brake lever on the trike.
     
  9. sparky

    sparky Active Member

    Well... I wanted to do this really bad. I went to my bicycle shop and found an all-in-one ratcheting shifter & brake lever for a typical mountain bike. I disabled the ratcheting part of the shifter so that the thumb lever would twist all the way back & then spring back to the front. Once I put the cable inside, I could tell the cable only moves MAYBE 1/4". So I enabled the ratcheting part, hoping I could have cruise control (even tho it's prolly not the safest idea), but the throttle cable has 2 fittings on its ends, a brake lever fitting & a fitting for the carb that's smaller than the shifter cable fitting. So in order to use the shifter as my throttle lever I'd need to dremel the fitting to fit inside the shifter. I'd also need to pull the cable out from the housing to slide it thru the shifter, but this is impossible because of the fitting on the carb's end. Seems like a local small engine repair shop would be able to put another fitting on for me, but I dunno for sure.

    How did this guy do this shifter level throttle?? His setup must have been different from mine. I guess I'll have to stick with the brake lever cut in half idea. =^((
     
  10. eltatertoto

    eltatertoto Guest

    (never having a thumb shifter) all i can say is everything varys. if you go to wallmart right now, the shifter cables have bal things, not cylnders on the end. mabey thats it?? dunno.
     
  11. eltatertoto

    eltatertoto Guest

    if thats the case you should be able to melt some led shot or somthing...
     
  12. Alaskavan

    Alaskavan Guest

    I made a throttle cable for my trike. I used a bike gear shift cable. The lead end for the shift cable works in the carb. I had to make a (fitting?) for the lever end of the cable. I determined where it had to be on the cable to give me about the right length (I added some adjustable pieces to the cable housing, so I didn't have to be exact). Then I cut the cable to length. I drilled a small hole in an 18-10 AWG wire Crimp Connector. I fed the end of the cable through it and frizzed up the end of the cable. Then I filled the Crimp Connector with solder. I tried lead, but it didn't work well for me.


    IMG_2694.jpg

    IMG_2700.jpg

    It's working well so far.
     
  13. sparky

    sparky Active Member

    I LOVE IT!

    I can tell your from Alaska. I'm gonna stick with the brake lever for now since I've got it working now and haven't had the throttle working properly for more than an hour. The bikes definitely broken in now... and I LOVE IT!
     
  14. t14revolution

    t14revolution New Member

    I guess I've finally found who else did a level throttle! mine is mounted onto my roadbike. I was too cheap to buy the fancy shifters fuzed with the brake levers, so I just bought another set of brake levers (5 bucks each a garage sale). I needed it to be flush at the other side for the bar tape, so it worked out. I can hit the brakes with my index finger and throttle/clutch with the rest of my fingers.

    [​IMG] [​IMG] [​IMG]
     
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