G2 throttle tubes.

Discussion in 'BearClaw Corner' started by BigNorm, Feb 1, 2017.

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  1. BigNorm

    BigNorm Boobie Inspector

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    I just called G2 and enquired about the aluminum throttle tube. They informed me that they only make them for 7/8" handle bars. So I guess without modifying the throttle end down to 7/8 I'm stuck with plastic throttle tubes for now. Does anyone know a good source for plastic throttle tubeso? I want to change my grips and thought it might be good to keep my stock grip on my spare.
     
  2. Ishrub

    Ishrub Retired and loving it!

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    I'm pretty sure R3 std same as R3T. I have read a few cut their plastic OEM ones from stock grips to re-use in aftermarket grips. Here is a cheap option:

    Please don't jump him folks, fixed I will send a PM.
     
    Last edited: Feb 1, 2017
  3. BigNorm

    BigNorm Boobie Inspector

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    Thanks
     
  4. 1olbull

    1olbull Riding Motor Since 1950

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    Just FYI -
    The OEM throttle grip CAN be cut away from the tube and a new grip installed.
     
  5. BigNorm

    BigNorm Boobie Inspector

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    Thanks Bull. My concern is that I've heard tales of it being a weak link. I've bought a spare today to keep in my bag
     
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  6. barbagris

    barbagris Mad Scientist

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    I made a new set of bars and made the throttle bit 7/8". Then put good solid bearing material between tube and bars.

    But I am beginning to think we need somebody who is good with a lathe.
     
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  7. BigNorm

    BigNorm Boobie Inspector

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    Thanks grey beard.
     
  8. BigNorm

    BigNorm Boobie Inspector

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    Who sells the throttle with the bearing design @barbagris
     
  9. barbagris

    barbagris Mad Scientist

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    I made my own. Used solid plastic bearings from IGUS. igusĀ® energy chainsĀ®, flexible cables, polymer bearings - Sent them the dimensions I wanted they sent me a pack by return. Glued inside the OEM throttle tube. Nothing more. Somewhere I have a set of pattern Harley grips I modified as a test - I'll look'em out and take a picture.

    Edited - OK, I think the harley bits may have gone in the bin - but the bearings I used (I found the bag) were the IGUS MFM-2228-30 - 22mm ID 28mmOD and 30mm long. I ordered the model with flange though the MSM (no flange) variant might be easier. I can't remember if I had to skim the OD down a bit. Probably (I have a small lathe) as 28mm OD sounds a bit big.

    The other option COULD be to have new throttle tubes 3D printed in fiber reinforced nylon. Be a piece of cake (via 3D-Hubs) if somebody could get a pro-grade HD 3D scan done. I am looking here but so far no go. Or have some made to measure by Igus.
     
    Last edited: Feb 4, 2017
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