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Always thought those looked handy, but notice you have to slide the brake housing away from the throttle a hair to mount it. Does that affect the grip/ergonomics any?
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I had my bike about four months before I got the throtle lock thing, I do not know the brand of mine since it was a gift.
I did have to move the brake housing just a bit, but it really did not affect the grip or how it feels or anything. I did see, maybe on the CD, a picture of one that was mounted right to the housing with the kill switch and starter button, but it has been a while since I saw it. As best I remember, I am guessing the housing was taken apart and either tapped for the bar that goes to the lock or maybe a nut was put inside. That looked a little cleaner, but mine was not broke so I didn't try to fix it!
I know everyone is different, but if mine fell off this morning, I would go looking for another.