Re: Question about throttles??
I've been using a thumb throttle on my electric bicycle for some time now. As a motorcycle rider, I thought I'd be unhappy with it (it came with the motor kit). But, in reality, it works well for the type of riding I use it for (relatively level/smooth pavement and dirt trials).
The biggest problem imo with thumb, and twist, throttles in bicycle motor kit "world" is that they're pretty cheaply made (which is common with many "kit" throttles). This, of course, can leave you broken-down somewhere, or even injured due to the twist thrott tube shearing off and then slipping off the end of the bars (I plan on installing a secure bar-end cap on my twist throttle setups that will keep this from happening).