Why is 1” throttle so uncommon

[Salt-rider]

I just recently got my first mini bike frame as a build project. I’m almost done all I need is a twist grip throttle and a brake and I’m ready to ride. I ordered a twist throttle off Amazon and it’s just under the size I need for the handle bars I have. It’s a 7/8”(22mm) where I need 1”(25mm). I have been looking everywhere for a kit like the ones on Amazon but everything is 7/8” not 1”.. why is this?? I would think that it would be just as easy to find 1” as it is to find 7/8”. The frame I have does look older, but it still shouldn’t be that hard to find a throttle for this bike. Can anyone who has 1” handle bars for their mini help me?

 

[desert rat]

1" is big so you got to go big. here you go. https://www.jpcycles.com/product/5000295/biker-s-choice-replacement-throttle-assembly

 

[Havasu Dave]

1" throttles are common. Here are some on Ebay sold by the company who is supplying this forum:

http://rover.ebay.com/rover/1/711-5...0001&campid=5335845805&icep_item=154052059307

 

[Salt-rider]

Thank you guys. I’m new to the mini bike game and when I’m done I’ll post a pic. I’m extremely excited to finish this build.