DIR Return Create A Forum - Home --------------------------------------------------------- CycleKarts GB HTML https://cyclekartsgb.createaforum.com --------------------------------------------------------- ***************************************************** DIR Return to: Tech Forum ***************************************************** #Post#: 11659-------------------------------------------------- 30mm Kart Axel By: winchman Date: October 5, 2024, 7:37 am --------------------------------------------------------- Just started stripping the donor Kart and the axel is 30mm, I am using C90 wheels as I have a few spare so how is best to join the two? #Post#: 11690-------------------------------------------------- Re: 30mm Kart Axel By: winchman Date: October 11, 2024, 1:32 pm --------------------------------------------------------- Just finished stripping the Kart Looking at the axel again I was hoping the Gemini adaptors would fit but they are designed for Pit Bike wheels I am using C90 wheels so does any one make adaptors? Looks like these won't fit? HTML https://www.geminikarts.co.uk/product/steering-wheel-adaptor-plate/ #Post#: 11691-------------------------------------------------- Re: 30mm Kart Axel By: christopher kaminski Date: October 12, 2024, 2:47 am --------------------------------------------------------- HTML https://www.geminikarts.co.uk/product/rear-wheel-hub/ i used these hubs but I had to modify them and the wheel hub. #Post#: 11692-------------------------------------------------- Re: 30mm Kart Axel By: winchman Date: October 12, 2024, 4:45 am --------------------------------------------------------- Thanks what did you have to modify? I already have some 3 stud hubs so a bit reluctant to spend any money if I can make what I already have fit #Post#: 11693-------------------------------------------------- Re: 30mm Kart Axel By: christopher kaminski Date: October 12, 2024, 6:20 am --------------------------------------------------------- So, I machined the Gemini hub to give a step so the wheel hub just slipped on the lip of the drum, then drilled through 4 holes for the bolts then made a plate to fit the outside to clamp it all together. #Post#: 11694-------------------------------------------------- Re: 30mm Kart Axel By: winchman Date: October 12, 2024, 11:28 am --------------------------------------------------------- I was wondering if I could re machine this from Gemini? But I have emailed to ask. I assume there is a reason why people use 4 studs instead of three to bolt the wheels on? #Post#: 11695-------------------------------------------------- Re: 30mm Kart Axel By: Phaeton Date: October 12, 2024, 3:07 pm --------------------------------------------------------- [quote author=winchman link=topic=1543.msg11694#msg11694 date=1728750499] I was wondering if I could re machine this from Gemini? But I have emailed to ask. I assume there is a reason why people use 4 studs instead of three to bolt the wheels on? [/quote] I 'think' but happy to be corrected is that when using pit bike wheels you use the disc brake bolt holds to attach the adapter, for whatever reason 17" pit bike disc brake fitting standard is 4 bolts. #Post#: 11700-------------------------------------------------- Re: 30mm Kart Axel By: Moogie38 Date: October 13, 2024, 2:36 pm --------------------------------------------------------- After a few measurements and I got these hubs made by a local engineering firm. They are for the Honda ANF125 wheels which are very similar to the C90 ones. Also i use 25mm axle. It isnt hard to get someone to make you a set. [attachimg=1] *****************************************************