SOLVED. Kids Science Fiction book from the 1950s or 1960s about an inventor. [s]

[Lizzie]

I’m looking for a science fiction book for kids from the 50s or 60s about an inventor who has invisible material he sells to the military. He rides a bicycle that’s partly invisible which makes it look like it flies. It’s not “Danny Dunn the Invisible Boy”.
Thanks for the help!

[SBC]

Hi Lizzie, is there anything likely on these lists?

https://www.goodreads.com/list/show/1...
https://www.goodreads.com/list/show/1...

[Capn]

SBC wrote: "Hi Lizzie, is there anything likely on these lists?

https://www.goodreads.com/list/show/1...
https://www.goodreads.com/list/show/1......"

Just wanted to add the "Invisibility" list to the mix: https://www.goodreads.com/list/show/1... :)

[Lizzie]

Unfortunately I don’t see anything that seems to fit on these, but thank you!

[Joseph]

Maybe The Fabulous Flying Bicycle, by Glen Dines?

[Lizzie]

Joseph, this seems to match. Thank you so much!