The spelling of the word "Inwheel" is based on the IPA phonetic transcription system which indicates the pronunciation of the word. The word is pronounced as /ɪn.wiːl/ where "in" rhymes with "win" and "wheel" is pronounced like "weel." The word refers to something that is within the circumference of a wheel, usually used in the context of automotive mechanics. Correct spelling of technical terms is essential for clear communication in any field.
To encircle.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.