There are 17 words that end with 'ycles'.
| cycles | bicycles | calycles |
| recycles | biocycles | epicycles |
| tricycles | unicycles | hemicycles |
| megacycles | exercycles | monocycles |
| gigacycles | kilocycles | pericycles |
| motorcycles | heterocycles | |
Note: These 17 words that end with 'ycles' are found from the USA & Canada version of the tournament Scrabble word list.