It's a motorbike the OP is referring to for use in his trade. That wouldn't be part of the CTW scheme.
I really don't see any intention by the OP in their question to either play games or defraud anyone. Legitimate business use of a motorbike in one's sole trade is no less allowable than similar use of a car or other transport. A client of mine (now retired) kept a motorbike at his workshop. He arrived and left each day in his private car. He used the bike solely to collect parts, go to bank (or his accountant) and visit customers. It was cheap, convenient and saved him time. In fact, his motoring deductions were probably less than might otherwise been the case using other means of transport. He was audited by Revenue over the years. The bike was never an issue.
However as has already been said, travel to/from work is not allowed and only use "wholly and exclusively" for the sole trade would be allowable, this means a clear method of calculating business/private use must be used and records maintained in support.