To you perhaps but then you had the unambiguous term winningest to help you      Ambiguity The problem with most successful is that its ambiguous since most successful can in general be defined along many metrics most sold most manufactured greatest market share and yes greatest number of races won using the bike Winningest works along one metric  or two if one is being deliberately obtuse as to what winning means in context of a racing bike So why not pick a perfectly standard word that avoids ANY ambiguity  And contrary to Skyrings fake usage claims winningest is a perfectly standard word   The Grammarist Most participial adjectives are made comparative and superlative with more and most For example we say more troubling and most sickening instead of troublinger and sickeningest So to many Englishspeakers the superlative adjective winningestmeaning having the most winssounds wrong And indeed some peevish grammarians hate the word Yet despite the existence of grammatically unquestionable alternatives most winning best winningest is deeply entrenched in sports commentary and is not going away any time soon Those who dislike it might as well get used to it  Google News searches show winningest has been common since the s and there are scattered examples from earlier The word has always been confined mainly to American and Canadian publications This is also confirmed by Google Ngram  My copy of the OED nd Edition  while it doesnt have usage notes  uses winningest in three of their example quotes for the winning entry So the OED editors dont have a problem with it either