This paper aims to provide a better understanding of the production of /R/-clusters in a corpus of spoken French. We study word-final CR#, word-final RC#, and word-initial #CR in the LOCAS-F corpus, one of the few French corpora with prosodic annotation (Degand et al. 2014). Different factors are considered in this study in terms of three production outcomes (R-deletion, schwa insertion, and canonical pronunciation of the clusters), including prosodic boundaries, post-lexical context, voicing of the within-word adjacent consonant, speech style, and word frequency. Results reveal that for word-final CR#, 17% of the /R/s are deleted, and 39% of the time a schwa is inserted. Post-lexical context, prosodic boundaries, speech style and word frequency, but not voicing, have significant impact on the realization of CR# clusters. The presence of a major prosodic boundary significantly disfavours R-deletion in word-final CR#. For word-final CR# and RC#, post-lexical consonantal contexts favour non-canonical realizations. Interestingly, for word-final RC#, epenthetic schwa is still observed in 20% of the cases and post-lexical context has a significant influence on the insertions. In word-initial #CR, the canonical pronunciation is systematically observed.