48ml. Hit Martinborough and called in a bike shop for a new cassette. Fit a new chain and 36/12 cassette, old one was 34/11. Hills are steep here so hopefully I can get up a little easier now. I took the Ripataku rail trail to upper Hutt, wow great trail but headwind all the way up the 7km climb. The wind blew me off the bike once. Lovely scenic route to Upper Hutt. I stayed at warm shower host’s, Baden and Shelley’s, fantastic host’s. Very kind and great conversation about their travels.