As I can’t figure out how to start a new thread I’m just seeing if anyone will see my message here. I know this thread is very old...... I’m trying to determine what the minimum blade dimensions are for an SB45 but can’t find any info. I need to know whether it’s worth trekking out to Pooraka SA to get it ground or it’s wiser just to replace the reel while I have the mower stripped down. Any help would be greatly appreciated.