Sole trader - bike as a tax write-off?!?

So if I'm using the bike on a daily basis for meetings etc 5 days a week, and riding it 1-2 days over the weekend for fun, does claiming a 3rd of it still make sense?

no. that's 70% if you only ride on 5 days for nothing but meetings.

just calculate how much of the bike use if for self-employed work.