On average, I shoot for 3 per hour. Depending on the particular bike, I can build them from box opening, to test ride, in 10 minutes for the simple bikes, to 1/2 hour for the bikes that come in with assembly problems. I know the assembly company that we had doing them before, could build them in as little as 5 minutes for the simple bikes, however that came with a price. When I started building bikes at this store, 50 bikes had to be defected out and 25 were in for repair with basic adjustment issues, such as brakes, gears and wheel truing. Now I average less than 1 bike per week returned and most of those are for non-assembly related issues. I'm told that our store is the biggest seller of bikes in the region. I build every bike as if it were for my daughters or neighbors...I take my responsibility very seriously, as I should.