First of all, I appreciate the 99bikes staff as most of them are friendly and helpful. I ordered a Merida Big Nine 60 on 3rd September and picked it up the next day morning. The chain broke in the first five minutes, so I have to head back and get it fixed. The second time I rode it, the rear gears keep clicking, and the gear changing is not smooth at all. So again, had to head back to the shop in the same week. And the third time I hit the road, the front gear shifter became out of order. No matter which gear I tried to shift in on the handlebar, the front gear is locked in the first gear. The 99bikes have all these fixed for me, free of charge. I am not a mechanic so I do not know if the pre-delivery check or test ride would make a change, but I do recommend future customers riding around the shop for a little bit, so they do not have to travel too much to get the bike fixed like what I did. I have not gone for another ride yet, hope there will be no issues anymore.