I went into the store a couple of days ago with my old 68x110mm bottom bracket and hoped that the mechanic could help me find the same one. He eventually found one for me so I didn't think too much about it and took it home. Got it installed but couldn't figure out why the front derailleur wasn't shifting to the largest chain ring spent about 5 hours troubleshooting it and ended up sending the bike to the movement system in Burswood. They found out that the bottom bracket that the mechanic gave to me at 99bikes was 68x122mm, ended up paying the labor as well as the new bottom bracket which cost me quite a lot of money. On a separate event. I paid 120 for the bike to get serviced and went back there 3 times within 2-3 weeks after service because it wasn't shifting properly they still didn't fix the problem completely and they had no idea what was wrong with it. Very disappointing. I wont be coming back here for any mechanical service, or trust their mechanical knowledge with my bike, the quality of the mechanic here is not good.