Since getting back into cycling this year I've been to almost every bike shop in and around Taipei on more than one occasion. So I thought about doing a quick rundown of some of the shops (the ones I have bought something or had some bike work done at) for any of you needing to find a bike shop in Taipei area.
1. Giant shop on the corner of Heping East road and Guling street (5 minute walk from the Guting MRT station exit 8). They have mostly Giant stuff, but also a lot of high-end road (Campagnolo) and MTB bike stuff (Fox). Their prices are very good, and the staff their are made up of four young, but very competent and helpful mechanics. Most of them speak pretty good English there. I highly recommend them.
2. Seven Park, going on Keelung (Jilong) road heading towards Neihu, turn right on the first street after you pass Zhongxiao, you'll see them a few buildings on the right. They have a huge selection of mid-range to high-end road and MTB bikes (Specialized - BMC), apparel (mostly Assos), and components (mostly Shimano). The owner and mechanic are both very nice and competent guys. Their prices a very reasonable. They speak some English. I would definitely go back to them for bike stuff.
3. Louis Garnau shop on ChienGuo heading towards Xinyi road from Heping. Its a small shop, they mostly sell Lg bikes and stuff, shop owner is nice enough guy, and his prices are reasonable. The bikes range from low-end to mid-range road, touring, folding, and MTB bikes. Nothing special about this shop. Their are two to three more bike shops heading up towards to Xinyi road that are about the same. If you are hunting for a daily commuter, nothing too special than these shops along this section of ChienGuo are a good choice to shop around at. On the opposite side going towards Xinhai road is another shop, but they offer a higher-end range of bikes and parts. You'll find a lot of reasonably priced American brand (Kona - Raleigh) MTB and XC bikes their. The owner is an older guy, don't know about his English abilities, but he seems to be quite nice. It's worth a visit.
4. Howard's Bike, located in lane 23 of Bade road before Guangfu road. If you are looking for high-end stuff (Cinelli - Colnago) and have really deep pockets then this is the shop for you. The owner is very competent and is a seasoned triathlete. Their shop is very posh, and the area where they work on bikes, looks like it was made for servicing F1 cars. Unless you are looking for a specialty item or bike that you just can't find anywhere else, I wouldn't buy anything from them. Their prices are inflated, always triple of what another shop would quote. They are exclusive dealers of some brands such as Cinelli and Ceepo, so they can get away with crazy prices, cause they know if you really need those bikes or components, you can only get it through them. But as I said, if money is not a concern, and there is some Italian bike you really can't find anywhere else, I'm sure they can get it for you.
5. Colorful Bicycle, located on the corner of Ren'ai and Linsen Road (right before the Nanhai tunnel). This is a very small and cramped shop, but amazingly it is packed with some hard to find and expensive bikes and parts. They have everything from every major high-end brand (Pinarello Look, Colnago, Cannondale, etc.). I would recommend checking them out if you need to find something that other shops just don't have in stock. Their prices are okay. I would buy stuff from them but I will never take my bike to them for any kind of work. The owner is a not very helpful, and has the worst attitude;he answers any question with a grunt. I took my bike into change the handlebars, which was supposed to be free of charge if I bought it from him which I did. When I picked up my bike he told me he had to replace the derailleur cable cause it was too short, (it wasn't, he didn't measure correctly and cut my original cable too short) so I was charged an extra $500 bucks. No biggie, I ride off and after a few blocks I notice that I couldn't shift smoothly, I looked down to see that the derailleur cable he had just replace wasn't fastened tightly and had come loose. Not very professional. So conclusion, worth checking out for specialty items, but avoid for bike servicing.
6. Velo Boutique, located behind the Agora Garden Hotel near Taipei 101 area. It is a very upscale shop. They mostly carry Klein Trek, and Look bikes, and a whole range of gear and parts. Worth checking out for gear, their prices are okay, but its their wide selection that is the real draw. Feels more like a store, then a bike shop. Not sure about how competent they are, I found the guys their a little unhelpful, they seemed more like salespeople. If you'll into American brands then they are a good choice.
These are the shops I have personal experience with, there are many more that I just have not visited yet. So please help to add to this list with your own personal experiences.