There are several bike shops around Klang Valley, I havent had the time to investigate all of them, but here are a few favorites.
1)Bike Pro Center
Address : 31, Jalan SS24/8, Taman Megah, 47310 Petaling Jaya
How to get there : Get on the LDP heading to Damansara, just after the Kelana Jaya Rapid KL station, turn left
What they sell : Scott, scott, scott and a few other brands. Most accessories, spare parts and upgrades are available.
Organization : Very messy, but you can walk around and touch everything, its one of those stores that you can find a 2006 item at a bargain, if you have the time to look around, that is.
Friendliness: Very Friendly if you come at the right time, weekdays maybe. The seller is most of the time busy entertaining old friends, but if you really need help they would definitely make time for you.
Discount Provision : 10% to 15%.
Website : http://bikeprobicycle.com
Address : 24, Jalan USJ 4/ 9G, UEP Subang Jaya, 47600 Subang Jaya
How to get there : hurm, well its next to SMK USJ 12, there is a map on the website though.
What they sell : Nexus, exitway, gts, lerun as well as kona and giant. plenty of accessories. Yes get your accessories here.
Organization : Very very neat and tidy, because of the neatness the seller would not allow you to touch most of the things unless you are really interested in buying.
Seller friendliness : The guy is ok if you are buying something, the son is friendlier.
Discount provision : 10% to 12%, not that much, but if you buy much you could squeeze in more.
Website : http://www.usjcycles.com
3)Sen Aik Bicycle Store
Address :12-1-1, Jalan Setia Prima Q U13/Q,, Setia Alam, Sek U13, 40170, Shah Alam,
How to get there : well its near Tesco Setia Alam if you know, otherwise checkout the map on the website.
What they sell : They have a fine selection of Jamis and Kona Bikes, a few essential accessories.
Organization : Very good organization for the bikes, and the shop is air conditioned.
Seller friendliness : Very friendly, the seller will make you feel at ease, feel free to ask anything
Discount provision : 10% to 20%, you can also squeeze more sometimes.
Website : http://senaiktrading.blogspot.com
4)Due Roda Extreme
Address :26, Jalan Boling Padang F13/F,Seksyen 13,Shah Alam
How to get there : On the federal highway from Klang, get to the esso just before the batu 3 tol, go through esso to the reach a road that leads you to tesco extra, the shop is located in that area.
What they sell : Expensive brands like Bianchi and Ducati and others, possibly on of the most expensive bike store in the Klang Valley
Organization : Considering the prices of their bikes, they could do better in terms of display.
Seller friendliness : yes, very friendly, but be careful.
Discount provision : 5% maybe, maybe not, I guess you might get some more if you're buying an expensive bicycle.
Website : http://www.dueroda.com.my
I will continue to update this list in the future.This list just serves as guide which is based on the perception of the writer, other might have a different experience. feel free to comment.