Thanks Zehner, worldbike looks good, I have never heard of it but its close to my place. I will check it out.

Where is the located of the bike shop on latpraw or somewhere near? I'm looking for a standard bike. How much should it be? It's going to be my first touring bike. thanks,

fietsman, do you know the price of rentals? I guess we should try and gather that info as well as there seems plenty of folk interested in renting short/long term bikes when they come here.

How is the riding down there in Phuket? I have never riden to Phuket, but visited in my backpacking days. I know there is some kind of cycling scene as I think the Tour de Siam finishes there. Is it worth me planning a tour down there?

I'm sorry, I do not know of the price of rentals in Ao Nang ... as I happened to be riding my own bicycle. But judging by the amount of look-alike Trek mtn bikes about, it must have been quite inexpensive.
There is also a Thai cyclist there who runs guided mtn bike tours in the local area as well as small local group of keen cyclists who plan rides a couple of times a week.

I think the Krabi area is more suitable for cycling than Phuket - which I believe isn't really all that good ... very steep mountainous headlands between many major beaches and rather busy roads with many crazy farangs on motor bikes. I guess it's ok to cruise around the beaches & such. If you keep your eyes open you will see a regular bunch of local mtn bikers doing loops most afternoons in the Karon/Kata area.

I simply ended up in Phuket with my bicycle for a little r&r after doing some touring in Vietnam and Laos.

Sorry, I don't know about the accomodation where you mentioned ... I know Ranong but where in the hell is Khao Lak.

I've recently heard good things about Ko Phayam - one of the bigger islands about 35 km south of Ranong. Apparently the development is beginning right now and some locals are trying to restrict it .... go & see it before it's too late !

What do you reckon on the weather down there in Sept, not too hot for cycling?

I'm gonna give it a go in September. I think there is accommodation there, plenty of people must have done the route, I just can't find anyones link/blog to it.

Thanks anyway, I will give it a go.

Whilst I am on this thread, Thaicannasia has moved from Sukhumvit 3 to Sukhumvit 26. I haven't been to the new shop but will in September. Dunno if the old phone numbers work. I will ask someone to check.

and this:-

Wanting to get more serious? Fun and safe riding experience starts with the right equipment. There are abundant of great bicycle shops around Bangkok. Visit these shops for quality two-wheelers, biking gears and accessories as well as valuable advice from the pros.

Probike
Location: 237/2 Ratchadamri Rd, Lumpini, Pathumwan
Contact: +66 (0)2 253 3384 or 02 254 1077
Located in the northern part of Lumpini Park, Probike is one of the biggest importers of bicycles and bicycle accessories. You'll also find more information on biking events and routes here.

Saengthong
Location: 32/13 Pracharaj Rd, Amphoe Muang, Nonthaburi
Contact: +66 (0)2 525 1789 and +66 (0)2 526 4664
Although located out of town, Saengthong bike shop is frequented by both Thai and foreign tourists, and specializes in mountain bikes. Thai customers purchase them for biking along King Rama V Road and even on the motorway, while foreigners buy them for long and tough biking trips in Laos and Cambodia. The service offered is outstanding, while low prices do not necessarily mean inferior quality. Best overall reputation.

ThaiCannasia
Location: 71/3 Soi Nana Nua (Sukhumvit 3)
Contact: +66 (0)2 253 3454, +66 (0)1 332 8687, +66 (0)1 567 8886
The Cannondale Center (Thaicannasia), Bangkok is centrally located on Sukhumvit Soi 3, near Bamrungrad Hospital. We are the Exclusive Dealer for the full range of Cannondale Bikes, Clothing and Accessories as well as Mavic & ZIPP Wheels, Giro Helmets, the usual range of accessories and much more. It specializes and are involved in all aspects of the sport, from Road Racing to Triathlon, Duathlon, Mountain Bike Racing, even Adventure Racing, having just won the River Kwai Trophy Adventure Race, Masters! ThaiCannasia also specializes in setting up Touring Bikes for Touring South East Asia, and have Touring Bikes ready to roll out the door. Fluent English is spoken here. You can put your trust in its many years of experience.

Viwat Bike
Contact: +66 (0)2 552 8583 and +66 (0)2 972 3934
The shop, featuring a large variety of bicycles and accessories, is located near the Honda Bangkhen showroom and close to Yaek Lak Sii intersection. The staff is helpful and knowledgeable - call them anytime during office hours.

Word Bike
Location: Ram Inthra Road
Contact: +66 (0)2 946 4117 up to 9 and +66 (0)2 510 1041
Another large importer that offers a huge selection of bicycles and accessories, odd parts, and many bargains. Service is good.

Sahapatt Bicycle
Contact: +66 (0)2 447 0169 and +66 (0)2 879 4259
Moderate prices and helpful service.

Link is http://www.bangkok.com/cycling/recommended-bike-shops.html