Any tips for getting the right fit/size?

[Hotchilidamo]

So I've been out and about today trying different bikes and I'm not sure any work so far. The mediums feel like I'm hunched up a bit and the large seemed like I'm reaching too far.

I guess I've not found the right one yet but now I'm a little worried that I'm not really sure if I'll know when I find it. How can you tell if a bike fits you? Is it all instinct or are there some things I can look out for that will suggest a good fit? Any pointers you can offer?

 

[screenman]

You can make a small one larger, but it is hard to make a big one smaller. By that I mean changing stem, putting seat post up a bit. Where are you looking to buy from, what type of bike are you looking for and what type of cycling will you use it for.

 

[Hotchilidamo]

I'm planning on buying from one of two LBS. Both are reputable

The bike will be a flat bar road bike primarily for a commute but also for fitness/fun weekend rides. I do have a persistent shoulder/neck problem which is why I'm anxious to get the sizing right. I have an MTB that was bought for me and I've never felt comfortable riding it and I really don't want to make a mistake and experience discomfort.

 

[Sharky]

Starting with your current bike, make a note of all the measurements. Not the frame size, but the relative distances between the contact points.

- bottom bracket to top of saddle
- tip/back of saddle to the handle bars - at the centre and at the holding points on either side
- height of handle bars from the floor
- height of saddle from floor
- then you can calculate the difference between the handle bars and the saddle.

Then when you go into the LBS, take a wooden metre rule with you and measure all the bikes that are suggested to you.
Having a visible measuring stick will make the LBS man more inclined to talk through the sizing options and won't be able to flog you whatever he has in the shop. And it will also give you confidence that the new bike is not too dissimilar to the one you have or the change in size is in the direction you are aiming for.

If you can experiment with your old bike first, raising/lowering handle bars and saddle, it will give you an idea of what you are looking for.

Good luck,
Keith

 

[screenman]

If you could let us have a picture of you on the bike you own at the moment it would help.

Personally, if i was in doubt and was spending a few bob then I would invest in a bike fit, many shops offer them free when buying anew bike.