Road Bike Sizes

[TallTony]

I have decided to buy a cheap road bike for training during the week, keeping the mountain bike for the weekend. It will probably be a ebay 'bargain'. Does anyone have any hints for working out what size I would be (online resources etc)?

I don't want to waste the time of my LBS by getting them to size me up and then making no purchase (they are a good shop, rare these days it seems).

Thanks, Tony

[mat205125]

Tried Google?

http://www.cobr.co.uk/e-cobr_information/t_and_r_s...

http://cyclinginfo.co.uk/blog/bikes/road-bike-fram...

As a ball park, how tall are you, and what is your inside leg?

How much are you planning to spend.

[spenny_b]

May still be worth popping into the LBS - you never know what they may have stashed out the back in terms of old stock? (agree with principles of not wasting their time though )

[TallTony]

mat205125 said:

Tried Google?

http://www.cobr.co.uk/e-cobr_information/t_and_r_s...

http://cyclinginfo.co.uk/blog/bikes/road-bike-fram...

As a ball park, how tall are you, and what is your inside leg?

How much are you planning to spend.

Thanks for those links, very helpful.

I'm 6'2" and don't know my inside leg, shall measure later.

Price was I was thinking around £200-250 on a secondhand bike, basically because I could prob easily resell it at that level. If I get into it and it helps my training then I'll get something nice on the Cyclescheme when I've paid off the Specialised FSR.

[mat205125]

TallTony said:

don't know my inside leg

How do you buy jeans?

[jacobyte]

A 6'2" person would generally start by trying a 58 or 60 frame and then move up or down depending on leg/reach measurements.

It also depends on the bike manufacturer, as the geometry is always slightly different, so a 58 on one might not be a 58 on another.

ETA: I'm 6'1" and have both a 58 and a 56 with different geometries.

Edited by jacobyte on Thursday 24th July 18:33

[gbbird]

I am interested in this too. I am quite short and I ride 15 or 15.5 inch MB frames, so what would that equate to on a road bike?

g

[fergus]

gbbird said:

I am quite short and I ride 15 or 15.5 inch MB frames, so what would that equate to on a road bike?

a children's bike?

(sorry, couldn't resist)

[DRB]

I'm also 6'2" and ride 58cm and 56cm road bikes, 58cm preferably. You could probably get away with riding anything 54-60cm if it was a really good deal and you just wanted to get a feel for it, wouldn't recommend it long term though.

gbbird said:

I am interested in this too. I am quite short and I ride 15 or 15.5 inch MB frames, so what would that equate to on a road bike?

g

Roughly 48-50cm.

[Bibs_LEF]

There are lots of factors to consider but I think inside leg x 0.66 is a good start point for frame size.