Frame size advice

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Primal Scream

Get your rocks off
Your help please, I am browsing e bay with the intention of bidding for a 70/80 road bike, problem is i dont know if they will be the right size.

I am a shorty 5-7 and 30 inch inside leg. please advise frame size in imperial and metric.

Thank you.
 

Dave 123

Legendary Member
I'm about 5'8" with a paltry 28/29 inside leg
My bike is a 54cm frame
Miixing me metaphors....
 

brockers

Senior Member
And I'm 5'7'' with a 30'' inside leg (trouser size). Crotch to floor is 80cm, and the distance between the dip in my saddles and the bottom bracket axle is 70.5cm along the seat-tube. I have two 53s and a 52. (54cm top tubes)
 

Nebulous

Guru
Location
Aberdeen
There doesn't appear to be so many old bikes in small / medium sizes. I'm a smidgen over 5'9" with a 30.5" inside leg and seem to remember riding a 21" frame. After a near 30 year gap I'm back riding a 54cm modern bike, which fits fine. I kind of hanker after an old racer - as something to go around town and not be afraid to leave locked up, but they very rarely come up in that size. I also seem to remember 1.5" increments so the next size up from 21" would be 22.5", which is quite a jump.
 

cyberknight

As long as I breathe, I attack.
I am 5 foot 7" with a 30.5 inside leg and ride 52/53s with a 54 cm top tube.When i was young i rode an early 90s road bike which was a 21 " frame.
 

Tim Hall

Guest
Location
Crawley
I was talking to a nice man at Bob Jackson (makers of lovely frames) on Friday. His advice was to stand with stockinged feet about 8 inches apart. Measure floor to crotch (just behind yer bits). subtract 10 inches. That should give you about 1 inch standover height. For their track frames, subtract 11 inches, as they have a higher BB.
 

MontyVeda

a short-tempered ill-controlled small-minded troll
there's an easy way the work out which size frame is right for you... measure the distance between the end of your little finger and the end of your thumb at their widest... multiply by the number of wheels on your bike, then add one inch per rider, and hey presto, you have the ideal frame size for your body!
 

Cubist

Still wavin'
Location
Ovver 'thill
there's an easy way the work out which size frame is right for you... measure the distance between the end of your little finger and the end of your thumb at their widest... multiply by the number of wheels on your bike, then add one inch per rider, and hey presto, you have the ideal frame size for your body!
You stupid boy.......
p008578h_196_110.jpg
 
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