Originally posted by Pip in a Poke
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Originally posted by Pip in a Poke View PostWhat were you riding? A penny farthing?
Standard 1970's geometry. 72 parallel. 27 inch wheels, 1 1/4 inch high pressure(!!) tyres.
Actually, the frame was that old when I got it, it was probably from the 1960s.
[mansplaining] I just realised what you might have meant. Not a penny farthing 67 inch gear. 48 tooth chainwheel, 19 tooth rear sprocket. Although it was a single gear, the sprocket was free, not fixed (actually, that comes out at 68 inch, I must have misremembered over the intervening 35+ years...)[/mansplaining]Last edited by RetSet; 11 April 2017, 19:24.Comment
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Originally posted by RetSet View Post
[mansplaining] I just realised what you might have meant. Not a penny farthing 67 inch gear. 48 tooth chainwheel, 19 tooth rear sprocket. Although it was a single gear, the sprocket was free, not fixed (actually, that comes out at 68 inch, I must have misremembered over the intervening 35+ years...)[/mansplaining]Comment
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Originally posted by Pip in a Poke View PostSo, the 67 inches I took to be the size of the wheel (hence penny farthing) is the product of the number of teeth on your chain ring and your rear cog?
Incidentally I have a certificate upstairs to the effect that I rode the Coddington Flyer, a genuine penny farthing, in the mid 50s. Since I would have been in junior school, I have no idea (or recollection) how I achieved that feat!Blog? What blog...?Comment
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Originally posted by Pip in a Poke View PostSo, the 67 inches I took to be the size of the wheel (hence penny farthing) is the product of the number of teeth on your chain ring and your rear cog?
Thus (48/19)*27 = 68
Way too high for the ride in question. But I did itComment
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