Rambo
Member
I have a 1970's road bike with 27" wheels.
Newer bikes have the 700c wheels.
I understand that 27" wheels are 630mm tall and 700c wheels are 622mm tall.
If in fact the newer 700c wheels are 8mm shorter than the old 27" wheels - My question is: If the 27" wheels are slightly taller, then WHY are 700c wheels often refered to as 29" wheels??
Newer bikes have the 700c wheels.
I understand that 27" wheels are 630mm tall and 700c wheels are 622mm tall.
If in fact the newer 700c wheels are 8mm shorter than the old 27" wheels - My question is: If the 27" wheels are slightly taller, then WHY are 700c wheels often refered to as 29" wheels??