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Hi I am selling a bmx bike and have been asked the top tube length, how do I measure this.
A) centre of head tube to centre of seat tube along the TT.
B) centre of head tube to centre of seat tube along a straight line.
Posted : 21/09/2009 4:56 pm
A) c-c
AND
B) on the horizontal - should avoid any questions
Posted : 21/09/2009 6:18 pm