Crank spacing
 

Hi All

Having purchased a new road bike I noticed things didn't feel quite right. To get to the point the cranks are not in the centre of the bike. The non drive side is a few millimetres further away from the downtube than the drive side, this means that the pedals are not equal distance from the downtube. i have spoken to the bike shop and await their reply. They were trying to think of reasons why this should be but i cant think of any. You wouldn't offset your seat / bars, wheels etc. So surely they should be central. Any answers?
Liam

No answer, but I've measured all 3 of my bikes and have found the same thing....

It's rare for crankarms to measure perfectly centered. I've seen a listing of Shimano Q-factors that shows some to be deliberately off-center. A 2mm difference in the distance from DT to crankarm is only 1mm off center. When you're measuring 170mm from the BB center, a very small angular error is greatly amplified. This is entirely normal.