It does make a big difference (maybe not once size off but two sizes will), but if they are second hand why not try them and resell if they don't feel good to you?
The problem with going too long in the cranks is that you may not have the hip flexibility for a smooth pedal stroke.
Cheers all. Resell is always an option so I may take a punt. I'm reasonably flexible and maybe the increased range of motion would be good training for my indoor rowing, who knows?? Do love a bargain.
It does make a big difference (maybe not once size off but two sizes will), but if they are second hand why not try them and resell if they don't feel good to you?
The problem with going too long in the cranks is that you may not have the hip flexibility for a smooth pedal stroke.