with different frame sizes, seatpost lengths & tube angles, surely you'd need to constantly re-adjust the seat position anyway?
a good idea in theory but if it was viable & safe i'm sure they would be commonplace.
as for the lock, isn't that just asking for someone to bend your spokes when they try and nick the bike?
a good idea in theory but if it was viable & safe i'm sure they would be commonplace.
as for the lock, isn't that just asking for someone to bend your spokes when they try and nick the bike?