Hi, My son has an Urban Mover UM10 which has a bent pedal axle. We have contacted the bike shop where he bought the bike but he stated he is not interested in looking at the bike because he is too busy assembling new bikes. I was intending to repair it myself but it appears a special spanner is required to get the internal collar undone because it has what appears to be internal cerations that I can't seen to undo using a punch and hammer. Any assistance would be appreciated on how to get the axle out and to purchase a new one. Thanks, Jeff Gill