Originally posted by gonesh9
And infact I did adjust the seat before we rode, which is really weighing on my conscience.
After reading this I would have to agree with a2psyklnut and say the 50/50 is more than fair for you. Even if the shock was in poor working order prior to the ride it ultimately failed due to the seat post coming in contact with it according to what a professional bike mechanic told you. This in my eyes would be your fault since you failed to make sure it was properly tightened. Although, if he is a good friend as you say, then he should understand that things like this can happen and just be happy that he has a good friend to help him split the cost. Hell, I lent a buddy my bike while at school to ride to class. He left it unlocked and it got stolen. All I got was a “sorry....”
A bike and its parts are replaceable, good friendships are not. Do what YOU feel will make things right.