The sound of hammering, followed closely by swearing. I spot Matt with a BMX bike in the stand, bashing a ratchet spanner with a mallet...
Me: "What are you doing?"
Matt: "Just changing a tube..."
No one can ride a mountain for you. Be prepared to feel so tired that you truly believe you cannot go on. Be ready to admit to fatigue and, yes, dejection. There is no such thing as an easy ride up a mountain.