Motorcycle jackets are supposed to have longer sleeves. The sleeves sound about right based on your description. Are the sleeves long when your arms are down, or in a raised position? When the arms are raised (like they would be when on a bike) the sleeves should come to the wrist.Not sure if this is the section of the forum i'm suppose to post about this.
I'm about to buy the alpinestar smk jacket. I tried on a size 38u.s. and it fits pretty well. However, the sleeves are just slightly too long. The wrist cuffs go all the way to about half way up my hand. I will try one size jacket smaller to see if it is anybetter, but I might not also fit the chest size.
Do you guys take your jackets to a shop to get it "fixed" to custom size ?