Right I need a 70mm stem for my commuter bike. It's going to be a Thomson item and it needs to be oversized. The bike is an Inbred with 700c wheels, full mudguards and a pannier rack so it isn't going anywhere new the muddy stuff. It's also got carbon bars and seatpost.
Here's my query that I'd appreciate peoples opinions on. Will an X2 stem work better with the carbon bars to reduce road buzz or should I just fit an X4 and accept the 12g weight penalty?