You can tighten it up with C spanner in toolkit - I think the idea is to tighten if you are a heavy ******, or loosen if you are a light weight.... I adjusted mine up 1 notch, but the C spanner is made of Yamaha-monkey-metal (AKA cheese) & the handle is so short I couldn't get enough leverage to go to maximum stiffness without breaking my hands/skinning my knuckles..... Still, it seems a reasonable compromise for B road commuting.