[alistairSH]

Changing the balance point of the bike.

Older geometry frames tended to pop the front wheel, if the rider remained seated and wasn't using bar ends (or just leaning really far forward).

Modern frames are longer overall, with wider bars, so the balance point feels longer and it's easier to remain seated without lifting the front wheel.

Seated climbing is better when possible - the rear suspension can help provide traction, rider just needs to provide the engine.