Questions & Answers about Han cyklade varvet så snabbt som möjligt.
How exactly does the så ... som möjligt structure work in this sentence?
Why is it snabbt with a 't' at the end instead of just snabb?
Because it is acting as an adverb describing how he cycled, rather than an adjective describing a noun. Just like adding '-ly' in English (quick vs. quickly), Swedish usually adds a -t to the adjective to make it an adverb.
Why does möjligt also end with a 't' here?
In this expression, the word for 'possible' takes the neuter/adverbial -t ending, becoming möjligt, whenever you are modifying a verb (like cycling quickly). It reflects the adverbial nature of the whole phrase.
What kind of word is varvet in this context?
Varvet is the definite form of the ett-word ett varv. In a sports or racing context like this, it translates to 'the lap' or 'the round' around a track.