Dat hill.
Lol rep.
I assumed it was the hill that was partially responsible for you managing to go down it so fast on a heavy bike.
Nah, it was nowhere near the hill, the route is through Raynes Park on Kingston Road to Kingston, Hampton Court then Walton, so fairly flat enough to maintain a higher average speed.
The front half of the bike is heavier too.
@Khornight2 started
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Dat hill.