“It’s very bumpy now through Eau Rouge,” said Hamilton after Friday’s practice at the circuit. “Something’s happened and they’ve kind of ruined it a little bit.
“I don’t know if they got a new patch there, but there’s a massive bump right at the compression point, which we’ve never had there before. It’s really sharp, you feel it on the backside.
“But I’m sure they’ll fix it. I think it’s something to do the mudslides, the rain or something like that.”
Mercedes experimented with different downforce levels on their cars during today’s practice. Hamilton languished in 18th place in the morning session, but ended the afternoon within a tenth of a second of pace-setter Max Verstappen.
“It’s a massively challenging circuit,” he said. “Trying to find that balance this morning we had it one way, we changed it this afternoon. It’s very similar: You go faster in the first and third sector but you go slower in the middle or you go quicker in the middle and slower in the other two. So trying to find that balance is quite tricky.”
Hamilton said he was grateful for an opportunity for some dry running in a weekend which is forecast to get progressively wetter.
“It’s been an okay day. The sessions are very short, so there’s not a lot of knowledge you’re gaining from the short time that you have. We’re trying to navigate the best way we can.
“At least it was dry for [second practice] so we’ve got some laps in. But the car wasn’t underneath me today so I’ve got to do some work tonight and try and figure that out.”
Advert | Become a RaceFans supporter and
2021 Belgian Grand Prix
- Spa spectators who saw no racing offered prize draw for 2022 tickets
- Honda reveal details of Verstappen’s Spa power unit upgrade
- Ocon congratulated by past French F1 aces after breakthrough win
- ‘Wrong to award points for a couple of laps behind the Safety Car’ – Horner
- Hamilton offers “exclusive gift” to fans who attended Belgian GP wash-out