As the name suggests, i’m from/living in Scunthorpe.
45 minutes to the peaks is optimpistic, i got to Cut Gate last Sunday in an hour. You could easily get to Wharncliffe in 45 minutes though.
Other than that theres not a great deal. I’ve not been to Lee Quarry, but as it’s quite close to Leeds i wouldn’t imagine you’d be driving for more than 1:30hr max.
Market Rasen is members only, but from what i’ve heard it’s not worth the trip. I only live 30mins away and i’ve never bothered. A wall ride, some planks of wood and some flat ‘downhill’, no ta.
You could get a days riding round here but you’d have to know where you were going and 50% of it would be road.
In short, i drive out to the Peaks every week. I’ve not found anything else worth driving to in under 2 hours.