Laggan – it’s 26 1/2 miles from Aviemore, so no where near an hour.
I can ride up the fire road in 12mins, then do the ‘old’ Red. You can go back up and do the harder climb beyond the start of the ‘old’ red then do the newer red, bit like spooky wood. At points it’s so narrow it feels natural.
I did Golspie, best built route in Scotland, last week. Amazing route. 7km descent. We did Balblair Black, for the first time, the next day. What an epic route ! lovely slab and rocky sections, nothing ever too hard. Short but very steep climbs. I did it on a hire Hardtail so a bit painful.
Golspie and Balblair are quite far from Aviemore but you will probably never up there unless you take the time.