The restriction on Snowdon is no cycling between 10am and 5pm on all the bridleways that lead to/from the summit. Pushing is fine.
If you’re going to go early, then start in Llanberis and push/ride alongside the railway, descend Rangers to the BW that leads back over Bwlch Maesgwm, then descend Telegraph Valley back to Llanberis. As long as you are off the Rangers and on to the Maesgwm BW by 10, then you are off restricted trails. If we’re guiding, we usually leave Llanberis at 6, summit about 8.15 and start the descent about 8.30. Leave the Rangers by about 9, by which time, there will be a few walkers coming up unless the weather’s awful.
If you’d rather do evening, then start at the Ranger car park at whatever time you like, climb up to the Maesgwm BW and then over Bwlch Maesgwm and down Telegraph Valley to Llanberis at whatever time you like – none is affected by the restriction. Start pushing up from Llanberis (ideally around 5 but 4’s unlikely to be an issue). Hit the summit about 7 and descend in your own time all the way back the Ranger 🙂
In my opinion, morning’s best.
If you need any other info, email me mtbguiding@gmail.com