That should make them easier to stay on. There's more parts to hold onto! Including the spiky parts.

[If he thinks about it like that, then it'll be easier than riding a horse. He does a quick assessment of the mount and the saddle before hopping onto his, shifting around in an attempt to mimic how the jockeys out on the field were sitting on their mounts.]

Huh, it's not too bad. Just...different.