Anybody know?

[mountainsport]

I think he deliberately left it out because it's only around 5aH. That battery box looks too small for any more than two 5aH 6S packs - which means 5aH at approx 48v (44.4v nominal).

I think it's clever how he's made the battery enclosure, but there's nothing special about the rest of the build. He's advertised a load of these bikes over recent months. Always the photos are a bit fuzzy, so it's not easy to see the quality of his builds, but I've seen the motor wires exiting upwards and I've never seen any torque arms.
48v in Sporting Goods | eBay

Yes d8veh,but did you know that fuzzy glasses also come with the bike,so you'll never know what the bike truly looks like.

Mountainsport.