Data: catalog/availability.json (historical file). That file has every seller, URL and stock note for each part.
In stock = at least one seller shows it in stock or orderable now. Unit counts are rarely shown. Lead time is the upper bound a seller states; '?' means not stated.
60 V = the manufacturer's stated max voltage is at least 60 V (full FLEXVOLT). '?' = no max voltage stated. EUR converted at 1.1193.
Leg actuators
id
in stock
lead (days)
60 V
cheapest source not marked backorder/sold out (see JSON for stock text)
RobStride (RS-02/03/04/06) are the only leg actuators rated to 60 V, with a stated range of 15/24-60 V. That leaves zero margin at full charge, and regen can push the bus past 60 V, so a bus clamp or brake resistor is needed. Seeed lists them 'In stock' from its China warehouse with no count or lead time. rcdrone.top's cart accepted 150 RS-03, 78 RS-04 and 76 RS-06. Amazon is unavailable; roboticscenter.ai is backordered, 4-6 weeks.
Damiao J-series are capped at 52 V; the exception is the J10010L at 58 V, which covers 45-58 V in use but not 60 V at full charge. All are in stock at roboticscenter.ai (US), 1-3 weeks.
CubeMars AK series are capped at 52 V (AKA manual V3.0.0). RobotShop US has the AK70-10, AK80-9 V3 and AK80-8 in stock. The AK80-64 and AK10-9 V3 are backordered at RobotShop US and EU.
Unitree GO-M8010-6 is the easiest to buy (official US store, ready to ship, $369) but runs at 12-30 V, so it is unusable on this pack.
Wheels: the BotWheel is orderable only as a $269 2-pack, and its max voltage is not stated (speed is quoted at 24 V). UUmotor 6.5 in and 8 in 48 V hub servos have large stock counts (71-967) at $145-165, but none states a max voltage, so 60 V is unconfirmed.
Drivers: only the Flipsky 75100 (single $65 or dual $172, 14-84 V) is in stock and rated for 60 V. The ODrive Pro is in stock but maxes at 58 V; the ODrive S1 is sold out and maxes at 50.5 V.
Blocked during checking: RobotShop search, Foxtech, AliExpress (captcha or empty store page) and some rcdrone/aifitlab quantity checks.