The HyperCore (commonly abbreviated to “HC”) is a motor built by Future Motion. There are many iterations of the HyperCore which all have their own pros and or cons.
The HyperCore from the V1 OneWheel was a marvel of OneWheel technology at its time. This TransAxial BLDC motor provides smooth sensor transitions and good torque but unfortunately does not play well with the FOC control we use in VESC, but it is possible to get some functionality from it if you are that determined.
This happens to be the community favorite HyperCore due to the fact that the most popular platform to upgrade from is the XR+, followed closely in second by the Plus. This model of Hypercore has venting holes in the axle to help cool the motor but can still have heat issues due to its small thermal mass and low copper infill. This model of HyperCore however offers the most amount of aftermarket accessories ranging from life savers to even different sized rims!
These HyperCores are gaining popularity due to the aftermarket scene being targeted towards the GT. The stators from the Pint, PintX, and GT are all nearly identical offering similar specs to the prior generation of HyperCores, but tend to be slightly more efficient. The Pint Hubs on the other hand tend to be narrower than previous Hypercores which can cause your tire to be more rounded. Some people enjoy this “nimble” or “carvy” feeling, but others do not. The GT hub on the other hand doesn’t fair much better. While it may not be as narrow as the Pint hubs, it unfortunately has its own failure. The 6.5’ hub size handicaps your tire options greatly leaving much to be desired, this is why aftermarket 6’ and 5’ hubs have been gaining traction in the community.
All the HyperCores weigh around 12.4-13.6 pounds. The only way to get the HyperCore is to buy it second-hand or harvest it from a donor board.