These are a first run of the kryptonics “raised letter” 70 mm skateboard wheels. They came off an old 70′s skateboard with first gen tracker trucks. Wheels are in amazing condition with no coning on wheels. Please refer to photos for better details. I removed one of the bearings to shoe inside hub. Comes with original 70′s bearings. Appears to a metal in wheel hub behind bearings. Most likely to help stabilize the softer wheel. If you have any questions or would like further photos, please feel free to send me a message. The Rear Vintage 1st Gen Kryptonics Skateboard Wheels with Raised Letters in Orange and Red, measuring 70mm, are a classic addition to any vintage skateboard collection. Made by the iconic brand Kryptonics in the United States, these wheels capture the retro aesthetic of 70s skateboarding culture. With their vibrant colors and unique raised letter design, these wheels are sure to add a touch of nostalgia to any skateboard setup.