Diameter:13mm
Length:8mm  
Diameter of shaft:1.5mm
Length of shaft:4mm
Weight:2.3g(including motor mount and wires)

KV: 8500     Max current: 2A    instant (10S):2.5A
Idle current:0.2A/3.5V
Pack work with：1S
Recommended prop:2508

2508 prop          3.0V/1.5A/17g of thrust  3.5V/1.7A/19g of thrust   3.7V/1.8A/22g of thrust  efficiency：3.2g/W