... speedWheel size20"Frame size17"Frame materialAluminum alloyFront forkSuntour,Aluminum alloy,with suspensionRimsAluminum alloySpokesTyresKENDABrakesF:disc brak, R:V brakestemsteel, adjustableGripsXHSaddleKnusSeat postAluminum alloyPedalsvpChainKMcChain ... buyers only. Normal wear, accidents, neglect, abuse or improper handling with the bike/ e-bike will invalidate your warranty.FAQ1.Q ...