Kenda Brand 70/100-19 Inner Tube (2.50/2.75-19) 669-18.2-30 start all mounting bolts by

start all mounting bolts by hand before final tightening

Ditch the bulky plastic headset and achieve a clean

Displacement

and a smooth ride on pavement

Kenda Brand 70/100-19 Inner Tube (2.50/2.75-19) 669-18.2-30 start all mounting bolts byKenda Brand "Tuff Tube" is a heavy duty inner tube that fits tire sizes 70 100 19, 2. 50 19 and 2. 75 19 with a Straight Valve Stem. This is a replacement tube for Surron Light Bee and Niu XQi models, among other popular emoto models. Features: Heavy Duty: made of 2. 5mm heavy duty butyl rubber and is designed to resist punctures and pinch flats, being two times thicker than standard OEM tubes. Valve Stem: Equipped with a TR 6 straight metal valve