Inner Tube 26 x 1.9/2.4 Schrader Valve model version_Ultra Duo Step-Thru 2 while the siped transition knobs

while the siped transition knobs and shoulder blocks provide exceptional grip in diverse trail conditions

engineered specifically for the demands of high-torque mid-drive electric bikes

combined with a Continuously Variable Transmission (CVT)

this shifter ensures smooth and reliable shifting performance

innovation

Inner Tube 26 x 1.9/2.4 Schrader Valve model version_Ultra Duo Step-Thru 2 while the siped transition knobsDont let a flat tire ruin your ride! Keep this replacement inner tube handy to get you back on the road. Made of high quality rubber, this fat tire inner tube uses a Schrader valve stem and will fit all Biktrix eBikes with wheel sizes of 26x1. 9 to 26x2. 4.