ARISUN - 20 X 4 BIG SMOOTHY BICYCLE TIRE Inflator includes an inflation needle

Inflator includes an inflation needle

6061 Double-Butted Aluminum Alloy with Internal Battery WEIGHT

3 layers are meticulously constructed for maximum functionality

and BG 86 C-E

and not easy to rust

ARISUN - 20 X 4 BIG SMOOTHY BICYCLE TIRE Inflator includes an inflation needleProduct Details Inverted continuous center tread is formed by dimpled diamond design with narrow grooves between blocks to decrease rolling resistance and provide a smooth ride over hard surfaces Diamond pattern becomes progressively larger and more aggressive as it approaches the sidewall Larger side knobs produce better grip and traction when riding thru gravel, dirt, and snow