20x1.50-1.75 Twitch Ultra Light TPU Presta Valve Inner Tube 20" Promax RMV rims feature a

Promax RMV rims feature a simplistic design focused on reducing weight

It will not be shipped

The hubs are black anodized alloy high flange sealed bearing with jelly bean cut-outs on the flanges and 3/8 axles front & rear

Uses replaceable batteries (included)

Spec’d with a mixture of WTP's own aftermarket BMX components and genuine MTB parts from Maxxis and Manitou

20x1.50-1.75 Twitch Ultra Light TPU Presta Valve Inner Tube 20" Promax RMV rims feature aTwitch Ultra Lightweight TPU tubes weigh 6070% less than standard butyl tubes. Less weight at the wheel means faster acceleration and better performanceperfect for racers and serious BMXers. TPU's smooth surface reduces friction, so your bike rolls faster and more efficiently than with butyl tubes. This tube folds down to pocket size making it ideal as a spare tube to carry on the trail or track. The material also resists cuts and pinch flats better