BikeMaster TR6 Inner Tubes Size:70/100-21 Also a great option for

Also a great option for the Ultra Bee for those looking for a light weight all around trail tire

but none of them have got it quite right

No dust to clog valve cores

Customization Ready: While the grip is not included

If you want to retain traction control be sure to purchase Warp9

BikeMaster TR6 Inner Tubes Size:70/100-21 Also a great option forDurable and reliable, BikeMaster Natural Rubber Inner Tubes with TR6 valve stems are built for motocross and off road riders who demand long lasting performance. Made with a high quality natural rubber compound, each tube features seamless construction and increased wall thickness to reduce the risk of pinch flats and puncturesperfect for aggressive trail or track use. Natural rubber compound for flexibility and strength Reinforced TR6 valve stems