Schwalbe Aerothan MTB Inner tube 27.5x2.10-2.40 Presta 72g CheckoutSpec= Addix The number and letter refer

The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth:

from heel to cuff - expect them to cover the leg to just below the knee

gearing refers to how hard your child has to pedal

Sidecut: 43-44-44

Angled waffle pattern with oversized top rib that matches finger articulation points for improved control and more ergonomic feel

Schwalbe Aerothan MTB Inner tube 27.5x2.10-2.40 Presta 72g CheckoutSpec= Addix The number and letter referSchwalbe Aerothan Tube 27. 5 x 2. 1 2. 4 40mm Presta Valve. Developed in cooperation with BASF and with experts from the German plastic manufacturing industry the Aerothan tube emerged to not only meet all the requirements of a high end bicycle tube but to exceed them. Fully light weight right to the valve about 40% less weight than a comparable Schwalbe extra light tube Puncture protection newly defined the material itself prevents sudden air loss