Schwalbe SV6 - 20 x 1 1/8'' - Presta - 40mm
Quality control for safer cycling: Each tube is checked twice at the factory to ensure safer cycling. Having the correct pressure means fewer punctures and reduced rolling resistance.
SV6 - 20 x 1 1/8'' - Presta
The Butyl rubber compound prevents pressure loss and fewer occassions to inflate.
Schwalbe SV3 - 16 x 1.75/2.50" - Presta - 40mm
16 x 1.75/2.50"
High Puncture Resistance.
Valve Cap and Lock Nut.
Long Life Air Retention.
Butyl is a very elastic and airtight synthetic rubber. But as with the tire, other fillers are necessary to make up the rubber compound.