ENVE SILCA Valve Extenders 45mm
The ENVE SILCA Valve Extenders 45mm are for tubular tires and tubes with removable valve cores. The 45mm set is optimized for the ENVE SES 4.5 and SES 5.6 Disc. The 34mm set is best suited for the SES 3.4 and SES 3.4 Disc. If you have the SES 7.8 or SES 7.8 Disc you will need the 75mm set. ENVE recommends that the length of your tire/tube valve and the length of your extender exceeds the depth of the rim by at least 10mm.