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When used on Presta drilled rims (valve hole diameter: 6.5mm), the rubber valve base ensures a perfect air-tightness simply tightening the valve on the rim (with its nut), without any additional adapter. When used on Presta drilled with a wider (> 6.5mm) inside hole, or when used on Schrader drilled rims (valve hole diameter: 8.5mm), Effetto recommend fitting the conic adapter on the valve before inserting it into the rim. Use the metal washer on the outside of the rim, before tightening the valve nut.
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We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.