Check the listing for details. Formula - Spring/Coil for Selva C Super Firm SB40241-00 Red version - NEW. Color: Red, Condition: New. Listed at 59.95 USD. The pictures, the description and the technical specifications shown in the shop described the components that you will purchase We ship WorldWide Official dealer Coil/Spring Formula for Selva C fork Super Firm (Red version) - NEW Product code: SB40241-00 Tips for choosing the spring Muscle MTB Athlete weight less than 55 kg -> Super Soft spring (Yellow) Athlete weight from 55 – 65 kg -> Soft spring (Green) Athlete weight from 65 – 75 kg -> Medium spring (Blue) Athlete weight from 75 – 85 kg -> Firm spring (Black) Athlete weight over 85 kg -> Super Firm spring (Red) E-Bike, Pedal-assisted Athlete weight less than 45 kg -> Super Soft spring (Yellow) Athlete weight from 45 – 55 kg -> Soft spring (Green) Athlete weight from 55 – 65 kg -> Medium spring (Blue) Athlete weight from 65 – 75 kg -> Firm spring (Black) Athlete weight over 75 kg -> Super Firm spring (Red) Never used and came in original Formula package (plastic bag) We SHIP via registered mail, delivery time is about 10 working days To South and Central America, Russian Federation the delivery time could be 20-30 working days or more Visit out store: https://stores.ebay.it/kw570