Tubolight EVO Gravel Tyre Liner Fe Sport Holding function is included on

Holding function is included on sizes 3 to 8 of the Hexs keys

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reduce friction and improve the performance of moving parts

12-speed semi-wireless Di2 platform

Tubolight EVO Gravel Tyre Liner Fe Sport Holding function is included onThe new shape takes inspiration from the mtb versions, with fewer portion of the insert in contact with the tire, and a taller profile to increase smoothness on straights. Designed around 37c to 45c tires and internal rim width from 19mm to 25mm. The compound is harder, to match typical inflations of gravel setups. 2x tire inserts (1 pair). Mfr Claimed Weight 33g