Mount for Cervelo P3 (Mk1) Style:For Garmin Varia RCT715 - 1 x 20mm M3

- 1 x 20mm M3 socket head cap bolt (to attach mount to saddle)

9mm specifically for the Cervélo S5 MY23 - 25

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lightweight (~20 grams) and won't move around like rubber bands or zip ties will

Mount for Cervelo P3 (Mk1) Style:For Garmin Varia RCT715 - 1 x 20mm M33D printed seat post mount perfectly dimensioned for the Cervelo P3 (Mk1 only). Note that the Cervelo P3 has 2 versions. This mount is only compatible with the Mk1 version of this frameset. You can find the the Mk2 version here. If you are unsure which version you have, please check the following product pages on the Cervelo website as a reference: Cervelo P3 Mk2 Cervelo P3 Mk1 Manufactured in Australia from Carbon Nylon for strength, durability and