Both 15 deg and 25 deg available. You will need Ascalon carbon extensions from Aerocoach, and these adapters are for the Shiv Tri Disc, not the UCI-legal Shiv Disc. $350+ shipping each on the Aerocoach website. $250 shipped in CONUS, I absorb PayPal fees.

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Amateur recreational hobbyist cyclist
https://www.strava.com/athletes/337152
https://vimeo.com/user11846099