3D parts galore on Unbound Gravel bike of Adne Koster (11th in 200mi pro race)

Adne Koster is a Dutch cyclist who this year is contesting at the front of the big gravel races. He was fifth at The Traka 360, eighth at Gravel Locos and 11th at Unbound Gravel 200. His bike has four pieces 3D printed by his friend David Boleij. I talked to him about these pieces and other equipment on his bike, including a Shimano 105 Di2 rear derailleur. And, yes, of course we talked tires... https://www.instagram.com/adne_koster/?hl=en Race photos courtesy Leslie Kehmeier. Want to see what I'm testing and where? Follow me on Strava: https://www.strava.com/athletes/ben-delaney or on Instagram: https://www.instagram.com/ben_delaney -- The Ride is supported in 2025 by: Castelli clothing: https://www.castelli-cycling.com/US/en/ HOVERAir autonomous drones: https://hoverair.com/ Perc coffee: https://tinyurl.com/fjr7nurr (save 15% with code 'ride15') Saris racks: https://saris.com/collections/racks# (save 15% with code 'ben15') Silca maintenance: https://bit.ly/47xxvzj (save 10% with code 'theridewithben10') BikeTiresDirect: https://tinyurl.com/yc7vxujh (save 10% with code 'THERIDE') The Cyclist Lawyer: https://www.thecyclist-lawyer.com/ Shimano shoes & glasses: http://tinyurl.com/ye274tep Feedback Sports stands & tools: https://bit.ly/3S9Dq8r