Specialized Gravel Bike - Convert 90's Mountain Bike to Gravel Bike

In this one, I convert a 1990's Specialized Stumpjumper mountain bike into a modern gravel bike, complete with drop bars, disc brakes and tubeless tires. I do it right and I make it modern. You can do it too! The end result is a beautiful bike that I can ride anywhere I'd like to go. And I've saved another 90's MTB from the landfill.

Parts list (configuration as shown at the end of the video):
Frame: 1998 Specialized Stumpjumper, Size 18", 22" top-tube length
Fork: Raleigh Redux, Aluminum, 1 1/8" steerer, fits 27.5x2.5" wheel & tire combo
Wheels: DT Swiss E1800, Centerlock disc, Quick release, 135mm hub width
Tires: WTB Crossboss 700c x 35mm, Tubeless, with MucOff sealant
Handlebars: Zipp Service Course 70 XPLR, 42mm width
Stem: Satori Stealth 6, 90mm, 7-deg rise
Seatpost: EC90, cabon, 30.9mm x 400mm
Seat: Oval Concepts 500-series (it came off my Fuji Cross)
Levers: Shimano Sora R3000 2x9 speed
Crankset: IXF 9-speed, triple with inner ring removed to make it a double, 44/32
Bottom Bracket: Shimano BBR-60 with center tube omitted
Front Derailleur: Shimano SLX M661 (triple)
Rear Derailleur: Shimano Sora R3000 GS (later uprgraded to 105-5700 medium cage)
Chain: KMC 9-speed
Brake Calipers: TRP Spyre (Road)
Brake Rotors: Shimano Deore SM-RT54, 160mm
Cables: Jagwire sport, Universal Road kit