The bike is being auctioned off at 32.auctions.com - the fund raising target was $5,000 (£3846) but the sale figure has already reached $7,500 (£5770), via 25 bids, at time of writing. Bids end at 5pm on August 13.
The 2018 Cannondale SuperSix EVO bike looks to be in perfect condition, save for a little Roubaix dust, and Craddock's scrawl.
Craddock captured hearts throughout cycling's following when he promised to donate $100 for every Tour de France stage he completed to the rebuilding of the Houston velodrome, which was partly destroyed by Hurricane Harvey last year.
The EF Education-First Drapac rider asked his Instagram followers to match the amount, to help the Alkek velodrome to continue to raise and support local cyclists.
The challenge grew greater when Craddock crashed on the first day of the Tour, fracturing the top of his shoulder blade and resulting in "three weeks of pain".
The 26-year-old continued to ride through extreme discomfort, raising over $195,000 through his efforts. He finished as the 'lanterne rouge', but told Cycling Weekly: “I started the Tour in tears of sadness when I crashed the first day, but now it’s pure joy.”
Dropel Sports set up the fundraising page, and it promises "all proceeds from this auction will go directly towards the Alkek Velodrome campaign, which is where Lawson first got into cycling."
It added: "Please help... rebuild the track and support the next generation of cycling! Everything and anything helps and is greatly appreciated."
Fundraising is not new to the team. Slipstream Sports - which owns the Cannondale-Drapac squad - is crowdfunding to raise money to support it through the 2019 season, after a major sponsor pulled out.
The #SaveArgyle fundeaiser has so far raised $566,620 of its $2 million target - which represents 28 per cent. All donations, up to $2 million will be matched by Fairly Group and other generous supporters, and donations will be refunded if the team does not continue in 2018.
Thank you for reading 20 articles this month* Join now for unlimited access
Enjoy your first month for just £1 / $1 / €1
*Read 5 free articles per month without a subscription
Join now for unlimited access
Try first month for just £1 / $1 / €1