This is from a reply to a email I sent them.
Hello Jeff,
Thank you for contacting us.
The maximum rider weight for this bike is 250 pounds. To purchase parts, you will need to contact us. We try our best to keep parts in stock. The warranty is 1 year on most parts after proof of purchase, the wearable parts have a 30 day after proof of purchase warranty and the frame will have a 5 year warranty.
Kind regards,
Amber