Suggested Retail:$80. USED. MISSING SEAT AND DENT IN WHEEL Huffy Boys Green Machine 20 in Triwheel Bike. You'll be the envy of all the kids in the neighborhood when you're riding on the Huffy Boys’ Green Machine 20 in Triwheel Bike. This bike features a durable steel frame to withstand everyday wear and tear, while the pneumatic front tire and extra-wide, super-slick rear tires with pivoting capabilities let you perform awesome spins and slides. With a trigger hand brake and dual-stick steering, this bike gives you complete control.. 7 DAY FULL REFUND GUARANTEE ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. PAID DELIVERY AND 7 DAY ALTERNATE PICK-UP ALSO AVAILABLE. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.