This one is for the kids!

Ever wanted your bicycle to sound like a motorcycle? Well, now's your chance!

Printed on a Wanhao Duplicator i3, with the following settings:

• Plastic: PLA
• Infill: 20 %
• Layer height: 1 mm
• Bed temperature: 65 °C
• Print temperature: 215 °C
• No supports

You will need:

• Old gift card
• Cable ties
• Standard water bottle

Instructions:

• Cut the end of the bottle off to create an opening. Paint the bottle to give it some more authenticity. 
• Cut the gift card in half, or until it makes good contact with the spokes while in the exhaust manifold (the thing you printed). 
• Assemble the exhaust by screwing on the bottle, and sliding the gift card in to the designated slot. 
• Attach it to the back wheel frame with the cable ties and ensure it is tightly secured.

It may not be a real motorcycle, but at least you'll get some serious street cred.