Caution Human Engine bicycle warning sign tank top cycling graphic
Caution Human Engine bicycle warning sign tank top cycling graphic - view 2
Caution Human Engine bicycle warning sign tank top cycling graphic - view 3
Caution Human Engine bicycle warning sign tank top cycling graphic - view 4
Caution Human Engine bicycle warning sign tank top cycling graphic - view 5
Caution Human Engine bicycle warning sign tank top cycling graphic - view 6
Caution Human Engine bicycle warning sign tank top cycling graphic - view 7
Caution Human Engine bicycle warning sign tank top cycling graphic - view 8
Caution Human Engine bicycle warning sign tank top cycling graphic - view 9
Caution Human Engine bicycle sign Tank - Image 10

Caution Human Engine bicycle sign Tank

Price range: $35.99 through $39.99

A tank stamped with a road-sign warning for anyone whose engine is their own two legs.

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🚚 Free shipping on orders over $50
📦 Made to order — ships in 5-12 business days (US)
🔄 Free replacements for defects or damage
👕 Premium soft cotton — the softest blanks in the business
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🇺🇸 Printed
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Description

A warning label for the self-propelled: this engine runs hot on leg power alone.

Why these folks grab this one:

  • Breathable for climbs, with a bold sign print that reads across the room.
  • A clever gift for cyclists, pedicab crews and commuters.
  • Human-engine humor that stands apart from cookie-cutter cycling gear.

The blank we print on:

Printed on the Unisex Jersey Tank (Bella+Canvas 3480) in Airlume combed ring-spun cotton—a classic unisex tank fit, true to size. Available in White, Black, Dark Grey, Leaf, Kelly, True Royal, Navy, Red, sizes XS, S, M, L, XL, 2XL.

Printed just for you: every piece is made to order, so nothing sits in a warehouse. Free U.S. shipping on orders over $50.

Rev the human engine—no gas required.

AI disclosure: product imagery features AI-generated models, not real people.

Additional information

Color

White, Black, Dark Grey, Leaf, Kelly, True Royal, Navy, Red
Size

XS, S, M, L, XL, 2XL

Shipping

  • US orders: $4.99 flat rate, or FREE on orders over $50
  • Production: 2-7 business days (every item is made to order)
  • US delivery: 2-5 business days after production
  • Total US estimate: 5-12 business days from order to doorstep
  • International: 10-30 business days after production (varies by destination and customs)
  • Tracking number sent via email when your order ships

Returns & Exchanges

  • Defective or damaged: Free replacement — email us a photo within 30 days of delivery
  • Wrong size: Since every item is printed on demand, we cannot accept returns for sizing. Please check the size chart before ordering.
  • Wrong item received: We will send the correct item at no cost to you
  • Contact us: [email protected]

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Frequently Asked Questions

What blank and material is this printed on?

It's printed on the Unisex Jersey Tank (Bella+Canvas 3480) in Airlume combed ring-spun cotton.

How does it fit?

This is a classic unisex tank fit, true to size. If you're between sizes or want extra room, size up.

What colors and sizes are available?

Colors: White, Black, Dark Grey, Leaf, Kelly, True Royal, Navy, Red. Sizes: XS, S, M, L, XL, 2XL.

How fast does it ship, and is shipping free?

Every order is made to order and typically ships in 3–5 business days. Enjoy free U.S. shipping on orders over $50.

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