COLOR: Throwback



  1. High-impact ABS plastic outer shell.
  2. Polystyrene foam (EPS) inner shell protects the head from high impact.
  3. Fidlock® magnetic buckle is easy to operate with one hand and does not pinch the skin.
  4. Two front vents, seven top vents, and two rear vents prevent head vapor.
  5. Shock-absorbing zones are used on the outside of the EPS to effectively absorb energy in the event of a collision. The shock-absorbing band effectively absorbs energy in the event of a crash and protects the head.
  6. Adjustable spin dial for easy and comfortable fit.
  7. Removable visor keeps the sun and rain out.
  8. Cushioned padding around the chin area of the strap.
  9. An inner pad set is included for optimal fit.
  10. Grooves on the inside of the EPS inner shell allow for better airflow.
  11. Reflective material is used on the front and rear NUTCASE logo areas. The NUTCASE logo is easily visible from all angles.

NUTCASE STREET S and M sizes are SG-marked helmets that have passed product safety standards and come with bodily injury liability insurancE

Size Chart

Head Size Street Helmet Size
52cm 52cm - 56cm
S 53cm
56cm 56cm - 60cm

Sorry , we can't ship overseas

  1. We ship within 1-2 business days after receiving your order (payment). (Basically, orders placed before 12:00 p.m. are shipped the same day.)
  2. Messenger delivery is available within Nagoya City only.
  3. We ship every day from Monday to Sunday, except on temporary holidays.
  4. Available delivery areas: All over Japan and the world.
  5. Please note that delivery may be delayed due to credit card processing status. If you would like to specify the delivery date and time, please fill in your request in the additional information in the shopping cart.
  6. The product will be shipped from Circles.
  7. Please contact the shipping company in case of damage or loss during shipping.

Regarding the delivery of complete bikes

  • Please note that a separate shipping fee of 9,900 yen (tax included) will be charged for shipping complete bikes. (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • After receiving your order, we will do a final check and ship complete bikes, but it may take 1-2 weeks. Please understand.
  • We will send the bike with some parts removed for packing. We strongly recommend that you have your bicycle assembled at your nearest bicycle store.
  • We will inform you of the delivery date and other details by e-mail.
  • We apologize for any sales discrepancies at the store.

Regarding the delivery of frame sets

  • Nationwide flat-rate shipping: 5,500 yen (tax included) (However, an additional fee will be charged for delivery to Okinawa and remote islands.)
  • We will inform you of the delivery date and other details by e-mail.
  • We will provide the pre-treatment of facing and tapping for the frame sets purchased at our store as a service. We will inform you separately after purchase.
  • We can also install a headset and BB for a fee, so please feel free to contact us.

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